Still some PDBs do not have any allele assigned to it

[FarzanehParizi]

Expected Behavior:
All PDBs in the template set has allele assigned, especially for anchor prediction using NetMHCIIpan

Current Behavior:
Some PDBs e.g. 6XP6, 7KEI still do not have allele assigned to them by checking the PANDORA Database pickle file for pMHCII

Detailed Description:
Probably it is from IMGT file.
But this allele name is important when we want to predict anchors using NetMHCIIpan

[DarioMarzella]

Check how many cases.
If few, we can add the allele by hand and run the precision. If not, do as the first paper and say IMGT did not provide an allele compatible with netmhcpan.

[DarioMarzella]

I think this is realted to issue #126

[FarzanehParizi]

For MHCII:
6XP6
7KEI
6DFS
6KVM

for MHCI:
1LDP
3GSX
5GSV
5W1W