Structure of PDB 1equ Chain A

Receptor sequence
>1equA (length=284) Species: 9606 (Homo sapiens) [Search protein sequence]
ARTVVLITGCSSGIGLHLAVRLASDPSQSFKVYATLRDLKTQGRLWEAAR
ALACPPGSLETLQLDVRDSKSVAAARERVTEGRVDVLVCNAGLGLLGPLE
ALGEDAVASVLDVNVVGTVRMLQAFLPDMKRRGSGRVLVTGSVGGLMGLP
FNDVYCASKFALEGLCESLAVLLLPFGVHLSLIECGPVHTAFMEKVLGSP
EEVLDRTDIHTFHRFYQYLAHSKQVFREAAQNPEEVAEVFLTALRAPKPT
LRYFTTERFLPLLRMRLDDPSGSNYVTAMHREVF
3D structure
PDB1equ Structure of the ternary complex of human 17beta-hydroxysteroid dehydrogenase type 1 with 3-hydroxyestra-1,3,5,7-tetraen-17-one (equilin) and NADP+.
ChainA
Resolution3.0 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 1.1.1.51: 3(or 17)beta-hydroxysteroid dehydrogenase.
1.1.1.62: 17beta-estradiol 17-dehydrogenase.
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 NAP A S11 S12 G13 I14 R37 D65 V66 N90 A91 G92 L93 T140 G141 S142 Y155 V188 T190 A191 F192 S11 S12 G13 I14 R37 D65 V66 N90 A91 G92 L93 T140 G141 S142 Y155 V188 T190 A191 F192
BS02 EQI A S142 V143 L149 Y155 Y218 R258 S142 V143 L149 Y155 Y218 R258
Gene Ontology
Molecular Function
GO:0003824 catalytic activity
GO:0004303 estradiol 17-beta-dehydrogenase [NAD(P)+] activity
GO:0005496 steroid binding
GO:0005515 protein binding
GO:0016491 oxidoreductase activity
GO:0030283 testosterone dehydrogenase [NAD(P)+] activity
GO:0036094 small molecule binding
GO:0042803 protein homodimerization activity
GO:0047035 testosterone dehydrogenase (NAD+) activity
GO:0047045 testosterone 17-beta-dehydrogenase (NADP+) activity
GO:0050661 NADP binding
GO:0070401 NADP+ binding
GO:0072582 17-beta-hydroxysteroid dehydrogenase (NADP+) activity
GO:1903924 estradiol binding
Biological Process
GO:0006629 lipid metabolic process
GO:0006694 steroid biosynthetic process
GO:0006703 estrogen biosynthetic process
GO:0007040 lysosome organization
GO:0007519 skeletal muscle tissue development
GO:0008210 estrogen metabolic process
GO:0010467 gene expression
GO:0060348 bone development
GO:0060612 adipose tissue development
GO:0061370 testosterone biosynthetic process
GO:0071248 cellular response to metal ion
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1equ, PDBe:1equ, PDBj:1equ
PDBsum1equ
PubMed9927655
UniProtP14061|DHB1_HUMAN 17-beta-hydroxysteroid dehydrogenase type 1 (Gene Name=HSD17B1)

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