1y5m: Difference between revisions

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[[Image:1y5m.gif|left|200px]]
{{Seed}}
[[Image:1y5m.png|left|200px]]


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{{STRUCTURE_1y5m|  PDB=1y5m  |  SCENE=  }}  
{{STRUCTURE_1y5m|  PDB=1y5m  |  SCENE=  }}  


'''The crystal structure of murine 11b-hydroxysteroid dehydrogenase: an important therapeutic target for diabetes'''
===The crystal structure of murine 11b-hydroxysteroid dehydrogenase: an important therapeutic target for diabetes===




==Overview==
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11Beta-hydroxysteroid dehydrogenase type 1 (11beta-HSD1) catalyzes the conversion of 11-dehydrocorticosterone to its active form corticosterone in rodents (or cortisone to cortisol in humans). The reductive reaction of the 11-keto to 11-hydroxyl is the pivotal switch in the activation of glucocorticoids. An excess of active glucocorticoids has been shown to play a key role in metabolic disorders such as diabetes and obesity. Therefore, 11beta-HSD1 represents an important therapeutic target for the treatment of these diseases. To facilitate the iterative design of inhibitors, we have crystallized and determined the three-dimensional structures of a binary complex of murine 11beta-HSD1 with NADP(H) to a resolution of 2.3 A and of a ternary complex with corticosterone and NADP(H) to a resolution of 3.0 A by X-ray crystallography. The enzyme forms a homodimer in the crystal and has a fold similar to those of other members of the family of short chain steroid dehydrogenases/reductases (SDRs). The structure shows a novel folding feature at the C-terminus of the enzyme. The C-terminal helix insertions provide additional dimer contacts, exert an influence on the conformations of the substrate binding loops, and present hydrophobic regions for potential membrane attachment. The structure also reveals how 11beta-HSD1 achieves its selectivity for its substrate.
The line below this paragraph, {{ABSTRACT_PUBMED_15865440}}, adds the Publication Abstract to the page
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{{ABSTRACT_PUBMED_15865440}}


==About this Structure==
==About this Structure==
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[[Category: Zhang, J.]]
[[Category: Zhang, J.]]
[[Category: Rossmann fold]]
[[Category: Rossmann fold]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 15:54:14 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 13:18:50 2008''

Revision as of 10:18, 29 July 2008

File:1y5m.png

Template:STRUCTURE 1y5m

The crystal structure of murine 11b-hydroxysteroid dehydrogenase: an important therapeutic target for diabetes

Template:ABSTRACT PUBMED 15865440

About this Structure

1Y5M is a Single protein structure of sequence from Mus musculus. Full crystallographic information is available from OCA.

Reference

Crystal structure of murine 11 beta-hydroxysteroid dehydrogenase 1: an important therapeutic target for diabetes., Zhang J, Osslund TD, Plant MH, Clogston CL, Nybo RE, Xiong F, Delaney JM, Jordan SR, Biochemistry. 2005 May 10;44(18):6948-57. PMID:15865440

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