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Summary

Description
English: *Enzymes, their cellular location, substrates and products in human steroidogenesis.

Shown also is the major classes of steroid hormones: progestagens, mineralocorticoids, glucocorticoids, androgens and estrogens. However, they partly overlap, e.g. mineralocorticoids and glucocorticoids.

  • White circles indicate changes in molecular structure compared with precursors. For more information on interpretation of molecular structures, see structural formula.
  • Arrows are shown as unidirectional to indicate the usual net directions, but technically all biochemical reactions are considered bidirectional.

HSD: Hydroxysteroid dehydrogenase

References:

  • Boron WF, Boulpaep EL (2003) Medical Physiology: A Cellular And Molecular Approach, Elsevier/Saunders, pp. page 1,300 ISBN: 1-4160-2328-3.
  • For the absence of conversion of corticosterone to cortisol: Steroid hormone biosynthesis Reference pathway (KO). KEGG: Kyoto Encyclopedia of Genes and Genomes. Kyoto University Bioinformatics Center. (1 November 2013).
There is no appreciable conversion of corticosterone to cortisol in the adrenal cortex as 21-OH steroids are poor substrates for 17-alpha hydroxylase.

Further reading:

  • Hanukoglu I (1992). "Steroidogenic enzymes: structure, function, and role in regulation of steroid hormone biosynthesis". The Journal of Steroid Biochemistry and Molecular Biology 43 (8): 779–804. DOI:10.1016/0960-0760(92)90307-5. PMID 22217824.
  • Payne AH, Hales DB (2004). "Overview of steroidogenic enzymes in the pathway from cholesterol to active steroid hormones". Endocrine Reviews 25 (6): 947–70. DOI:10.1210/er.2003-0030. PMID 15583024.

See also:

Polski: Enzymy biorące udział w steroidogenezie.

Uwagi: W miejscu gdzie stereochemia nie jest wyświetlana, jest taka sama jak dla Cholesterol lub w pokazanej powyżej grupie.

HSD: Dehydrogenaza hydroksysteroidu
Русский: Ферменты, участвующие в стероидогенезе человека, с указанием субстратов и продуктов, а также локализации их активности. Происходящие изменения в структуре молекул отмечены белыми кружочками. По сборнику "Медицинская физиология" (Walter F. Boron, Emile L. Boulpaep, 2003 год).
日本語: この図はヒトのステロイドホルモン生成における酵素と酵素が存在する細胞器官、基質ならびに生成物の全体図である。またこの図は(コレステロールから)プロゲステロン、鉱質コルチコイド、糖質コルチコイド、そしてアンドロゲンおよびエストロゲンに至る主要なステロイドを記述している。

図に示すとおりそれぞれ(生合成の過程で)オーバーラップするものである。 図中、白い円で囲んだところは基質と比較した分子構造の変化した箇所を示す。

なお、HSD は、ヒドロキシステロイドデヒドロゲナーゼを表す。
Date
Source Häggström M, Richfield D (2014). "Diagram of the pathways of human steroidogenesis". WikiJournal of Medicine 1 (1). DOI:10.15347/wjm/2014.005. ISSN 20024436.
Author

David Richfield (Slashme) and Mikael Häggström. Derived from previous version by Hoffmeier and Settersr.

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Evolution

A short flashback of some milestones the evolution of the picture, demonstrating the power of free licensing where anybody can contribute to making things better.

1. (March 2007) Previous image by Stannered.
4. (August 2008) Vector (.svg) version by Slashme.
2. (July 2007) Molecular structures added by Hoffmeier and Settersr.
5. (March 2009) Expansion, grouping, addition of enzyme localization, numbering of cholesterol and coloring by Mikael Häggström.
3. (November 2007) Organization and addition of enzymes by Mikael Häggström.

Licensing

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The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

Captions

A schematic diagram showing the chemicals, enzymes, and locations of the human steroidogenesis pathways.

Items portrayed in this file

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28 March 2009

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589c3a5c90f5b91cbf4801dfd14cb2b515a1ce31

256,760 byte

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1,245 pixel

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(newest | oldest) View ( | older 10) (10 | 20 | 50 | 100 | 250 | 500)
Date/TimeThumbnailDimensionsUserComment
14:48, 31 March 2009Thumbnail for version as of 14:48, 31 March 20091,245 × 1,105 (113 KB)Mikael HäggströmMarked structural changes in molecules
09:52, 30 March 2009Thumbnail for version as of 09:52, 30 March 20091,245 × 1,105 (101 KB)Mikael Häggströmadded border lines
09:27, 29 March 2009Thumbnail for version as of 09:27, 29 March 20091,245 × 1,105 (97 KB)Mikael Häggströmandrostanediol -> androstenediol
06:22, 29 March 2009Thumbnail for version as of 06:22, 29 March 20091,254 × 1,129 (99 KB)Mikael HäggströmProgestins --> Progestagens (these are not synthetic)
14:33, 28 March 2009Thumbnail for version as of 14:33, 28 March 20091,254 × 1,129 (100 KB)Mikael HäggströmSpelling in androgens
10:36, 28 March 2009Thumbnail for version as of 10:36, 28 March 20091,244 × 1,119 (100 KB)Mikael Häggströmdefault text size
09:43, 28 March 2009Thumbnail for version as of 09:43, 28 March 20091,244 × 1,119 (90 KB)Mikael HäggströmColoured
17:17, 19 November 2008Thumbnail for version as of 17:17, 19 November 20081,210 × 1,150 (69 KB)Mikael Häggström{{Information |Description= |Source= |Date= |Author= |Permission= |other_versions= }}
16:35, 3 August 2008Thumbnail for version as of 16:35, 3 August 20081,210 × 1,080 (53 KB)SlashmeMove aldosterone to bottom for better visibility.
16:13, 3 August 2008Thumbnail for version as of 16:13, 3 August 20081,475 × 1,080 (55 KB)Slashme{{Information |Description={{en|1=Enzymes involved in en:steroidogenesis. Where stereochemistry is not shown, it is the same as for Cholesterol or for any functional groups shown for the first time. HSD: Hydroxysteroid dehydrogenase }} |Source=Self
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