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3BUV

Crystal structure of human Delta(4)-3-ketosteroid 5-beta-reductase in complex with NADP and HEPES. Resolution: 1.35 A.

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(B, A)
3-oxo-5-beta-steroid 4-dehydrogenasepolymer32637427.92UniProt (P51857)
Pfam (PF00248)
Homo sapiens (human)Delta(4)-3-ketosteroid 5-beta-reductase, Aldo-keto reductase family 1 member D1
2C, F
(B, A)
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATEnon-polymer743.42Chemie (NAP)
3D, E
(B)
GLYCEROLnon-polymer92.12Chemie (GOL)
4G
(A)
4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACIDnon-polymer238.31Chemie (EPE)
5H, I
(B, A)
waterwater18.0556Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight74855.8
Non-Polymers*Number of molecules5
Total formula weight1909.3
All*Total formula weight76765.1
*Water molecules are not included.

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PDB entries from 2025-07-30

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