diff --git a/mdagent/tools/base_tools/preprocess_tools/uniprot.py b/mdagent/tools/base_tools/preprocess_tools/uniprot.py
index 28dfae69..142ded32 100644
--- a/mdagent/tools/base_tools/preprocess_tools/uniprot.py
+++ b/mdagent/tools/base_tools/preprocess_tools/uniprot.py
@@ -475,7 +475,7 @@ def get_sequence_info(self, query: str, primary_accession: str) -> dict:
                 - 'crc64': The CRC64 hash of the protein sequence (probably not useful)
                 - 'md5': The MD5 hash of the protein sequence (probably not useful)
         """
-        seq_info = self.data = self.get_data(query, desired_field="sequence")
+        seq_info = self.get_data(query, desired_field="sequence")
         if not seq_info:
             return {}
         seq_info_specific = self._match_primary_accession(seq_info, primary_accession)[