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Gene

HSD3B1

hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 1

Summary

Cytogenetic location
1p12
Coordinates
Chromosome 1: 119,507,210–119,515,054 (GRCh38)
Exons
4 exons across 7.8 kb
Protein
373 amino acids
Also known as
SDR11E1
Previous symbols
HSDB3, HSD3B
MANE Select transcript
ENST00000369413.8NM_000862.3
Locus type
gene with protein product

Reference genomeGRCh38

Positions on gene and variant pages follow this choice, in this browser.

Curated reports relevant to this gene

No Genome Test report reads HSD3B1 yet. The test sequences your whole genome, so your data includes it all the same.

How HSD3B1 is laid out

  • Coding sequence
  • Untranslated region
  • Intron
  • Direction of transcription
  • Stretches short reads find hard
Chromosome 1, with a bracket where HSD3B1 sits. HSD3B1 and 9 genes near it on chromosome 1, from 119,011,132 to 120,011,131.Chromosome 11p12p36.33p36.32p36.31p36.23p36.22p36.21p36.13p36.12p36.11p35.3p35.2p35.1p34.3p34.2p34.1p33p32.3p32.2p32.1p31.3p31.2p31.1p22.3p22.2p22.1p21.3p21.2p21.1p13.3p13.2p13.1p12p11.2p11.1q11q12q21.1q21.2q21.3q22q23.1q23.2q23.3q24.1q24.2q24.3q25.1q25.2q25.3q31.1q31.2q31.3q32.1q32.2q32.3q41q42.11q42.12q42.13q42.2q42.3q43q44119.2 Mb119.4 Mb119.6 Mb119.8 Mb120 MbWARS2: 119,029,164–119,140,679, reverse strandWARS2HAO2: 119,368,727–119,394,258, forward strandHAO2HSD3B2: 119,413,725–119,453,802, forward strandHSD3B2HSD3B1: 119,507,210–119,515,054, forward strandHSD3B1ZNF697: 119,619,377–119,648,454, reverse strandZNF697PHGDH: 119,648,411–119,744,227, forward strandPHGDHHMGCS2: 119,747,979–119,769,092, reverse strandHMGCS2REG4: 119,794,017–119,811,580, reverse strandREG4ADAM30: 119,893,533–119,896,515, reverse strandADAM30NOTCH2: 119,909,256–120,100,779, reverse strandNOTCH2Diagram of HSD3B1: 4 exons on the forward strand of chromosome 1Exon 1: 119,507,210–119,507,262, 53 basesExon 2: 119,507,392–119,507,621, 230 basesExon 3: 119,511,503–119,511,667, 165 basesExon 4: 119,513,834–119,515,054, 1,221 bases12345′3′

Exons of the gene's MANE Select transcript (release v1.5), from NCBI and EMBL-EBI, on the GRCh38 reference genome.

Chromosome bands from UCSC's GRCh38 ideogram (2022-10-29).

Nearby genes from Ensembl release 116, on GRCh38.

Exons make up 1.7 kb of the gene's 7.8 kb; 1,122 of those bases code for the protein.

Where this comes from

  • HGNC: the gene's symbol, name, other symbols and location.
  • MANE Select v1.5, from NCBI and EMBL-EBI: the transcript, its exons and coding sequence.

Cite this page

APA

Dante Labs. (n.d.). HSD3B1 gene: hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 1. Retrieved 16 October 2026, from https://dantelabs.com/genes/hsd3b1

Vancouver

Dante Labs. HSD3B1 gene: hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 1 [Internet]. [cited 16 October 2026]. Available from: https://dantelabs.com/genes/hsd3b1

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