Cited by 309Steroid Chemistry and BiochemistrySexual Differentiation and DisordersEstrogen and related hormone effects

17beta-hydroxysteroid dehydrogenase (HSD)/17-ketosteroid reductase (KSR) family; nomenclature and main characteristics of the 17HSD/KSR enzymes

Open access
Peltoketo, H, Luu-The, V, Simard, J, Adamski, J·1999·Journal of Molecular Endocrinology

Abstract

A number of enzymes possessing 17beta-hydroxysteroid dehydrogenase/17-ketosteroid reductase (17HSD/KSR) activities have been described and cloned, but their nomenclature needs specification. To clarify the present situation, descriptions of the eight cloned 17HSD/KSRs are given and guidelines for the classification of novel 17HSD/KSR enzymes are presented.

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Registry

Crossref · 10.1677/jme.0.0230001

Cites

93 of 93 references verified0 citation errors · 0 not checkable

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  • There are at least 14 human 17βHSD isoforms; these isoforms vary widely in size, structure, substrate specificity, cofactor utilization, and physiological functions.

    “There are at least 14 human 17␤HSD isoforms; these isoforms vary widely in size, structure, substrate specificity, cofactor utilization, and physiological functions (502).”

    From The Molecular Biology, Biochemistry, and Physiology of Human Steroidogenesis and Its Disorders (2011) · cites this paper as [502]

    The Introduction (page unavailable) says that eight 17HSD/KSR types had been cloned, not that there were at least 14 human isoforms. The Similarity/Diversity section (page unavailable) supports differences in structure, substrate specificity and cofactor specificity, but the cited paper does not support the claimed count. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • The widespread tissue distribution and broad substrate specificity of 17βHSD2 suggests that its role in human physiology is to protect tissues from excessive exposure to active steroid hormones by oxidation to inactive 17-ketosteroids.

    “The widespread tissue distribution and broad substrate specificity of 17␤HSD2 suggests that its role in human physiology is to protect tissues from excessive exposure to active steroid hormones by oxidation to inactive 17-ketosteroids (502).”

    From The Molecular Biology, Biochemistry, and Physiology of Human Steroidogenesis and Its Disorders (2011) · cites this paper as [502]

    The 17HSD/KSR2 section says the enzyme is widely expressed, converts several active steroids to less active forms, and has been suggested to protect tissues from excessive steroid action. It describes the products as “less active,” not inactive, so that part of the claim overstates the source. No page number is available in our copy. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Estrone undergoes 16α-hydroxylation and HSD17B1 catalyzed reduction, while 17β-estradiol only requires 16α-hydroxylation to yield estriol.

    “Estrone undergoes 16α-hydroxylation and HSD17B1 catalyzed reduction, while 17β-estradiol only requires 16α-hydroxylation [[311], [312], [313], [314]].”

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Cites

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8 of the 101 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. [57]57. Maxwell MM, Nearing J & Aziz N 1995 Ke 6 gene. Sequence and organization and aberrant regulation in murine polycystic kidney disease. Journal of Biological Chemistry 270 25213-25219.
  2. [64]64. Mustonen MVJ, Poutanen MH, Isomaa VV, Vihko PT & Vihko RK 1997b Cloning of mouse 17 -hydroxysteroid dehydrogenase type 2, and analysing expression of the mRNAs for types 1, 2, 3, 4 and 5 in mouse embryos and adult tissues. Biochemical Journal 325 199-205.

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Authors
Peltoketo, H., Luu-The, V, Simard, J., & Adamski, J.
Affiliations
  • University of Oulu (FI)
  • Centre hospitalier de l'Université Laval (CA)
  • Helmholtz Munich (DE)
Venue
Journal of Molecular Endocrinology
Published
1999-08-01
Volume
23
Issue
1
Pages
1-11
ISSN
  • 0952-5041 (ISSN-L)
  • 1479-6813
OpenAlex
W2116838171
Cited by
302
References
101
Citations by year
2026: 2 · 2025: 4 · 2024: 4 · 2023: 5 · 2022: 3 · 2021: 2 · 2020: 7 · 2019: 4 · 2018: 3 · 2017: 5 · 2016: 8 · 2015: 11 · 2014: 9 · 2013: 6 · 2012: 8
FWCI
1.68
Type
journal article
Language
en
Open access
Locations
  • Journal of Molecular Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • World Health Organization
  • Deutsche Forschungsgemeinschaft
  • Medical Research Council Canada
  • Medical Research Council
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Steroid Chemistry and Biochemistry
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
Keywords
17β-hydroxysteroid dehydrogenase, enzyme nomenclature, enzyme classification, steroid metabolism
MeSH terms
Animals, Humans, Terminology as Topic, 17-Hydroxysteroid Dehydrogenases

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