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Gene Symbol |
HSD3B2 |
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Aliases |
HSD3B, HSDB, SDR11E2 |
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Entrez Gene ID |
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Gene Name |
Hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 2 |
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Chromosomal Location |
1p12 |
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HGNC ID |
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Summary |
The protein encoded by this gene is a bifunctional enzyme that catalyzes the oxidative conversion of delta(5)-ene-3-beta-hydroxy steroid, and the oxidative conversion of ketosteroids. It plays a crucial role in the biosynthesis of all classes of hormonal steroids. This gene is predominantly expressed in the adrenals and the gonads. Mutations in this gene are associated with 3-beta-hydroxysteroid dehydrogenase, type II, deficiency. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Oct 2009]
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RefSeq DNA |
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RefSeq mRNA |
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e!Ensembl
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SNPs
SNP |
SNP ID |
Associated disease |
References |
G129R |
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Precocious Pubarche |
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P222Q |
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Precocious Pubarche |
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G250V |
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Precocious Pubarche |
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L236S |
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Premature pubarche |
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T259M |
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Precocious Pubarche |
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Protein Information |
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Protein Name |
3 beta-hydroxysteroid dehydrogenase/Delta 5-->4-isomerase type 2, 3 beta-HSD type II, 3 beta-hydroxysteroid dehydrogenase type II, delta 5-delta 4-isomerase type II, 3 beta-HSD type II, 3 beta-hydroxysteroid dehydrogenase/Delta 5-->4-isomerase type II, 3-beta-HSD II, 3-beta-HSD adrenal and gonadal type, 3-beta-hydroxy-5-ene steroid dehydrogenase, 3-beta-hydroxy-Delta(5)-steroid dehydrogenase, delta 5-delta 4-isomerase type II, progesterone reductase, short chain dehydrogenase/reductase family 11E, member 2 |
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Function |
3-beta-HSD is a bifunctional enzyme, that catalyzes the oxidative conversion of Delta(5)-ene-3-beta-hydroxy steroid, and the oxidative conversion of ketosteroids. The 3-beta-HSD enzymatic system plays a crucial role in the biosynthesis of all classes of hormonal steroids |
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UniProt |
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References |
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PubMed ID |
Disease |
SNP/Mutation |
Study population |
Ethnicity |
Age of study population |
Type of sample |
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Precocious Pubarche |
T259M, G129R, P222Q |
Girls:21,Boys:1 ( six female children with premature pubarche, 12 hirsute females, and one boy with salt-wasting and ambiguous genitalia.) |
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9 months to 26 yr of age |
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Precocious Pubarche |
G250V |
Girls:1 |
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7 months |
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Premature pubarche |
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Total patients- Test: 5 (girls- 4 and boys- 1), Control: 18 (girls- 10 and boys- 8) |
Caucasian, Puerto Rican, African- American |
4 to 9 yrs |
Blood |
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Premature pubarche |
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Total Patients- 13 (11 girls and 2 boys), ontrol subjects- 18 (10 girls and 8 boys) |
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Mean age- 4 years (1 month to 6.7 years; 1 boy was close to 9 years) |
Blood |
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Premature pubarche |
L236S |
Total Patients- 40 children (PP: 6 boys and 34 girls), 29 adolescent girls (hyperandrogenism), Controls- Women:15 (white) |
Black, White, Asian-white, Black-white |
Group 1 - 4.6-10.75 years, Group 2 - 10.4-18 years |
Blood |
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