1krm

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{{STRUCTURE_1krm| PDB=1krm | SCENE= }}
{{STRUCTURE_1krm| PDB=1krm | SCENE= }}
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'''Crystal structure of bovine adenosine deaminase complexed with 6-hydroxyl-1,6-dihydropurine riboside'''
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===Crystal structure of bovine adenosine deaminase complexed with 6-hydroxyl-1,6-dihydropurine riboside===
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==Overview==
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The crystal structure of adenosine deaminase (ADA) from bovine intestine complexed with a transition-state analogue, 6-hydroxy-1,6-dihydropurine riboside (HDPR), was solved at 2.5 A resolution by the molecular-replacement method using a homology model based on the crystal structure of mouse ADA. The final refinement converged to a crystallographic R factor of 20.7%. The C(alpha) backbone of bovine ADA is mostly superimposable on that of mouse ADA, although mouse ADA itself did not lead to a solution by molecular replacement. HDPR tightly interacts with ADA by means of six hydrogen bonds and is entirely enclosed within the active site. The lid of the envelope consists of two components: one contains two leucine residues, Leu55 and Leu59, and the other contains the backbone atoms Asp182 and Glu183. The C(delta) atoms of the two leucine residues are 3.5 A from the respective N atoms of the backbone. A weak interaction, similar to CH-pi binding, might make it possible to open the lid. Taking account of the movement and observation of this structural feature, the aim is to design novel ADA inhibitors.
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{{ABSTRACT_PUBMED_12554940}}
==About this Structure==
==About this Structure==
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[[Category: Kinoshita, T.]]
[[Category: Kinoshita, T.]]
[[Category: Adenosine deaminase]]
[[Category: Adenosine deaminase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 23:05:14 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 2 10:50:49 2008''

Revision as of 07:50, 2 July 2008

Image:1krm.png

Template:STRUCTURE 1krm

Crystal structure of bovine adenosine deaminase complexed with 6-hydroxyl-1,6-dihydropurine riboside

Template:ABSTRACT PUBMED 12554940

About this Structure

1KRM is a Single protein structure of sequence from Bos taurus. Full crystallographic information is available from OCA.

Reference

Structure of bovine adenosine deaminase complexed with 6-hydroxy-1,6-dihydropurine riboside., Kinoshita T, Nishio N, Nakanishi I, Sato A, Fujii T, Acta Crystallogr D Biol Crystallogr. 2003 Feb;59(Pt 2):299-303. Epub 2003, Jan 23. PMID:12554940

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