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Literature summary for 1.1.1.64 extracted from

  • Latif, S.A.; Shen, M.; Ge, R.S.; Sottas, C.M.; Hardy, M.P.; Morris, D.J.
    Role of 11beta-OH-C(19) and C(21) steroids in the coupling of 11beta-HSD1 and 17beta-HSD3 in regulation of testosterone biosynthesis in rat Leydig cells (2011), Steroids, 76, 682-689.
    View publication on PubMed
Search for more literature for 1.1.1.64

Localization

Localization Comment Organism GeneOntology No. Textmining
cytoplasm
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 Rattus norvegicus 5737
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Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
androstenedione + NADPH + H+ Rattus norvegicus the two reactions 11beta-HSD1-dehydrogenase, EC 1.1.1.146, and 17beta-HSD3, EC 1.1.1.64, which utilize NADPH are competing for NADPH from the same cofactor pool. 11beta-HSD1-dehydrogenase serves as a NADPH-regenerating system that is tightly coupled in regulating 17beta-HSD3 reaction synthesizing testosterone. A cycle can exist whereby the NADPH produced by 11beta-HSD1 dehydrogenase can drive the reductase activity of 17beta-HSD3 and the NADP+ produced by 17beta-HSD3 and other enzymes involved in testosterone biosynthesis can drive the dehydrogenase activity of 11beta-HSD1 testosterone + NADP+ i.e. 4-androsten-17beta-ol-3-one ?

Organism

Organism UniProt Comment Textmining
Rattus norvegicus O54939
-
-

Source Tissue

Source Tissue Comment Organism Textmining
Leydig cell
-
 Rattus norvegicus
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Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
androstenedione + NADPH + H+
-
 Rattus norvegicus testosterone + NADP+ i.e. 4-androsten-17-ol-3-one ?
androstenedione + NADPH + H+ the two reactions 11beta-HSD1-dehydrogenase, EC 1.1.1.146, and 17beta-HSD3, EC 1.1.1.64, which utilize NADPH are competing for NADPH from the same cofactor pool. 11beta-HSD1-dehydrogenase serves as a NADPH-regenerating system that is tightly coupled in regulating 17beta-HSD3 reaction synthesizing testosterone. A cycle can exist whereby the NADPH produced by 11beta-HSD1 dehydrogenase can drive the reductase activity of 17beta-HSD3 and the NADP+ produced by 17beta-HSD3 and other enzymes involved in testosterone biosynthesis can drive the dehydrogenase activity of 11beta-HSD1 Rattus norvegicus testosterone + NADP+ i.e. 4-androsten-17beta-ol-3-one ?

General Information

General Information Comment Organism
physiological function the two reactions 11beta-HSD1-dehydrogenase, EC 1.1.1.146, and 17beta-HSD3, EC 1.1.1.64, which utilize NADPH are competing for NADPH from the same cofactor pool. 11beta-HSD1-dehydrogenase serves as a NADPH-regenerating system that is tightly coupled in regulating 17beta-HSD3 reaction synthesizing testosterone. A cycle can exist whereby the NADPH produced by 11beta-HSD1 dehydrogenase can drive the reductase activity of 17beta-HSD3 and the NADP+ produced by 17beta-HSD3 and other enzymes involved in testosterone biosynthesis can drive the dehydrogenase activity of 11beta-HSD1 Rattus norvegicus