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| 11β-hydroxysteroid dehydrogenase type 1 ： ウィキペディア英語版 |
11β-hydroxysteroid dehydrogenase type 1
11β-hydroxysteroid dehydrogenase type 1, or 'cortisone reductase' is an NADPH-dependent enzyme highly expressed in key metabolic tissues including liver, adipose tissue, and the central nervous system. In these tissues, HSD11B1 reduces cortisone to the active hormone cortisol that activates glucocorticoid receptors.
== Function ==
The protein encoded by this gene is a microsomal enzyme that catalyzes the conversion of the stress hormone cortisol to the inactive metabolite cortisone. In addition, the encoded protein can catalyze the reverse reaction, the conversion of cortisone to cortisol. Too much cortisol can lead to central obesity, and a particular variation in this gene has been associated with obesity and insulin resistance in children. Two transcript variants encoding the same protein have been found for this gene.〔(【引用サイトリンク】 url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=3290 )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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