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Structure of PDB 7nsp Chain O

Receptor sequence

>7nspO (length=116) Species: 562 (Escherichia coli)

DKKSARIRRATRARRKLQELGATRLVVHRTPRHIYAQVIAPNGSEVLVAA
STVEKAIAEQLKYTGNKDAAAAVGKAVAERALEKGIKDVSFDRSGFQYHG
RVQALADAAREAGLQF

3D structure

• PDB: 7nsp Structural and mechanistic basis for translation inhibition by macrolide and ketolide antibiotics.
• Chain: O
• Resolution: 3.5 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	rna	O	R9 R10 T12 R13 K17 F92 R94 Y99 R111 F117	R8 R9 T11 R12 K16 F91 R93 Y98 R110 F116
BS02	rna	O	K3 R15 H29 R30 T31 P32 R33 H34 Y36 G44 S45 E46 V54 Y64 N67 Q98 H100 G101 R102	K2 R14 H28 R29 T30 P31 R32 H33 Y35 G43 S44 E45 V53 Y63 N66 Q97 H99 G100 R101

Gene Ontology

--> -->

UnboundLocalError

Python 3.6.8: /usr/bin/python3 Tue May 13 04:18:23 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>()

   1709                 pubmed=display_regular_ligand(pdbid,asym_id,lig3,ligIdx,title)

   1710         else:

=> 1711             pubmed,uniprot=display_protein_receptor(pdbid,asym_id,title)

   1712     

   1713     uniprot_line=''

pubmed = '', uniprot = '', display_protein_receptor = <function display_protein_receptor>, pdbid = '7nsp', asym_id = 'O', title = 'Structural and mechanistic basis for translation inhibition by macrolide and ketolide antibiotics.'

 /var/www/html/BioLiP/pdb.cgi in display_protein_receptor(pdbid='7nsp', asym_id='O', title='Structural and mechanistic basis for translation inhibition by macrolide and ketolide antibiotics.')

    843 

    844     if go:

=>  845         display_go(go,uniprot,pdbid,asym_id)

    846     return pubmed,uniprot

    847 

global display_go = <function display_go>, go = '0003735,0005840,0006412', uniprot = '', pdbid = '7nsp', asym_id = 'O'

 /var/www/html/BioLiP/pdb.cgi in display_go(go='0003735,0005840,0006412', uniprot='', pdbid='7nsp', asym_id='O')

    484         '''.replace("$namespace_link",namespace_link

    485           ).replace("$namespace",namespace

=>  486           ).replace("$uniprot",u

    487         ))

    488         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>