Structure of PDB 3rif Chain A Binding Site BS04

Receptor Information
>3rif Chain A (length=340) Species: 6239 (Caenorhabditis elegans) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
SDSKILAHLFTSGYDFRVRPPTDNGGPVVVSVNMLLRTISKIDVVNMEYS
AQLTLRESWIDKRLSYGVKGDGQPDFVILTVGHQIWMPDTFFPNEKQAYK
HTIDKPNVLIRIHNDGTVLYSVRISLVLSCPMYLQYYPMDVQQCSIDLAS
YAYTTKDIEYLWKEHSPLQLKVGLSSSLPSFQLTNTSTTYCTSVTNTGIY
SCLRTTIQLKREFSFYLLQLYIPSCMLVIVSWVSFWFDRTAIPARVTLGV
TTLLTMTAQSAGINSQLPPVSYIKAIDVWIGACMTFIFCALLEFALVNHI
ANAGTTEWNDISKRVDLISRALFPVLFFVFNILYWSRFGH
Ligand information
Ligand IDGLU
InChIInChI=1S/C5H9NO4/c6-3(5(9)10)1-2-4(7)8/h3H,1-2,6H2,(H,7,8)(H,9,10)/t3-/m0/s1
InChIKeyWHUUTDBJXJRKMK-VKHMYHEASA-N
SMILES
SoftwareSMILES
ACDLabs 12.01O=C(O)C(N)CCC(=O)O
OpenEye OEToolkits 1.7.0C(CC(=O)O)C(C(=O)O)N
OpenEye OEToolkits 1.7.0C(CC(=O)O)[C@@H](C(=O)O)N
CACTVS 3.370N[C@@H](CCC(O)=O)C(O)=O
CACTVS 3.370N[CH](CCC(O)=O)C(O)=O
FormulaC5 H9 N O4
NameGLUTAMIC ACID
ChEMBLCHEMBL575060
DrugBankDB00142
ZINCZINC000001482113
PDB chain3rif Chain E Residue 401 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB3rif Principles of activation and permeation in an anion-selective Cys-loop receptor.
Resolution3.345 Å
Binding residue
(original residue number in PDB)		R37 R56 S121
Binding residue
(residue number reindexed from 1)		R37 R56 S121
Annotation score4
Gene Ontology
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UnboundLocalError		Python 3.6.8: /usr/bin/python3
Sat Mar 1 02:06:14 2025

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /var/www/html/BioLiP/pdb.cgi in <module>()
   1435     title=pdb2title(pdbid)
   1436     if bs.startswith("BS"):
=> 1437         pubmed,uniprot=display_interaction(pdbid,asym_id,bs,title)
   1438     else:
   1439         if lig3:
pubmed = '', uniprot = '', display_interaction = <function display_interaction>, pdbid = '3rif', asym_id = 'A', bs = 'BS04', title = 'Principles of activation and permeation in an anion-selective Cys-loop receptor.'
 /var/www/html/BioLiP/pdb.cgi in display_interaction(pdbid='3rif', asym_id='A', bs='BS04', title='Principles of activation and permeation in an anion-selective Cys-loop receptor.')
   1295         display_ec(ec,csaOrig,csaRenu)
   1296     if go:
=> 1297         display_go(go,uniprot,pdbid,asym_id)
   1298     return pubmed,uniprot
   1299 
global display_go = <function display_go>, go = '0004888,0005216,0005230,0006811,0016020,0034220', uniprot = '', pdbid = '3rif', asym_id = 'A'
 /var/www/html/BioLiP/pdb.cgi in display_go(go='0004888,0005216,0005230,0006811,0016020,0034220', uniprot='', pdbid='3rif', asym_id='A')
    480         '''.replace("$namespace_link",namespace_link
    481           ).replace("$namespace",namespace
=>  482           ).replace("$uniprot",u
    483         ))
    484         for l,(term,name) in enumerate(go2aspect[Aspect]):
u undefined

UnboundLocalError: local variable 'u' referenced before assignment
      args = ("local variable 'u' referenced before assignment",)
      with_traceback = <built-in method with_traceback of UnboundLocalError object>