Structure of PDB 1buq Chain B

Receptor sequence
>1buqB (length=125) Species: 285 (Comamonas testosteroni) [Search protein sequence]
MNTPEHMTAVVQRYVAALNAGDLDGIVALFADDATVEDPVGSEPRSGTAA
IREFFANSLKLPLAVELTQEVRAVANEAAFAFTVSFEFQGRKTVVAPIDH
FRFNGAGKVVSMRALFGEKNIHAGA
3D structure
PDB1buq Solution structure of Delta 5-3-ketosteroid isomerase complexed with the steroid 19-nortestosterone hemisuccinate.
ChainB
ResolutionN/A
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) Y214 D238 A296 D299
Catalytic site (residue number reindexed from 1) Y14 D38 A96 D99
Enzyme Commision number 5.3.3.1: steroid Delta-isomerase.
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 NTH B D238 S258 F286 F288 D38 S58 F86 F88
Gene Ontology
Molecular Function
GO:0004769 steroid delta-isomerase activity
GO:0016853 isomerase activity
Biological Process
GO:0008202 steroid metabolic process

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Molecular Function
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Biological Process
External links
PDB RCSB:1buq, PDBe:1buq, PDBj:1buq
PDBsum1buq
PubMed9778345
UniProtP00947|SDIS_COMTE Steroid Delta-isomerase (Gene Name=ksi)

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