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Protein AKR1C3 PDB 1ry0.png
Available structures
PDBOrtholog search: PDBe RCSB
AliasesAKR1C3, DD3, DDX, HA1753, HAKRB, HAKRe, HSD17B5, PGFS, hluPGFS, aldo-keto reductase family 1, member C3, aldo-keto reductase family 1 member C3
External IDsOMIM: 603966 MGI: 2145420 HomoloGene: 128661 GeneCards: AKR1C3
EC number1.3.1.20
Gene location (Human)
Chromosome 10 (human)
Chr.Chromosome 10 (human)[1]
Chromosome 10 (human)
Genomic location for AKR1C3
Genomic location for AKR1C3
Band10p15.1Start5,035,354 bp[1]
End5,107,686 bp[1]
RNA expression pattern
PBB GE AKR1C3 209160 at fs.png

PBB GE AKR1C1 211653 x at fs.png
More reference expression data
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC)Chr 10: 5.04 – 5.11 MbChr 13: 4.13 – 4.15 Mb
PubMed search[3][4]
View/Edit HumanView/Edit Mouse

Aldo-keto reductase family 1 member C3 (AKR1C3), also known as 17β-hydroxysteroid dehydrogenase type 5 (17β-HSD5, HSD17B5) is a key steroidogenic enzyme that in humans is encoded by the AKR1C3 gene.[5][6][7]


This gene encodes a member of the aldo/keto reductase superfamily, which consists of more than 40 known enzymes and proteins. These enzymes catalyze the conversion of aldehydes and ketones to their corresponding alcohols by utilizing NADH and/or NADPH as cofactors. The enzymes display overlapping but distinct substrate specificity. This enzyme catalyzes the reduction of prostaglandin (PG) D2, PGH2 and phenanthrenequinone (PQ), and the oxidation of 9alpha,11beta-PGF2 to PGD2. It may play an important role in the pathogenesis of allergic diseases such as asthma, and may also have a role in controlling cell growth and/or differentiation. This gene shares high sequence identity with three other gene members and is clustered with those three genes at chromosome 10p15-p14.[7]


AKR1C3 is overexpressed in prostate cancer (PCa) and is associated with the development of castration-resistant prostate cancer (CRPC). In addition, AKR1C3 overexpression may serve as a promising biomarker for prostate cancer progression.[8]


  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000196139 - Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000021214 - Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Khanna M, Qin KN, Wang RW, Cheng KC (Aug 1995). "Substrate specificity, gene structure, and tissue-specific distribution of multiple human 3 alpha-hydroxysteroid dehydrogenases". The Journal of Biological Chemistry. 270 (34): 20162–8. doi:10.1074/jbc.270.34.20162. PMID 7650035.
  6. ^ Matsuura K, Shiraishi H, Hara A, Sato K, Deyashiki Y, Ninomiya M, Sakai S (Nov 1998). "Identification of a principal mRNA species for human 3alpha-hydroxysteroid dehydrogenase isoform (AKR1C3) that exhibits high prostaglandin D2 11-ketoreductase activity". Journal of Biochemistry. 124 (5): 940–6. doi:10.1093/oxfordjournals.jbchem.a022211. PMID 9792917.
  7. ^ a b "Entrez Gene: AKR1C3 aldo-keto reductase family 1, member C3 (3-alpha hydroxysteroid dehydrogenase, type II)".
  8. ^ Tian Y, Zhao L, Zhang H, Liu X, Zhao L, Zhao X, Li Y, Li J (2014). "AKR1C3 overexpression may serve as a promising biomarker for prostate cancer progression". Diagnostic Pathology. 9 (1): 42. doi:10.1186/1746-1596-9-42. PMC 3939640. PMID 24571686.

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