1xu9

Crystal Structure of the Interface Closed Conformation of 11b-hydroxysteroid dehydrogenase isozyme 1Crystal Structure of the Interface Closed Conformation of 11b-hydroxysteroid dehydrogenase isozyme 1

DiseaseDisease

[DHI1_HUMAN] Defects in HSD11B1 are a cause of cortisone reductase deficiency (CRD) [MIM:604931]. In CRD, activation of cortisone to cortisol does not occur, resulting in adrenocorticotropin-mediated androgen excess and a phenotype resembling polycystic ovary syndrome (PCOS).

FunctionFunction

[DHI1_HUMAN] Catalyzes reversibly the conversion of cortisol to the inactive metabolite cortisone. Catalyzes reversibly the conversion of 7-ketocholesterol to 7-beta-hydroxycholesterol. In intact cells, the reaction runs only in one direction, from 7-ketocholesterol to 7-beta-hydroxycholesterol (By similarity).

About this StructureAbout this Structure

1xu9 is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.

ReferenceReference

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↑ Hosfield DJ, Wu Y, Skene RJ, Hilgers M, Jennings A, Snell GP, Aertgeerts K. Conformational flexibility in crystal structures of human 11beta-hydroxysteroid dehydrogenase type I provide insights into glucocorticoid interconversion and enzyme regulation. J Biol Chem. 2005 Feb 11;280(6):4639-48. Epub 2004 Oct 28. PMID:15513927 doi:http://dx.doi.org/10.1074/jbc.M411104200

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OCA

[1] Hosfield DJ, Wu Y, Skene RJ, Hilgers M, Jennings A, Snell GP, Aertgeerts K. Conformational flexibility in crystal structures of human 11beta-hydroxysteroid dehydrogenase type I provide insights into glucocorticoid interconversion and enzyme regulation. J Biol Chem. 2005 Feb 11;280(6):4639-48. Epub 2004 Oct 28. PMID:15513927 doi:http://dx.doi.org/10.1074/jbc.M411104200

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