1kt9: Difference between revisions

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[[Image:1kt9.jpg|left|200px]]
{{Seed}}
[[Image:1kt9.png|left|200px]]


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{{STRUCTURE_1kt9|  PDB=1kt9  |  SCENE=  }}  
{{STRUCTURE_1kt9|  PDB=1kt9  |  SCENE=  }}  


'''Crystal Structure of C. elegans Ap4A Hydrolase'''
===Crystal Structure of C. elegans Ap4A Hydrolase===




==Overview==
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The crystal structure of C. elegans Ap(4)A hydrolase has been determined for the free enzyme and a binary complex at 2.0 A and 1.8 A, respectively. Ap(4)A hydrolase has a key role in regulating the intracellular Ap(4)A levels and hence potentially the cellular response to metabolic stress and/or differentiation and apoptosis via the Ap(3)A/Ap(4)A ratio. The structures reveal that the enzyme has the mixed alpha/beta fold of the Nudix family and also show how the enzyme binds and locates its substrate with respect to the catalytic machinery of the Nudix motif. These results suggest how the enzyme can catalyze the hydrolysis of a range of related dinucleoside tetraphosphate, but not triphosphate, compounds through precise orientation of key elements of the substrate.
The line below this paragraph, {{ABSTRACT_PUBMED_11937063}}, adds the Publication Abstract to the page
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{{ABSTRACT_PUBMED_11937063}}


==About this Structure==
==About this Structure==
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[[Category: Crystal structure]]
[[Category: Crystal structure]]
[[Category: Nudix]]
[[Category: Nudix]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 23:08:46 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 2 10:57:17 2008''
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