Details of the Target
General Information of Target
| Target ID | LDTP02707 | |||||
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| Target Name | 3 beta-hydroxysteroid dehydrogenase/Delta 5-->4-isomerase type 1 (HSD3B1) | |||||
| Gene Name | HSD3B1 | |||||
| Gene ID | 3283 | |||||
| Synonyms |
3BH; HSDB3A; 3 beta-hydroxysteroid dehydrogenase/Delta 5-->4-isomerase type 1; 3 beta-hydroxysteroid dehydrogenase/Delta 5-->4-isomerase type I; 3-beta-HSD I; 3-beta-hydroxy-5-ene steroid dehydrogenase; 3-beta-hydroxy-Delta(5)-steroid dehydrogenase; EC 1.1.1.145; 3-beta-hydroxysteroid 3-dehydrogenase; EC 1.1.1.270; Delta-5-3-ketosteroid isomerase; Dihydrotestosterone oxidoreductase; EC 1.1.1.210; Steroid Delta-isomerase; EC 5.3.3.1; Trophoblast antigen FDO161G
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| 3D Structure | ||||||
| Sequence |
MTGWSCLVTGAGGFLGQRIIRLLVKEKELKEIRVLDKAFGPELREEFSKLQNKTKLTVLE
GDILDEPFLKRACQDVSVIIHTACIIDVFGVTHRESIMNVNVKGTQLLLEACVQASVPVF IYTSSIEVAGPNSYKEIIQNGHEEEPLENTWPAPYPHSKKLAEKAVLAANGWNLKNGGTL YTCALRPMYIYGEGSRFLSASINEALNNNGILSSVGKFSTVNPVYVGNVAWAHILALRAL QDPKKAPSIRGQFYYISDDTPHQSYDNLNYTLSKEFGLRLDSRWSFPLSLMYWIGFLLEI VSFLLRPIYTYRPPFNRHIVTLSNSVFTFSYKKAQRDLAYKPLYSWEEAKQKTVEWVGSL VDRHKETLKSKTQ |
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| Target Bioclass |
Enzyme
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| Family |
3-beta-HSD family
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| Subcellular location |
Endoplasmic reticulum membrane
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| Function |
A bifunctional enzyme responsible for the oxidation and isomerization of 3beta-hydroxy-Delta(5)-steroid precursors to 3-oxo-Delta(4)-steroids, an essential step in steroid hormone biosynthesis. Specifically catalyzes the conversion of pregnenolone to progesterone, 17alpha-hydroxypregnenolone to 17alpha-hydroxyprogesterone, dehydroepiandrosterone (DHEA) to 4-androstenedione, and androstenediol to testosterone. Additionally, catalyzes the interconversion between 3beta-hydroxy and 3-oxo-5alpha-androstane steroids controlling the bioavalability of the active forms. Specifically converts dihydrotestosterone to its inactive form 5alpha-androstanediol, that does not bind androgen receptor/AR. Also converts androstanedione, a precursor of testosterone and estrone, to epiandrosterone. Expected to use NAD(+) as preferred electron donor for the 3beta-hydroxy-steroid dehydrogenase activity and NADPH for the 3-ketosteroid reductase activity (Probable).
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| Uniprot ID | ||||||
| Ensemble ID | ||||||
| HGNC ID | ||||||
| ChEMBL ID | ||||||
Probe(s) Labeling This Target
ABPP Probe
| Probe name | Structure | Binding Site(Ratio) | Interaction ID | Ref | |
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DBIA Probe Info |
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C183(1.95) | LDD2282 | [1] | |
PAL-AfBPP Probe
| Probe name | Structure | Binding Site(Ratio) | Interaction ID | Ref | |
|---|---|---|---|---|---|
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STS-1 Probe Info |
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1.16 | LDD0137 | [2] | |
Competitor(s) Related to This Target
The Interaction Atlas With This Target
The Protein(s) Related To This Target
Enzyme
Transporter and channel
Other
| Protein name | Family | Uniprot ID | |||
|---|---|---|---|---|---|
| Gelsolin (GSN) | Villin/gelsolin family | P06396 | |||
The Drug(s) Related To This Target
Approved
Investigative
| Drug Name | Drug Type | External ID | |||
|---|---|---|---|---|---|
| Hydrocortisone Aceponate | . | DB14538 | |||
Discontinued
| Drug Name | Drug Type | External ID | |||
|---|---|---|---|---|---|
| Androstenedione | Small molecular drug | DB01536 | |||
References


