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1uky

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{{STRUCTURE_1uky| PDB=1uky | SCENE= }}
{{STRUCTURE_1uky| PDB=1uky | SCENE= }}
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'''SUBSTRATE SPECIFICITY AND ASSEMBLY OF CATALYTIC CENTER DERIVED FROM TWO STRUCTURES OF LIGATED URIDYLATE KINASE'''
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===SUBSTRATE SPECIFICITY AND ASSEMBLY OF CATALYTIC CENTER DERIVED FROM TWO STRUCTURES OF LIGATED URIDYLATE KINASE===
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==Overview==
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Two crystal structures of ligated uridylate kinase from Saccharomyces cerevisiae were determined by X-ray analyses. The ligands were ADP and AMP. Cocrystallization with ATP yielded crystals with ADP at the ATP site and a mixture of AMP and ADP at the NMP site. Cocrystallization with ADP gave rise to a distinct crystal type with ADP at the ATP site, but only AMP at the NMP site. In both cases, the substrates are kept in place by favorable crystal contacts. The structures have been refined to R-factors of 17.8% and 19.6% at resolutions of 2.1 A and 1.9 A, respectively. A comparison with the related cytosolic adenylate kinase from pig disclosed large induced-fit movements on substrate binding and the disassembly of the catalytic center in the absence of substrates. The relatively high side-activity of uridylate kinase for AMP is explained by the finding that the binding pocket is sized for an AMP, but constructed to bind UMP together with a water molecule.
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(as it appears on PubMed at http://www.pubmed.gov), where 7877173 is the PubMed ID number.
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{{ABSTRACT_PUBMED_7877173}}
==About this Structure==
==About this Structure==
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[[Category: Schulz, G E.]]
[[Category: Schulz, G E.]]
[[Category: Transferase]]
[[Category: Transferase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 11:22:17 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 18:42:25 2008''

Revision as of 15:42, 27 July 2008

Image:1uky.png

Template:STRUCTURE 1uky

SUBSTRATE SPECIFICITY AND ASSEMBLY OF CATALYTIC CENTER DERIVED FROM TWO STRUCTURES OF LIGATED URIDYLATE KINASE

Template:ABSTRACT PUBMED 7877173

About this Structure

1UKY is a Single protein structure of sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.

Reference

Substrate specificity and assembly of the catalytic center derived from two structures of ligated uridylate kinase., Muller-Dieckmann HJ, Schulz GE, J Mol Biol. 1995 Mar 3;246(4):522-30. PMID:7877173

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