Biology:AKR1C3

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Short description: Protein-coding gene in the species Homo sapiens


A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example


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.[1][2][3]

Function

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 D2, prostaglandin H2, and phenanthrenequinone, and the oxidation of prostaglandin F to prostaglandin D2.[3] It is also capable of metabolizing estrogen and progesterone.[4]

AKR1C3 may play an important role in the development 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.[3]

Pathology

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.[5]

References

  1. "Substrate specificity, gene structure, and tissue-specific distribution of multiple human 3 alpha-hydroxysteroid dehydrogenases". The Journal of Biological Chemistry 270 (34): 20162–8. Aug 1995. doi:10.1074/jbc.270.34.20162. PMID 7650035. 
  2. "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. Nov 1998. doi:10.1093/oxfordjournals.jbchem.a022211. PMID 9792917. 
  3. 3.0 3.1 3.2 "Entrez Gene: AKR1C3 aldo-keto reductase family 1, member C3 (3-alpha hydroxysteroid dehydrogenase, type II)". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=8644. 
  4. Theisen, J. Graham; Sundaram, Viji; Filchak, Mary S.; Chorich, Lynn P.; Sullivan, Megan E.; Knight, James; Kim, Hyung-Goo; Layman, Lawrence C. (27 December 2019). "The Use of Whole Exome Sequencing in a Cohort of Transgender Individuals to Identify Rare Genetic Variants". Scientific Reports 9 (1): Table 4. doi:10.1038/s41598-019-53500-y. PMID 31882810. Bibcode2019NatSR...920099T. 
  5. "AKR1C3 overexpression may serve as a promising biomarker for prostate cancer progression". Diagnostic Pathology 9 (1): 42. 2014. doi:10.1186/1746-1596-9-42. PMID 24571686. 

External links

Further reading