Structure of PDB 6xaj Chain A

Receptor sequence

>6xajA (length=391) Species: 1463854 (Streptomyces sp. NRRL F-5053)

TATLTYPFHDWSQELSPRYAQLRASDAPVCPVVSEGTGDPLWLVTRYATA
VKLLEDSRFSSEAAQASGAPRQEPVELRAPGTRGDAIAMLREASVLADGL
GPRAVRRHQGWINDLAETLMSELASREGTFDLAADFVEPLSSALVSRTLL
GELSADERDLLAHCADTGLRFCGVTHEEQVHAFTQMHEFFLEHARRLAGT
PGEHLLKLIAEAGPLSDEALAEAGSLLVVAGFPTSSGFLCGALLTLLRHP
DAVQELHAHPERVPSAVEELLRYTPLSTGSVKRMATEDLEIDGVRIKAGE
VVMVSLEAVNHDPDAFEDPDVFRPGREGPMHFGFGRGRHFCPGNRLARCV
IEATVRAVARRPGLRLAVAPEEISWHEGLFFRRPRAIPATW

3D structure

• PDB: 6xaj Structure and Function of NzeB, a Versatile C-C and C-N Bond-Forming Diketopiperazine Dimerase.
• Chain: A
• Resolution: 1.498 Å

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	HEM	A	I90 L155 A240 G241 T244 F248 V291 R293 G343 F344 H349 C351 P352 G353	I87 L149 A230 G231 T234 F238 V281 R283 G333 F334 H339 C341 P342 G343

Gene Ontology

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UnboundLocalError

Python 3.6.8: /usr/bin/python3 Fri Feb 21 21:54:05 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 = '6xaj', asym_id = 'A', title = 'Structure and Function of NzeB, a Versatile C-C and C-N Bond-Forming Diketopiperazine Dimerase.'

 /var/www/html/BioLiP/pdb.cgi in display_protein_receptor(pdbid='6xaj', asym_id='A', title='Structure and Function of NzeB, a Versatile C-C and C-N Bond-Forming Diketopiperazine Dimerase.')

    839 

    840     if go:

=>  841         display_go(go,uniprot,pdbid,asym_id)

    842     return pubmed,uniprot

    843 

global display_go = <function display_go>, go = '0004497,0005506,0016705,0020037', uniprot = '', pdbid = '6xaj', asym_id = 'A'

 /var/www/html/BioLiP/pdb.cgi in display_go(go='0004497,0005506,0016705,0020037', uniprot='', pdbid='6xaj', 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>