Structure of PDB 7xgn Chain A Binding Site BS01

Receptor Information
>7xgn Chain A (length=297) Species: 68260 (Streptomyces pyridomyceticus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
AEAWSPATDERLRAAGIDAEDARRVVVTALEEDLRYGADVTSDATVPADA
VTEAVVASRQPGVLAGLPVALAVLDLVTGGRFEVAECRADGDRLGPGDVA
LRVTAATRELLVAERTMLNLLCHLSGVATLTARWNDALAGTHCKVRDSRK
TLPGLRLLEKYAVRRGGGQNHRLGLGDAILIKDNHIVAGGSAGAALQAAR
AHTPGLPCEVEVTTLAELDEVLALGADEVMLDNFTVEQCVEAVRRRDAAR
TRTRLEASGGLTLDVAAAYARTGVDLLAVGALTHSAPALDLGLDFAP
Ligand information
Ligand IDNIO
InChIInChI=1S/C6H5NO2/c8-6(9)5-2-1-3-7-4-5/h1-4H,(H,8,9)
InChIKeyPVNIIMVLHYAWGP-UHFFFAOYSA-N
SMILES
SoftwareSMILES
ACDLabs 10.04O=C(O)c1cccnc1
OpenEye OEToolkits 1.5.0c1cc(cnc1)C(=O)O
CACTVS 3.341OC(=O)c1cccnc1
FormulaC6 H5 N O2
NameNICOTINIC ACID
ChEMBLCHEMBL573
DrugBankDB00627
ZINCZINC000000001795
PDB chain7xgn Chain A Residue 404 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB7xgn Bifunctional NadC Homologue PyrZ Catalyzes Nicotinic Acid Formation in Pyridomycin Biosynthesis.
Resolution2.6 Å
Binding residue
(original residue number in PDB)		S150 R151 H173 R174 L182 K184 M232
Binding residue
(residue number reindexed from 1)		S148 R149 H171 R172 L180 K182 M230
Annotation score2
Gene Ontology
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UnboundLocalError		Python 3.6.8: /usr/bin/python3
Sun Dec 1 14:11:24 2024

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 = '7xgn', asym_id = 'A', bs = 'BS01', title = 'Bifunctional NadC Homologue PyrZ Catalyzes Nicotinic Acid Formation in Pyridomycin Biosynthesis.'
 /var/www/html/BioLiP/pdb.cgi in display_interaction(pdbid='7xgn', asym_id='A', bs='BS01', title='Bifunctional NadC Homologue PyrZ Catalyzes Nicotinic Acid Formation in Pyridomycin Biosynthesis.')
   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 = '0004514,0009435,0016763', uniprot = '', pdbid = '7xgn', asym_id = 'A'
 /var/www/html/BioLiP/pdb.cgi in display_go(go='0004514,0009435,0016763', uniprot='', pdbid='7xgn', 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>