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----------------------------------------------------------------------------
neXtProt - a comprehensive human-centric discovery platform
Swiss Institute of Bioinformatics (SIB); Geneva, Switzerland
----------------------------------------------------------------------------
Description: List of metadata
Name: METADATA.TXT
Release: 27-Jan-2023
----------------------------------------------------------------------------
This document lists the metadata describing the data integrated in the neXtProt knowledgebase.
Metadata descriptions are provided in the following format:
----------- ---------------------------------- -----------------------------
Topic code Content Occurrence in an entry
----------- ---------------------------------- -----------------------------
ID Unique identifier Once; starts a metadata entry
AC Unique accession (MDATA_xxxx) Once
DE Definition Optional; Once
DM Detection method Optional; Once
BS Biological standards Optional; Once
TS Tissue/cell type Optional; Once
CL Cell line Optional; Once
DI Disease Optional; Once
OG Organelle/subcellular location Optional; Once
TP Treatment/physiological state Optional; Once
SP Sample preparation Optional; Once or more
IP Instrument/platform Optional; Once
DA Data analysis procedure Optional; Once or more
DP Data processing by neXtProt Optional; Once or more
DC Data confidence documentation Optional; Once or more
DR X-Ref(s) to other database (PubMed, ...) Optional; Once or more
Format: databasename; accession DOI; 10.1016/j.trprot.2013.03.002
CC Comments or notes Optional; Once; private
// Terminator Once; ends an entry
----------------------------------------------------------------------------
TEMPLATE
----------------------------------------------------------------------------
ID Unique identifier
AC MDATA_xxxx
DE Definition
DM Detection method
BS Biological standards
TS Tissue/cell type
CL Cell line
OG Organelle
TP Treatment/physiological state
SP Sample preparation
IP Instrument/platform
DA Data analysis procedure
DP Data processing by neXtProt
DC Data confidence documentation
DR X-reference(s) to other database (PubMed, ...)
CC Comments
//
AN Next free AC: MDATA_0423
__________________________________________________________________________________________
//
ID DKFZ GFP-cDNA localisation project.
AC MDATA_0001
DE Transient overexpression of human open reading frames as N- and C-terminal fusions with CFP and YFP in monkey cells.
DM GLOBAL. Fluorescence microscopy.
CL GLOBAL. Vero [CVCL_0059].
TP GLOBAL. Overexpression of cDNA clones under the CMV promoter.
SP GLOBAL. Live cells.
IP GLOBAL. Leica DM/IRBE microscope with 63x NA 1.4PL objective and custom designed CFP or YFP filters.
DP Exclusion of partial cDNAs (236 clones).
DP Clones are aligned to neXtProt protein sequences for assignment to entries.
DC GLOBAL. SILVER. Full length clones (680 isoforms for 667 proteins).
DR PubMed; 11256614.
DR PubMed; 14623100.
CC Need to integrate data from Starkuviene et al separately (GFP-cDNA.pdf).
//
ID Glycosylation of cell surface proteins in myeloid leukemia cell lines.
AC MDATA_0002
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL LOCAL. HL-60 [CVCL_0002]; NB4 [CVCL_0005].
OG GLOBAL. Cell surface [SL-0310].
SP LOCAL. Biotinylation of cell surface glycoproteins (Glyco-CSC and Cys-Glyco-CSC) and
SP Lys-containing (Lys-CSC) cell surface proteins.
SP Digestion with trypsin. Deglycosylation by PGNase.
IP GLOBAL. Nanoscale C18 HPLC coupled to a LTQ Orbitrap mass spectrometer equipped with a nanoelectrospray ion source (Thermo Scientific).
DA GLOBAL. Protein database: UniProtKB/Swiss-Prot release 56.9 concatenated with common
DA contaminants and reversed sequences of all entries.
DA Software: Sorcerer-SEQUEST; Statistical analysis: Trans-Proteomic Pipeline TPP
DA version 4.0 JETSTREAM rev 2
DA including PeptideProphet and ProteinProphet.
DA Maximum missed cleavages: 2; Semitryptic peptides.
DA Mass tolerance for parent ion: 40 ppm.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; Asn (representing formerly N-glycosylated Asp
DA after deamidation).
DA Peptide FDR < 0.01. Protein FDR < 0.01 (estimated by MAYU with ProteinProphet
DA probability score: 0.9).
DA Exclusion of single peptide identification.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: One high resolution MS scan followed by four collision induced
DA dissociation MS/MS scans in the linear ion trap.
DA Spectra recalibration: Not available.
DP GLOBAL. Glycosylation sites: Peptides from proteins pulled down by Glyco-CSC having
DP deamidations and a consensus NXS/T glycosylation site. Exclusion of peptides containing
DP more NXS/T sites than deamidations observed.
DP Peptide identification. Exclusion of peptides with ProteinProphet initial
DP probability < 0.9.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DC LOCAL. Peptide identification: GOLD: ProteinProphet initial probability > 0.9.
DC Glycosylation. GOLD: For Glyco-CSC method: Sites from peptides where the number of
DC deamidation events >= number of NXS/T motifs;
DC SILVER: Lys-CSC: Sites from proteins having proteins purified by Glyco-CSC,
DC where number of deamidation events >= NXS/T motifs and not containing additional Asn residues.
DR PubMed; 20570859.
CC TO DO: Check with Alain what was loaded (Table S3 et/ou S7: presumably semi-tryptic peptides????)
//
ID Identification and phosphorylation of embryonic stem cell proteins.
AC MDATA_0003
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. HUES 9 [CVCL_0057].
SP GLOBAL. Protein reduction, alkylation, followed by digestion with endoproteinase
SP Lys-C and trypsin.
SP Peptide fractionation by Strong Cation eXchange column (SCX) and phosphopeptides
SP enrichment by titanium dioxide (TiO2) chromatography.
IP GLOBAL. Nanoscale C18 HPLC coupled to a LTQ FT Ultra, LTQ Orbitrap or LTQ Orbitrap mass spectrometer equipped with a nanoelectrospray source (Proxeon).
DA GLOBAL. Protein database: Human IPI release 3.37 concatenated with known contaminants
DA and reversed sequences of all entries.
DA Software: MaxQuant version 1.0.12.25; Mascot version 2.2.
DA Maximum missed cleavages: 3.
DA Mass tolerance for fragment ion: 0.5 Da.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; N-terminal acetylation; pyro-Glu;
DA Ser phosphorylation; Thr phosphorylation; Tyr phosphorylation.
DA Peptide FDR < 0.01. Protein FDR < 0.01.
DA Minimum peptide length: 6
DA Ion mode: Positive.
DA Spectra acquisition: 10 most intense precursor ions, multistage activation enabled with a
DA neutral loss [32.66, 48.99, and 97.97 atomic mass units].
DA Spectra recalibration: Lock mass.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides that
DP match more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DC LOCAL. Peptide identification: GOLD: Mascot score >= 30;
DC Phosphorylation: GOLD: Mascot score >= 30; PTM score >= 30; PTM localization
DC probability > 0.99.
DC SILVER: Mascot score >= 20; PTM score >= 20; PTM localization probability > 0.90.
DR PubMed; 21406692.
CC For the phosphorylation data:
CC Table S2. Phosphorylation site identifications: Column D (Localization Prob),
CC J (Best Mascot Score), K (PTM Score),
CC S (Phosphopeptide (STY) Probabilities).
CC Quantification data: Not annotated. N-acetylation not annotated.
//
ID Mitochondria-enriched N-terminome and proteome of myelomonocytic histiocytic lymphoma cells.
AC MDATA_0004
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. U-937 [CVCL_0007].
OG GLOBAL. Mitochondrion [SL-0173].
TP GLOBAL. Growing undifferentiated culture.
SP GLOBAL. Mitochondria preparation by standard hypotonic swelling-mechanical breakage
SP techniques, followed by removal of nuclei and gross debris.
IP GLOBAL. Nanoscale C18 HPLC coupled to a Q-TOF MS/MS (MaXis, Bruker Daltonics).
DA GLOBAL. Protein database: UniProtKB/Swiss-Prot release 2010_06 restricted to human,
DA concatenated with a target-decoy database.
DA Software: Mascot version 2.3; OMSSA version 2.1.7.
DA Maximum missed cleavages: 1.
DA Mass tolerance for parent ion: 10 ppm.
DA Mass tolerance for fragment ion: 0.02 Da.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxydation; N-terminal acetylation.
DA Peptide FDR < 0.01. Protein FDR < 0.01.
DA Peptide identification has to be confirmed by Mascot and OMSSA.
DA Validation criteria for peptide identification with > 1 peptide: Mascot Ion score >
DA Mascot Identity score and OMSSA > 1.
DA Validation criteria for single peptide identification: OMSSA > 6.8; Mascot Ion score
DA >25; and Mascot Ion score - Mascot Identity score > 4.4.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DC LOCAL. GOLD: Mascot score >= 30.
DC SILVER: Mascot score < 30.
CC Carapito C, Schaeffer-Reiss C, Ayoub D, Bairoch A, Lane L, Van Dorsselaer A, CC Rabilloud T (2011).
CC Submission to neXtProt.
//
ID HPA Tissue expression.
AC MDATA_0005
DE Protein expression profiles based on immunohistochemistry.
DM GLOBAL. Fluorescence microscopy.
BS GLOBAL. Antibody specificity is tested using Protein Array (PA), Western blot (WB), immunohistochemistry (IHC), and immunofluorescence (IF), and compared with published data.
TS LOCAL. 66 normal cell types from 46 tissues and organs.
TP Human breast cancer tissue.
SP GLOBAL. Tissue microarrays (TMAs) from multiple biopsies combined into single
SP paraffin blocks.
SP Slides are deparaffinized in xylene, hydrated in graded alcohols, and blocked for
SP endogenous peroxidase in 0.3% hydrogen peroxide diluted in 80% ethanol. Slides are
SP immersed and boiled in Target Retrieval Solution, pH 6.0 (Dakocytomation)
SP for 4 min at 125 degrees C. Automated immunohistochemistry is done using an
SP Autostainer Plus instrument (Dakocytomation).
IP GLOBAL. Slides scanned using an automated slide-scanning system, ScanScope T2 (Aperio Technologies, Vista, CA) at 20 Angstrom magnification. For each antibody 576 digital images are generated to represent the total content of the eight TMAs.
DA GLOBAL. Images are manually annotated.
DR PubMed; 21139605.
DR PubMed; 18669619.
DR PubMed; 16127175.
ID HPA Subcellular localization.
AC MDATA_0006
DE Protein subcellular localization based on immunofluorescence.
DM GLOBAL. Confocal fluorescence microscopy.
BS GLOBAL. DAPI for the nucleus; anti-tubulin antibody for microtubules; calreticulin for the endoplasmic reticulum (ER).
CL GLOBAL. A-431 [CVCL_0037]; U2OS [CVCL_0042]; U-251MG [CVCL_0021].
DA GLOBAL. Images are manually annotated.
DR PubMed; 21139605.
DR PubMed; 18669619.
//
ID Subcellular localisation from the Kahn Dynamic Proteomics Database (DyP).
AC MDATA_0007
DE Stable cell clones created using CD tagging (Central Dogma), in which eYFP is inserted as an additional exon of a protein-coding gene and the fusion gene expressed from its endogenous chromosomal location.
DM GLOBAL. Fluorescence microscopy.
CL GLOBAL. NCI-H1299 [CVCL_0060] stably transfected with XRCC5-mCherry and DAP1-mCherry.
DA GLOBAL. Images are analyzed using an automated in-house image analysis software (ScanPlate macro).
DC GLOBAL. SILVER: All data.
DR PubMed; 17571059.
//
ID Protein S-nitrosylation in prostate epithelial cells.
AC MDATA_0009
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. NPrEC [CVCL_0061].
TP GLOBAL. Treatment of cells with CysNO to nitrosylate proteins.
SP GLOBAL. Biotin switch technique (BST) coupled to either (1) neutravidin
SP pull-down of nitrosylated proteins followed by SDS-PAGE and trypsin
SP digestion, or (2) trypsin digestion followed by neutravidin pull-down.
IP GLOBAL. Nanoscale C18 HPLC coupled to a LTQ Orbitrap XL mass spectrometer.
DA GLOBAL. Protein database: Human IPI release 3.56 concatenated with
DA common contaminants and reverse sequences of all entries.
DA Software: SEQUEST in Bioworks version 3.3.
DA Maximum missed cleavages: 2.
DA Mass tolerance for parent ion: 15 ppm.
DA Mass tolerance for fragment ion: 1 Da.
DA Post-translational modifications per peptide: 3
DA Variable modifications: Met oxidation; Cys S-methylthiolation;
DA peptide biotinylation.
DA Peptide FDR < 0.01. Protein FDR < 0.01.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: Survey Orbi, 5 most intense precursor ions.
DA Spectra recalibration: Not available.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DC LOCAL. Posterior Error Probability (PEP) < 0.01. GOLD: Peptides from nitrosylated
DC proteins pulled down in two different experiments.
DC SILVER: Peptides from nitrosylated proteins pulled down in one experiment.
DR PubMed; 20140087.
CC Table S1A. nitrosylated peptides in both independent protein pull-down experiments.
CC Columns Biotinylated peptide and Prob (pep).
CC Table S1B. nitrosylated peptides in one of the two protein pull-down experiments.
CC Columns Biotinylated peptide and Prob (pep).
//
ID Protein S-nitrosylation in breast cancer cell line.
AC MDATA_0010
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. MDA-MB-231 [CVCL_0062].
TP GLOBAL. Treatment with Angeli's salt to nitrosylate proteins.
SP GLOBAL. Detection of S-nitrosylated proteins by Biotin Switch Method.
SP Reduction of disulfide bonds with DTT. Alkylation of free thiols with
SP acrylamide followed by digestion with trypsin. Reduction of S-nitrosylated peptides
SP with ascorbate. Capture of free cysteine-containing peptides by TS6B resin and
SP elution with DTT. Second alkylation with iodoacetamide.
IP GLOBAL. Nanoscale C18 HPLC coupled to a LTQ Orbitrap XL mass spectrometer equipped with a nanoelectrospray source (Thermo Scientific).
DA GLOBAL. Protein database: Human IPI release 3.52 concatenated with common
DA contaminants and reverse sequences of all entries.
DA Software: MaxQuant; Mascot version 2.1.04.
DA Maximum missed cleavages: Not available.
DA Mass tolerance for parent ion: 5 ppm.
DA Mass tolerance for fragment ion: 0.6 Da.
DA Variable modifications: Met oxidation; Cys carbamidomethylation; Cys
DA propionamidation.
DA Peptide FDR < 0.01. Protein FDR < 0.01.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: Survey Orbi, 5 most intense precursor ions.
DA Spectra recalibration: Not available.
DP Exclusion of ambiguous S-nitrosylation sites.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DC GLOBAL. GOLD: Mascot score >= 30. SILVER: Mascot score >= 20.
DR PubMed; 20687582.
CC Table S1. Column: Peptide sequences (colonne 3); Mascot Score (colonne 5); S-NO sites (colonne 6).
CC Check that we only loaded non ambiguous sites.
//
ID Endogenous protein ubiquitination sites.
AC MDATA_0012
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. HEK293T [CVCL_0063].
SP GLOBAL. Pull down of endogenous ubiquitinated substrates with recombinant GST-qUBA.
SP Protein separation either by SDS-PAGE followed by in-gel-digestion with trypsin or
SP in-solution-digestion followed by separation by isoelectric focusing (IEF).
IP GLOBAL. Nanoscale C18 HPLC coupled to a LTQ Orbitrap Velos mass spectrometer equipped with a nanoelectrospray source.
DA GLOBAL. Protein database: Human RefSeq release June 27 2009 concatenated with a
DA target-decoy database.
DA Software: Mascot version 2.2; SEQUEST (version not available).
DA Validation: Manual validation of all MS-MS spectra.
DA Maximum missed cleavages: 2.
DA Mass tolerance for parent ion: 10 ppm.
DA Mass tolerance for fragment ion: 0.5 Da.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; Lys ubiquitination.
DA Peptide FDR < 0.05. Protein FDR not available.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: 20 most intense precursor ions.
DA Spectra recalibration: Not available.
DA Manual validation of all MS-MS spectra.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DC LOCAL. Ubiquinated peptides: GOLD: Mascot score >= 20.
DC SILVER: Mascot score between 10 and 20 and peptides identified by SEQUEST.
DR PubMed; 20972266.
CC Supplemental Data 3: Column E (IonScore); Column D (Peptide_sequence source).
CC Probability for GOLD: 234; Probability for SILVER:56
//
ID Cytoplasmic proteome of human healthy erythrocytes.
AC MDATA_0013
DE Extensive analysis of the cytoplasmic proteome of human erythrocytes using the peptide ligand library technology and advanced mass spectrometry.
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
TS GLOBAL. Erythrocyte [TS-0290].
OG GLOBAL. Cytoplasm [SL-0086].
SP GLOBAL. Blood collected from healthy donors. Sample centrifugation to eliminate
SP plasma. Filtration of erythrocytes using an alpha-methylcellulose column.
SP Lysis by hypotonic shock. Hemolysate mixed with protease inhibitors.
SP Protein solution loaded on a column with Proteominer Library (Bio-Rad). Column
SP effluent continuously injected in a second column
SP connected in series, and packed with a carboxylated version of the Proteominer
SP Library. Eluate desalted by dialysis followed by lyophilization.
SP Fractionation of each eluate or initial RBC lysate by SDS-PAGE.
SP Trypsin digestion.
IP GLOBAL. Ultimate3000 system (Dionex, Amsterdam, The Netherlands) coupled to a LTQ-Orbitrap XL mass spectrometer (Thermo Fisher Scientific, Bremen, Germany).
DA GLOBAL. Protein database: UniProtKB/Swiss-Prot release 2010_11 restricted to human.
DA Software: Mascot version 2.3.
DA Maximum missed cleavages: 1.
DA Mass tolerance for parent ion: 10 ppm.
DA Mass tolerance for fragment ion: 0.6 Da.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; N-terminal acetylation.
DA Peptide FDR < 0.05 computed as described in [PubMed; 19714873].
DA Validation criteria for peptide peptide identification: Mascot rank = 1 and delta
DA score > 0. The p-value used to compute the thresholds was adjusted automatically to
DA obtain the wanted FDR.
DA Protein FDR < 0.01.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: Survey orbi, 5 most intense precursor ions.
DA Spectra recalibration: Not available.
DP Validation criteria for protein set identification: sum of peptide delta scores >
DP value automatically determined to reach the wanted FDR.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are tagged 'found in other entries'.
DC LOCAL. GOLD: Mascot delta score >= 20.
DC SILVER: Mascot delta score >= 10 and < 20.
DR PubMed; 18614565.
CC TO DO PG : revoir les tables
//
ID Sumoylation sites of SUMO2 targets in HeLa cells.
AC MDATA_0014
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. HeLa [CVCL_0030].
SP GLOBAL. SUMO2 targets pull-down using a His6-SUMO2 mutant in which all Lys are
SP replaced by Arg, thus sensitive to trypsin but not to Lys-C, and containing Tyr90Arg and Gln87Arg
SP mutations to allow tryptic digestion.
SP Protein reduction, alkylation, followed by digestion with Lys-C. His6-SUMO2
SP conjugates purification by immobilized metal affinity chromatograpy (IMAC) or
SP separation by SDS-PAGE (in-gel digested samples), followed by trypsin digestion.
IP GLOBAL. Nanoscale C18 HPLC coupled to a LTQ Orbitrap mass spectrometer equipped with a nanoelectrospray source (Proxeon). Multiple analysis of samples using either LTQ Orbitrap-XL and fragmentation by CID (IMAC samples) or LTQ Orbitrap Velos and fragmentation by HCD (in-gel digested samples).
DA GLOBAL. Protein database: Human IPI release 3.37.
DA Software: MaxQuant version 1.0.14.3; Mascot version 2.1.04.
DA Maximum missed cleavages: 4.
DA Mass tolerance for parent ion: 7 ppm.
DA Mass tolerance for fragment ion: 0.5 Da for CID fragment ions and 0.02 Da for
DA HCD fragment ions.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; N-terminal acetylation; Ser phosphorylation;
DA Thr phosphorylation;
DA Tyr phosphorylation; mass addition on Lys for GG signature tag derived from
DA SUMO2-T90R and for QQTGG signature tag from SUMO2-Q87R.
DA Minimum peptide length: Not available.
DA Ion mode: Profile for fragmentation by HCD and centroid for fragmentation by CID.
DA Spectra acquisition: Survey Orbi, 10 most intense precursor ions for fragmentation by HCD and CID.
DA Spectra recalibration: Lock mass.
DA Manual validation of MS-MS spectra of identified SUMOylated peptides, especially for
DA the Q87R experiments where fragmentation of QQTGG tag produced peaks that are not
DA assigned by the search engine.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DC LOCAL. GOLD: PTM localization probability > 0.99; Posterior Error Probability (PEP) < 0.01.
DC SILVER: PTM localization probability > 0.90; Posterior Error Probability (PEP) < 0.01.
DR PubMed; 20797634.
CC Table S1. Tab: SUMOylated peptides. Column E (Modified Sequence), G (PEP), I (Localization Prob).
//
ID Lysine ubiquitination sites in U2OS and HEK293T cells.
AC MDATA_0015
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. HEK293T [CVCL_0063]; U2OS [CVCL_0042].
SP GLOBAL. Strep-HA-tagged ubiquitin conjugated proteins pull down with Strep-Tactin
SP Sepharose. Separation by SDS-PAGE, reduction and alkylation. Trypsin digestion,
SP resulting in diglycine remnant of ubiquitin attached to Lys.
IP GLOBAL. Nanoscale C18 HPLC coupled to a LTQ Orbitrap Velos (fragmentation by HCD) mass spectrometer equipped with a nanoelectrospray source (Proxeon).
DA GLOBAL. Protein database: Human IPI release 3.37 concatenated with a target/reversed decoy database.
DA Software: MaxQuant version 1.0.14.7; Mascot version 2.2.04.
DA Maximum missed cleavages: 2.
DA Mass tolerance for parent ion: 7 ppm.
DA Mass tolerance for fragment ion: 0.02 Da.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; N-terminal acetylation; Gly-Gly addition to Lys.
DA Peptide FDR < 0.01. Protein FDR < 0.01.
DA Minimum peptide length: Not available.
DA Ion mode: Data-dependent mode.
DA Spectra acquisition: Survey Orbi, 10 most intense precursor ions.
DA Spectra recalibration: Lock mass.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DC LOCAL. Peptide identification: GOLD: Mascot score >= 30.
DC Ubiquitination: GOLD: Mascot score >= 30; PTM localization probability > 0.99.
DC SILVER: Mascot score >= 20; PTM localization probability > 0.90.
DR PubMed; 21139048.
CC Supplemental table 1 (mcp.M110.003590-1): List of all lysine ubiquitylation sites: Column G (Localization Prob), K (Mascot Score), L (Modified Sequence).
CC Supplemental table 3 (mcp.M110.003590-3): 54,846 peptides identified (of which 753
CC ubiquitylated peptides) on ubiquitinated proteins:
CC Column B (peptide sequence), K (mascot score).
CC Quantification data: Not annotated. Cell line data pooled into the same table (GLOBAL).
CC NOTE there were 5113 silver peptides from this paper. Asked to remove Oct 2013.
//
ID Phosphorylation site occupancy during mitosis.
AC MDATA_0016
DM GLOBAL. Mass spectrometry Nano LC/MS/MS.
CL GLOBAL. HeLa S3 [CVCL_0058].
TP GLOBAL. Thymidine block to synchronize cells in G1-S. SILAC labeling.
SP GLOBAL. Protein reduction, alkylation, followed
SP by digestion with endoproteinase Lys-C and trypsin.
SP Peptide fractionation by Strong Cation eXchange column (SCX) and phosphopeptide
SP enrichment by Strong Cation eXchange column (SCX)
SP and phosphopeptides enrichment by titanium dioxide (TiO2) chromatography.
IP GLOBAL. Nanoscale C18 HPLC coupled to a LTQ-Orbitrap mass spectrometer equipped with a nanoelectrospray source (Proxeon).
DA GLOBAL. Protein database: Human IPI release 3.37 concatenated with known contaminants
DA and reversed sequences of all entries.
DA Software: MaxQuant version 1.0.12.0; Mascot version 2.2.04. Enzyme specificity was
DA set to trypsin,
DA allowing for cleavage of N-terminus to Pro and between Asp and Pro.
DA Maximum missed cleavages: 3.
DA Mass tolerance for the parent ion: 7 ppm.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; N-terminal acetylation; Ser phosphorylation;
DA Thr phosphorylation; Tyr phosphorylation; loss of ammonia from N-terminal Glu.
DA Peptide FDR < 0.01. Protein FDR < 0.01.
DA Minimum peptide length: 6
DA Ion mode: Positive.
DA Spectra acquisition: One orbitrap full-scan and five ion trap tandem mass spectra,
DA multistage activation enabled for neutral loss of phosphoric acid
DA [32.66, 48.99, and 97.97 atomic mass units].
DA Spectra recalibration: Lock mass.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DC LOCAL. GOLD: Mascot score >= 30; PTM score >= 30; PTM localization probability > 0.99.
DC SILVER: Mascot score >= 20; PTM score >= 20; PTM localization probability > 0.90.
DR PubMed; 20068231.
CC For the phosphorylation data:
CC Table S2. List of all identified phosphopeptides: Column N (P-site Loc. Prob.),
CC U (Best Mascot Score), V (PTM Score), AB
CC (Phosphopeptide (STY) Probabilities).
CC For the mitotic data:
CC Table S7. List of regulated mitotic phosphorylation sites with high occupancy:
CC Column AH/AK = ratio of mitosis phosphosite
CC occupancy compared to S phase.
CC Take all values greater than 10 (ie, phosphosite occupancy site > 10-fold).
CC LOCAL. Sentence: Highly increased during mitosis.
CC TO DO: Review SP - phosphopeptide enrichment description confused.
//
ID Glycosylation of cell surface proteins in HEK293T cell line.
AC MDATA_0018
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. HEK293T [CVCL_0063].
OG GLOBAL. Cell surface [SL-0310].
SP GLOBAL. Reduction by DTT and alkylation of protein disulfide bonds by IAA.
SP First protease digestion by Lys-C. Oxidization of cis-diol groups on
SP glycans to aldehydes by sodium periodate. Coupling reaction by
SP introducing hydrazide resin. Second protease digestion by trypsin.
SP Collection of LT-peptides (peptides produced first by Lys-C then by trypsin).
SP De-glycosylation by PNGase F. Collection of DG-peptides (formerly
SP glycosylated peptides released by PNGase F, namely deglycopeptides).
IP GLOBAL. Nanoscale C18 HPLC coupled to a LTQ Orbitrap XL (fragmentation by CID) mass spectrometer equipped with a nanoelectrospray ion source (Thermo Fisher Scientific).
DA GLOBAL. Protein database: UniProtKB/Swiss-Prot (release number not available)
DA concatenated with common contaminants and reversed sequences of all
DA entries.
DA Software: SEQUEST (version not available).
DA Statistical analysis: Trans-Proteomic Pipeline TPP including PeptideProphet.
DA Maximum missed cleavages: 2.
DA Mass tolerance for parent ion: 10 ppm.
DA Mass tolerance for fragment ion: 1 Da.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; Asn (representing formerly
DA N-glycosylated Asp after deamidation).
DA Peptide FDR < 0.01. Protein FDR < 0.01.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: 8 most intense precursor ions.
DA Spectra recalibration: Not available.
DP GLOBAL. Glycosylation sites: Peptides from DG collection. Exclusion
DP of peptides containing more than one NXS/T site.
DP Peptide identification: Peptides from DG and LT collections.
DP Exclusion of peptides with PeptideProphet initial probability < 0.9.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DC LOCAL. Peptide identification and glycosylation sites.
DC GOLD: PeptideProphet initial probability > 0.99.
DR PubMed; 21645671.
CC Glycosylation sites: Table 1 sheet B1; probability column A; modified peptide
CC sequence column G.
CC Peptides: Table 1 sheet B2; probability column A; peptide sequence column G.
CC Note: there were 67 silver peptides loaded from this paper. Asked to remove Oct 2013.
//
ID Proteins detected in human cell lines.
AC MDATA_0019
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL LOCAL. HeLa [CVCL_0030]; K-562 [CVCL_0004]; HEK293 [CVCL_0045]; Namalwa [CVCL_0067]; HaCaT [CVCL_0038]; Hep-G2 [CVCL_0027]; U-937 [CVCL_0007].
SP GLOBAL. Protein reduction, alkylation, and separation by SDS-PAGE, followed by
SP in situ digestion by trypsin. Each tryptically-digested sample analyzed as replicates.
IP GLOBAL. Nanoscale C18 HPLC coupled to LTQ-Orbitrap XL mass spectrometer (ThermoFisher Scientific, Waltham, MA).
DA GLOBAL. Protein database: UniProtKB/Swiss-Prot release 56.1 including isoforms,
DA concatenated with reversed sequences.
DA Software: Mascot version 2.2.03; Phoenix version 2.5.14. Peptide samples duplicates
DA are identified separately by
DA Mascot and Phenyx then combined. Spectra assigned to different peptides by the two
DA search engines during the merge of the results are discarded.
DA Maximum missed cleavages: 1.
DA Mass tolerance for the parent ion: 4 ppm.
DA Mass tolerance for fragment ion: 0.3 Da.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation.
DA Protein FDR < 0.0025; Peptide FDR < 0.001.
DA Minimum peptide length: 6.
DA Ion mode: Positive.
DA Spectra acquisition: Not available.
DA Spectra recalibration: Not available.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DC GLOBAL. GOLD: All peptides.
DR PubMed; 21269460.
CC Files for peptide of each cell line: M:\Calipho\Proteomic data\J. Colinge data
CC (note that some cell lines have more than one file).
CC From Jacques's paper: A minimum of 2 distinct peptides above a score threshold of
CC 18 for Mascot and 4.5 for Phenix are required for protein identifications.
CC Single peptide hits are accepted but above a score threshold of 50 for Mascot and
CC 6.0 for Phenix, and provided the protein sequence coverage was 2.5% or more.
CC ALAIN: CAN WE DO THAT ???
CC For the 1124 proteins of the 'central proteome', add a comment 'According to Colinge et al, this protein is part of the human central proteome
CC of proteins detected in all cells. (Note that this belongs at the protein level, not at the peptide level).
//
ID Lysine ubiquitination sites in MV4-11 and HEK293T cells.
AC MDATA_0020
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. HEK293T [CVCL_0063]; MV4-11 [CVCL_0064].
SP GLOBAL. Lysates treatment with protease inhibitors and N-ethylmaleimide
SP to inhibit cysteine-based proteases such as deubiquitylases. Protein
SP reduction, alkylation, followed by digestion with Lys-C and trypsin,
SP resulting in diglycine remnant of ubiquitin attached to Lys.
SP Immunoprecipitation of modified peptides with
SP diglycine-specific monoclonal antibody and fractionation by isoelectric
SP focusing (IEF) or by Strong Cation eXchange (SCX).
IP GLOBAL. Nanoscale C18 HPLC coupled to LTQ Orbitrap Velos mass spectrometer equipped with a nanoelectrospray source. Peptides with unassigned charge states or with charge state less than +3 excluded from fragmentation.
DA GLOBAL. Protein database: Human IPI release 3.68 concatenated with
DA common contaminants and reversed sequences of all entries.
DA Software: MaxQuant version 1.1.1.17; Andromeda search engine.
DA Maximum missed cleavages: 2.
DA Mass tolerance for parent ion: 6 ppm.
DA Mass tolerance for fragment ion: 20 ppm (HCD MS2 mode).
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; N-terminal acetylation; mass
DA addition on Lys for GG signature tag derived from ubiquitin remnant
DA attached to Lys.
DA Peptide FDR < 0.01. Protein FDR < 0.01.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: Survey Orbi, 10 most intense ions.
DA Spectra recalibration: Lock mass.
DA The C-terminal diglycine site identifications were removed.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DP GLOBAL. Ubiquitination: a small fraction of ubiquitinated sites is
DP likely to originate from modification by ISG15 or NEDD8 and is
DP filtered according to neXtProt sequence annotation.
DC LOCAL. Peptide identification: GOLD: Andromeda score >= 100.
DC Ubiquitination: GOLD: Andromeda score >= 100; PTM localization probability > 0.99.
DC SILVER: Andromeda score >= 100; PTM localization probability > 0.90.
DR PubMed; 21890473.
CC Supplemental table 1 (mcp.M111.013284-2), localization probability (column J),
CC score (column L) and peptide sequence (column M).
CC Modified Lys are shown as "K(gl)".
//
ID Pancreatic islets proteome.
AC MDATA_0023
DM GLOBAL. Mass spectrometry Nano LC/MS/MS.
TS GLOBAL. Pancreatic islet [TS-0741].
SP GLOBAL. Solubilization of the lyophilized islets in Rapigest, ultrasonication
SP and protein denaturation. Reduction at 60 degrees C and alkylation of protein
SP disulfide bonds by IAA. Protein denaturation and trypsin digestion. Peptide
SP separation by Off-gel electrophoresis.
IP GLOBAL. Nanoscale C18 HPLC coupled to LTQ-Orbitrap velos mass spectrometer (fragmentation by CID, gas phase fractionnation with four m/z windows: 400-520, 515-690, 685-979, 974-2000) equipped with a nanoelectrospray ion source (home-made).
DA GLOBAL. Protein database: UniProtKB/Swiss-Prot release 2011_02 plus reversed
DA sequences of all entries.
DA Software: EasyProt version 2.2, build 568.
DA Maximum missed cleavages: 1.
DA Mass tolerance for parent ion: 10 ppm.
DA Mass tolerance for fragment ion: scoring dependent (same algorithm as Phenyx).
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation.
DA Peptide FDR < 0.01. Protein FDR not available.
DA Minimum peptide length: 6.
DA Ion mode: Positive.
DA Spectra acquisition: One orbitrap full-scan, 3 CID ion trap tandem
DA mass spectra and 3 HCD ion trap tandem mass spectra. Z score > 4.5.
DA DOI; 10.1016/j.trprot.2013.03.002
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DC GLOBAL. GOLD: All peptides.
CC Authors (2012): Domitille Schvartz, Alexandre Hainard, Nadia Walter, Ernest Sargsyan,
CC Peter Bergsten, Jean-Charles Sanchez.
CC Submission to neXtProt.
CC File ProteinExport of GPF4+H1744+HP121166.xlsx, worksheet Protein Details'.
CC Peptide Sequence (Column P).
//
ID Arginine and lysine methylation sites.
AC MDATA_0024
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. Jurkat [CVCL_0065].
TS GLOBAL. T-cell [TS-1001].
TP GLOBAL. SILAC labeling.
SP GLOBAL. Cell lysate in non-denaturing buffer for immunoenrichment of
SP Arg methylated peptides using
SP anti-dimethylarginine mAb. Bis-Tris NuPAGE followed by in-gel digestion. Cell
SP lysate in denatured buffer for in-solution digestion with trypsin or
SP chymotrypsin. Peptides fractionation by either Strong Cation eXchange (SCX),
SP Hydrophilic Interaction Liquid Chromatography (HILIC) or Isoelectric Focusing
SP (IEF) to collect Arg methylated peptides in fractions of charge >=+3 and most
SP hydrophilic fractions.
IP GLOBAL. Nanoscale C18 HPLC coupled to LTQ Orbitrap XL or Q Exactive mass spectrometer equipped with a nano electrospray source (Thermo Electron). Peptides with charge state +1 were excluded from fragmentation.
DA GLOBAL. Protein database: Human IPI release 3.78 and 3.79 concatenated with
DA the reversed decoy version.
DA Software: Mascot version 2.3.01, X!TANDEM version 2008.12.01.1, OMSSA
DA version 2.1.8.
DA Maximum missed cleavages: 3.
DA Mass tolerance for parent ion: 10 ppm for LTQ-Orbitrap XL, 20 ppm for Q Exactive.
DA Mass tolerance for fragment ion: 0.5 Da for LTQ-Orbitrap XL, 0.1 Da for Q Exactive.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; Met heavy oxidation;
DA Arg monomethylation; Arg heavy monomethylation; Arg dimethylation;
DA Arg heavy dimethylation.
DA Assignment of a methylation site required the identification at 1 % FDR and a
DA confirming peptide with the precursor spectrum of equal intensity
DA separated by a mass difference introduced by the light/heavy methyl groups.
DA Peptide FDR approx. 0.01, Meth-R peptide FDR approx. 0.01.
DA Protein FDR not available.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: For LTQ-Orbitrap XL: 5 most intense parent ions.
DA For Q Exactive: 10 most intense parent ions.
DA Spectra recalibration: not available.
DP Peptides with InterProphet probability < 0.95 are excluded.
DP Methylated peptides containing uncertain methylation sites are removed.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DC GLOBAL. Peptide identification. GOLD: InterProphet probability score >= 0.99.
DC GLOBAL. Methylation sites. GOLD: All sites.
DR PubMed; 22865923.
CC Supplemental table S4 (mcp.M112.020743-5). Column “peptide”, sequence;
CC “InterProphet probability”, probability score of peptides. Converted to xls
CC Table-S4.xlsx: One peptide has been deleted from sheet Table S4 due to the
CC unclear information on the number of methylated sites.
//
ID Peptides and phosphorylation sites in HEK293 cells.
AC MDATA_0025
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. HEK293 [CVCL_0045].
SP GLOBAL. In-solution digestion of cell lysates by Lys-N, Lys-C and trypsin
SP separately. Peptide desalting using Sep-Pak 50 mL C18 cartridges and
SP Strong Cation eXchange (SCX) fractionation.
IP GLOBAL. Nanoscale C18 HPLC coupled to LTQ-Orbitrap mass spectrometer equipped with a nanoelectrospray source (Thermo Scientific).
DA GLOBAL. Protein database: UniProtKB/SwissProt human release 56.2.
DA Software: Mascot version 2.2.01.
DA Maximum missed cleavages: 1.
DA Mass tolerance for parent ion: 5 ppm.
DA Mass tolerance for fragment ion: 0.6 Da.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; N-terminal acetylation; Ser phosphorylation;
DA Thr phosphorylation; Tyr phosphorylation.
DA Peptide FDR < 0.01. Protein FDR not available.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: 5 most intense precursor ions.
DA Spectra recalibration: Not available.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DC GLOBAL. Peptide identification. GOLD: Mascot score >= 30;
DC Phosphorylation. GOLD: Mascot score >= 30; PTM score >= 30;
DC phosphorylation sites with same number of possible phosphorylation sites as number of (T+Y+S).
DR PubMed; 19413330.
CC Peptide identification.
CC ac9004309_si_001. Datasheet LysNnonmodifiedpeptides: Peptide sequence (Column A), mascot score (Column B).
CC ac9004309_si_002. Datasheet LysCnonmodifiedpeptides: Peptide sequence (Column A), mascot score (Column B).
CC ac9004309_si_003. Datasheet Trypsinnonmodifiedpeptides: Peptide sequence (Column A), mascot score (Column B).
CC ac9004309_si_004. Datasheet TrypsinSCXreplicatenonmodified: Peptide sequence (Column A), mascot score (Column B).
CC Phosphorylation.
CC ac9004309_si_001. Datasheet LysNphophopeptides: Peptide sequence (Column A), mascot score (Column C), PTM score (Column G), PTM info (phosphosite) (Column H).
CC ac9004309_si_002. Datasheet LysCphosphopeptides: Peptide sequence(Column A), mascot score (Column C), PTM score (Column G), PTM info (phosphosite) (Column H).
CC ac9004309_si_003. Datasheet Trypsinphosphopeptides: Peptide sequence(Column A), mascot score (Column C), PTM score (Column G), PTM info (phosphosite) (Column H).
CC ac9004309_si_004. Datasheet TrypsinSCXreplicatephospho: Peptide sequence(Column A), mascot score (Column C), PTM score (Column G), PTM info (phosphosite) (Column H).
CC Only load phosphorylation sites with same number of possible phosphorylation sites as number of (T +Y+S), which is about 500 sites (out of >2000).
CC PG Checked May 28-2013.
CC Acetylation sites re-integrated by SP.
CC YZ revised May 29 2013.
//
ID Glycosylation of whole cell proteins in human pancreatic islets.
AC MDATA_0026
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
TS GLOBAL. Pancreatic islet [TS-0741].
SP LOCAL. Ultrasonication and protein denaturation. Reduction at 60 degrees C and
SP alkylation of protein disulfide bonds by IAA. Protein denaturation and
SP trypsin digestion. Acidification and peptide extraction by
SP RP-HPLC. Oxidization by sodium periodate/sodium acetate. Coupling
SP reaction by introducing hydrazide beads. De-glycosylation by PNGase F.
SP N-glycosites peptides collection and RP-LC purification.
IP GLOBAL. Nanoscale C18 HPLC coupled online to a LTQ FTICR (fragmentation by CID) mass spectrometer equipped with a nanoelectrospray ion source (Thermo Fisher Scientific).
DA GLOBAL. Protein database: Human IPI release 3.26 concatenated with common
DA contaminants and reversed sequences of all entries.
DA Software: SORCERER-SEQUEST version 4.0.3; statistical analysis:
DA Trans-Proteomic Pipeline 3.5 TPP including PeptideProphet and
DA ProteinProphet software.
DA Maximum missed cleavages: 2.
DA Mass tolerance for parent ion: 15 ppm.
DA Mass tolerance for fragment ion: 0.8 Da.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; Asn deamidation.
DA Peptide FDR < 0.01. Protein FDR < 0.01.
DA Minimum peptide length: 6.
DA Ion mode: Positive.
DA Spectra acquisition: 5 most intense precursor ions.
DA Spectra recalibration: Not available.
DP Glycosylation sites: Peptides having a consensus glycosylation
DP site. Exclusion of peptides containing more NXS/T sites.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides matching
DP more than one entry are labeled 'found in other entries'.
DP Exclusion of modifications found on non-proteotypic peptides.
DC GLOBAL. Peptide. GOLD: Peptides for which protein probability >= 0.99.
DC Glycosylation. GOLD: All sites on peptides having a consensus glycosylation site.
DC Exclusion of peptides containing more NXS/T sites.
DR PubMed; 22148984.
CC Peptides and glycosylation sites: Table S3 (pr2007895_si_012.xls). Column F, peptide
CC sequence with glycosylation site; column H, proteinprobability.
CC All peptides in Table S3 have a PeptideProphet score >= 0.99 as described in paper.
CC Checked by Ying Sept 26 2012. Checked by PG May 27 2013.
//
ID Phosphorylation sites in telomerase-expressing human retinal epithelial (hTERT-RPE) cells.
AC MDATA_0027
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. hTERT-RPE1 [CVCL_4388].
SP GLOBAL. Protein denaturation. In-solution digestion with Lys-C and
SP trypsin. Strong Cation eXchange column (SCX) fractionation of peptides.
SP Phosphopeptide enrichment by PHOS-Select iron affinity gel.
IP GLOBAL. Nanoscale C18 HPLC coupled to LTQ Orbitrap mass spectrometer equipped with a nanoelectrospray source (Thermo Scientific).
DA GLOBAL. Protein database: Human IPI release 3.37 concatenated with
DA reversed sequences of all entries.
DA Software: MaxQuant version 1.0.13.12; Mascot version 2.2.04.
DA Maximum missed cleavages: 3.
DA Mass tolerance for parent ion: 7 ppm.
DA Mass tolerance for fragment ion: 0.5 Da.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; N-terminal acetylation; ammonia
DA loss from N-terminal of Gln and Cys; Ser phosphorylation; Thr phosphorylation;
DA Tyr phosphorylation.
DA Peptide FDR < 0.01. Protein FDR < 0.01.
DA Minimum peptide length: 6.
DA Ion mode: Positive.
DA Spectra acquisition: 10 most intense precursor ions.
DA Spectra recalibration: Lock mass.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches.
DP Peptides that match more than one entry are tagged 'found in other entries' and
DP displayed on each relevant entry.
DP Exclusion of modifications found on non-proteotypic peptides.
DC GLOBAL. Peptide identification. GOLD: Mascot score >= 30; PEP <= 0.01.
DC LOCAL. Phosphosites. GOLD: Mascot score >= 30; PEP <= 0.01;
DC PTM localization probability >= 0.99; Delta PTM score >= 10.
DC SILVER. Mascot score >= 30; PEP <= 0.01; PTM localization probability >= 0.95.
DR PubMed; 22199227.
CC Supplemental Table S3 (mcp.O111.012351-4).
CC Peptide identification. Peptide sequence (Column K),
CC Posterior Error Probability (PEP) (Column V), Mascot score (Column Z).
CC Phosphorylation. Peptide sequence (Column K), phosphosites and PTM localization
CC probability (Column V), Posterior Error Probability (PEP) (Column Z),
CC Mascot score (Column AC), PTM Delta (Column AE).
CC GLOBAL. Note: authors detected PLK1 substrates with the following procedure
CC (data not integrated):
CC SILAC labeled cells expressing the protein kinase PLK1 either
CC in wild-type or in an analog-sensitive mutant. Cells treatment with DNA
CC polymerase inhibitor aphidicolin followed by anti-neoplastic agent
CC nocodazole to arrest cells in the M phase. Wash-out of 3-MB-PP1 from the
CC cell medium to induce the activity of mutant protein kinase PLK1.
CC For data confidence, did not take PTM score into account because it does not seem to make difference.
//
ID Phosphorylation sites in HeLa cells.
AC MDATA_0028
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL GLOBAL. HeLa [CVCL_0030].
SP GLOBAL. Cells lysed with denatured buffer containing phosphatase
SP inhibitors. In-solution digestion with either Glu-C, trypsin, or 1st Glu-C 2nd
SP trypsin. Phosphopeptides enrichment using Ti4+-IMAC microspheres.
IP GLOBAL. Nanoscale C18 HPLC coupled to LTQ Orbitrap XL mass spectrometer equipped with a nanoelectrospray source (Thermo Scientific).
DA GLOBAL. Protein database: Human IPI release 3.17 concatenated with
DA reversed sequences of all entries.
DA Software: SEQUEST (version not available).
DA Maximum missed cleavages: 2 for trypsin, 3 for Glu-C and 4 for second
DA trypsin digestion.
DA Mass tolerance for parent ion: 10 ppm.
DA Mass tolerance for fragment ion: 1 Da.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; Ser phosphorylation; Thr phosphorylation;
DA Tyr phosphorylation.
DA Peptide FDR < 0.01. Protein FDR not available.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: 3 most intense precursor ions.
DA Spectra recalibration: Not available.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches.
DP Peptides that match more than one entry are tagged 'found in other entries' and
DP displayed on each relevant entry.
DP Exclusion of modifications found on non-proteotypic peptides.
DC GLOBAL. Peptide identification. GOLD. Charge 2+: Xcorr score >= 2.0; deltaCn >= 0.1.
DC Charge 3+: Xcorr score >= 2.5; deltaCn >= 0.1.
DC LOCAL. Phosphorylation. GOLD. Charge 2+: Xcorr score >= 2.0; deltaCn >= 0.1.
DC Charge 3+: Xcorr score >= 2.5; deltaCn >= 0.1. Ascore >= 19.
DC SILVER. Charge 2+: Xcorr score >= 2.0; deltaCn >= 0.1.
DC Charge 3+: Xcorr score >= 2.5; deltaCn >= 0.1. Ascore >= 15.
DR PubMed; 22468782.
CC Supplemental Table S1 (pr300242w_si_002).
CC Peptide identification. Datasheet Trypsin digestion: Sequence (column A),
CC charge (column F), Xcorr score (column G), deltaCn (column H).
CC Datasheet Glu-C digestion: Sequence (column A), charge (column F),
CC Xcorr score (column G), deltaCn (column H).
CC Datasheet Second trypsin digestion: Sequence (column A), charge (column F),
CC Xcorr score (column G), deltaCn (column H).
CC Phosphorylation. Datasheet Trypsin digestion: Sequence (column A),
CC Ascore (column O, S, W).
CC Datasheet Glu-C digestion: Sequence (column A), Ascore (column O, S, W).
CC Datasheet Second trypsin digestion: Sequence (column A), Ascore (column O, S, W).
CC Merge all the three datasheets and select the phosphopeptides with best scores for
CC the duplicates.
//
ID Peptides and phosphorylation sites from normal and cancer colorectal tissue and cell lines.
AC MDATA_0029
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL LOCAL. HCT 116 [CVCL_0291]; SW480 [CVCL_0546]; SW620 [CVCL_0547].
TP Human colorectal cancer and tumor-adjacent normal tissue.
SP GLOBAL. Protein extraction and trypsin digestion by a filter-assisted sample
SP preparation (FASP) protocol.
SP Phosphopeptides enrichment by Fe (III) affinity chromatography (Fe-IMAC).
SP Peptides and Phosphopeptides fractionation by Strong Cation eXchange column (SCX) and
SP desalted with C18 StageTips.
IP GLOBAL. Nanoscale C18 HPLC coupled to LTQ-Orbitrap Velos mass spectrometer equipped with a nanoelectrospray source (Thermo Scientific).
DA GLOBAL. Protein database: UniProtKB/SwissProt release 2010_05.
DA Software: Proteome discoverer version 1.3; Mascot version 2.3.
DA Maximum missed cleavages: 2.
DA Mass tolerance for parent ion: 7 ppm.
DA Mass tolerance for fragment ion: 0.5 Da for CID and 0.01 Da for HCD.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; Ser phosphorylation; Thr phosphorylation;
DA Tyr phosphorylation.
DA Peptide FDR < 0.01. Protein FDR not available.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: 10 most intense precursor ions.
DA Spectra recalibration: Not available
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches.
DP Peptides that match more than one entry are tagged 'found in other entries'
DP and displayed on each relevant entry.
DP Exclusion of modifications found on non-proteotypic peptides.
DC GLOBAL. Peptide identification. GOLD: Mascot CID score >= 30 or HCD score >= 30.
DC LOCAL. Phosphorylation. GOLD: Mascot CID score >= 30 or HCD score >= 30;
DC PTM localization probability >= 0.99;
DC SILVER. PTM localization probability >= 0.95.
DR PubMed; 23312004.
CC Peptide identification. Supplemental Table S3 (pr300825_si_003).
CC For every datasheet: Peptide sequence (Column B), ionscore for CID (Column I),
CC ionscore for HCD (Column J).
CC Phosphorylation sites. Supplemental Table S4 (pr300825_si_004).
CC Datasheet SW480+SW620: Sequence (column B), ionscore CID (column I), ionscore HCD
CC (column J), PTM localization probability (column L).
CC Datasheet CRC_tissue2_non-tumor: Sequence (column B), ionscore CID (column G),
CC PTM localization probability (column I).
CC Datasheet CRC_tissue2_ tumor: Sequence (column B),ionscore CID (column G),
CC PTM localization probability (column I).
//
ID Cellular O-GalNAc glycoproteome.
AC MDATA_0030
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
CL LOCAL. Capan-1 [CVCL_0237]; COLO 205 [CVCL_0218]; Hep-G2 [CVCL_0027]; K-562 [CVCL_0004]; OVCAR-3 [CVCL_0465]; T-47D [CVCL_0553]; MCF-7 [CVCL_0031]; HeLa [CVCL_0030]; HaCaT [CVCL_0038]; MDA-MB-231 [CVCL_0062]; IMR-32 [CVCL_0346]; HEK293 [CVCL_0045].
SP GLOBAL. Enrichment of glycoproteins from total cell lysates and secreted media of 12
SP human SimpleCell lines by short VVA (Vicia villosa agglutimin) agarose column.
SP Glycoprotein digestion with trypsin or chymotrypsin. Peptide purification by C18 solid
SP phase, neuraminidase treatment to remove sialic acids. O-glycopeptides enrichment by
SP LWAC-VVA column (lectin weak affinity chromatography with immobilized Vicia villosa
SP agglutimin), fractionation by isoelectric focusing (IEF).
IP GLOBAL. Nanoscale C18 HPLC coupled online to a LTQ-Orbitrap XL HCD/ETD spectrometer (Thermo Fisher Scientific) equipped with a nanoelectrospray ion source.
DA GLOBAL. Protein database: Human UniProt KB/SwissProt release 2010_07
DA Software: Proteome Discoverer version 1.2, SEQUEST (version not available), ZCore (version not available).
DA Maximum missed cleavages: Not available.
DA Mass tolerance for parent ion: 10 ppm.
DA Mass tolerance for fragment ion: 50 mmu.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation; HexNAc attachment to Ser, Thr, and Tyr.
DA Peptide FDR < 0.05. Protein FDR not available.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: 3 most intense precursor ions.
DA Spectra recalibration: Lock mass.
DP GLOBAL. Glycosylation : Removal of ambiguously identified glycosites.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches. Peptides that match
DP more than one entry are tagged 'found in other entries' and displayed on each relevant entry.
DP Exclusion of modifications found on non-proteotypic peptides.
DC GLOBAL. Glycosylation. SILVER: All sites.
DR PubMed; 23584533.
CC Glycosylation. Table emboj201379s2 (Table S2).
CC Datasheet Suppl. Table S2(H): Glycopeptide sequeces (Column F), O-glycosites with unamibuguous assignments (column H).
CC Datasheet Suppl. Table S2(B): Glycosylated sites (column B), cell lines (columns C to AB).
CC Do not load peptides because no peptide scores available and they would be SILVER.
CC Revised by Ying 29 May 2013 .
//
ID Peptides in breast cancer tissues.
AC MDATA_0031
DM GLOBAL. Mass spectrometry Nano LC-MS/MS.
TP Human breast cancer tissue.
SP GLOBAL. Enrichment of membrane proteins by sequential centrifugation. In-solution
SP digestion by Lys-C followed by trypsin. Peptides fractionation by Strong Cation
SP eXchange (SCX) and desaltification with C18 StageTips.
IP GLOBAL. Nanoscale C18 HPLC coupled to LTQ-Orbitrap Velos mass spectrometer equipped with a nanoelectrospray source (Thermo Scientific).
DA GLOBAL. Protein database: UniProtKB/SwissProt release 2010_05.
DA Software: Proteome Discoverer beta version 1.3; Mascot version 2.3.1.
DA Maximum missed cleavages: 1.
DA Mass tolerance for parent ion: 7 ppm.
DA Mass tolerance for fragment ion: 0.6 Da for CID and 0.01 Da for HCD.
DA Fixed modification: Cys carbamidomethylation.
DA Variable modifications: Met oxidation.
DA Peptide FDR <= 0.01. Protein FDR not available.
DA Minimum peptide length: Not available.
DA Ion mode: Positive.
DA Spectra acquisition: 10 most intense precursor ions.
DA Spectra recalibration: Not available.
DP Exclusion of peptides of less than 7 amino acids.
DP Alignment of peptides on the human proteome for exact matches.
DP Peptides that match more than one entry are tagged 'found in other entries'
DP and displayed on each relevant entry.
DC GLOBAL. Peptide identification. GOLD: Mascot CID score >= 30 or HCD score >= 30.
DR PubMed; 23153008.
CC Peptide identification. Supplemental Table S2.
CC Peptide sequence (Column A), ionscore for CID (Column G), ionscore for HCD (Column K).
CC In Table S2: 39611 peptides having CID score >= 30,
CC 6580 peptides having CID score < 30 and HCD >= 30.
//
ID Lysine ubiquitination and N-acetylation sites in Jurkat E6.1 cells.
AC MDATA_0032