Structure of PDB 6kgx Chain o4

Receptor sequence
>6kgxo4 (length=212) Species: 35688 (Porphyridium purpureum) [Search protein sequence]
AKPPSYSSVDSLRPARVSRMDADWATIYEQVRRQVMGNAYVMEGEAPDID
VAFSQLKGGNLTVREFVRAVGKSASYRTRFMEAKSSYNFVLLNFKHFLGR
APTQEEVSTHIQILATSGLEAEIDSYIDSDEYKALFGDHVVPYVVYRGTY
LSSERFNRMVKANPGGATSDKAKSNLNMIATVAADLPTDAIDVMRGLPSP
ITSETLAFGTAY
3D structure
PDB6kgx Structural basis of energy transfer in Porphyridium purpureum phycobilisome.
Chaino4
Resolution2.8 Å
3D
structure
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Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 PEB o4 S61 V62 T202 Y203 E207 S8 V9 T149 Y150 E154
BS02 PEB o4 S107 Q108 S54 Q55
BS03 PEB o4 S139 S161 I164 S86 S108 I111
BS04 PEB o4 Y93 D223 N228 Y40 D170 N175
BS05 PEB o4 A243 I244 M247 A190 I191 M194
Gene Ontology
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UnboundLocalError		Python 3.6.8: /usr/bin/python3
Mon Apr 28 04:35:37 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>()
   1443                 pubmed=display_regular_ligand(pdbid,asym_id,lig3,ligIdx,title)
   1444         else:
=> 1445             pubmed,uniprot=display_protein_receptor(pdbid,asym_id,title)
   1446     
   1447     uniprot_line=''
pubmed = '', uniprot = '', display_protein_receptor = <function display_protein_receptor>, pdbid = '6kgx', asym_id = 'o4', title = 'Structural basis of energy transfer in Porphyridium purpureum phycobilisome.'
 /var/www/html/BioLiP/pdb.cgi in display_protein_receptor(pdbid='6kgx', asym_id='o4', title='Structural basis of energy transfer in Porphyridium purpureum phycobilisome.')
    839 
    840     if go:
=>  841         display_go(go,uniprot,pdbid,asym_id)
    842     return pubmed,uniprot
    843 
global display_go = <function display_go>, go = '0015979,0030089', uniprot = '', pdbid = '6kgx', asym_id = 'o4'
 /var/www/html/BioLiP/pdb.cgi in display_go(go='0015979,0030089', uniprot='', pdbid='6kgx', asym_id='o4')
    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>