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steroid 5-alpha reductase
EntityQ143333· pop 18· linked from 363 articles

steroid 5-alpha reductase

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Also known as 3-oxo-5-alpha-steroid 4-dehydrogenase, 5-alpha reductase, 3-oxo-5-alpha-steroid_4-DH, IPR016636, delta4-3-ketosteroid5alpha-oxidoreductase, 3-keto-delta4-steroid-5alpha-reductase, 3-oxo-5alpha-steroid:(acceptor) delta4-oxidoreductase, steroid delta4-5alpha-reductase

thumb|235px|right|class=skin-invert-image|Steroidogenesis, showing both actions of 5α-reductase at bottom center.

Key facts

Enzyme.Name
3-Oxo-5α-steroid 4-dehydrogenase
Enzyme.EC_number
1.3.1.22
Enzyme.CAS_number
9036-43-5
Enzyme.GO_code
0003865
Enzyme.image
File:PbSDR5A steroid 5-alpha-reductase PDB=7c83.png
Enzyme.caption
Bacterial SDR5A in complex with NADPH and monoolein
Enzyme.image_size
150
Protein.Name
Steroid-5α-reductase 2
Protein.HGNCid
11285
Protein.Symbol
SRD5A2
Protein.EntrezGene
6716
Protein.OMIM
607306
Protein.RefSeq
NM_000348
Protein.UniProt
P31213
Protein.ECnumber
1.3.1.22
Protein.Chromosome
2
Protein.Arm
p
Protein.Band
23

via Wikipedia infobox

Wikidata facts

Instance of
protein family
Show 1 more fact
EC enzyme number
1.3.99.5
Sources (1)

via Wikidata · CC0

~17 min read

Encyclopedic overview

21 sections
Contents
  • Production and activity
  • Distribution with age
  • Substrates
  • Testosterone
  • List of conversions
  • Structure
  • Inhibition
  • Finasteride
  • Dutasteride
  • Congenital deficiencies
  • 5α-Reductase 1
  • 5α-Reductase 2
  • 5α-Reductase 3
  • Nervous system
  • Affective disorders
  • Hypothalamic–pituitary–adrenal axis dysfunction
  • Nomenclature
  • See also
  • References
  • Further reading
  • External links

thumb|235px|right|class=skin-invert-image|Steroidogenesis, showing both actions of 5α-reductase at bottom center.

5α-Reductases, also known as 3-oxo-5α-steroid 4-dehydrogenases, are enzymes involved in steroid metabolism. They participate in three metabolic pathways: bile acid biosynthesis, androgen and estrogen metabolism. There are three isozymes of 5α-reductase encoded by the genes SRD5A1, SRD5A2, and SRD5A3.

Excerpted from Wikipedia’s “steroid 5-alpha reductase” article, available under the CC BY-SA 4.0 licence.

Gallery (10)