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1zui

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[[Image:1zui.gif|left|200px]]
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{{STRUCTURE_1zui| PDB=1zui | SCENE= }}
{{STRUCTURE_1zui| PDB=1zui | SCENE= }}
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'''Structural Basis for Shikimate-binding Specificity of Helicobacter pylori Shikimate Kinase'''
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===Structural Basis for Shikimate-binding Specificity of Helicobacter pylori Shikimate Kinase===
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==Overview==
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Shikimate kinase (EC 2.7.1.71) catalyzes the specific phosphorylation of the 3-hydroxyl group of shikimic acid in the presence of ATP. As the fifth key step in the shikimate pathway for aromatic amino acid biosynthesis in bacteria, fungi, and plants, but not mammals, shikimate kinase represents an attractive target for the development of new antimicrobial agents, herbicides, and antiparasitic agents. Here, we report the 1.8-Angstroms crystal structure of Helicobacter pylori shikimate kinase (HpSK). The crystal structure shows a three-layer alpha/beta fold consisting of a central sheet of five parallel beta-strands flanked by seven alpha-helices. An HpSK-shikimate-PO(4) complex was also determined and refined to 2.3 Angstroms, revealing induced-fit movement from an open to a closed form on substrate binding. Shikimate is located above a short 3(10) helix formed by a strictly conserved motif (GGGXV) after beta(3). Moreover, several highly conserved charged residues including Asp33 (in a conserved DT/SD motif), Arg57, and Arg132 (interacting with shikimate) are identified, guiding the development of novel inhibitors of shikimate kinase.
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(as it appears on PubMed at http://www.pubmed.gov), where 16291688 is the PubMed ID number.
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{{ABSTRACT_PUBMED_16291688}}
==About this Structure==
==About this Structure==
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[[Category: Wang, W C.]]
[[Category: Wang, W C.]]
[[Category: Alpha-beta protein]]
[[Category: Alpha-beta protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 18:05:28 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 17:25:20 2008''

Revision as of 14:25, 28 July 2008

Image:1zui.png

Template:STRUCTURE 1zui

Structural Basis for Shikimate-binding Specificity of Helicobacter pylori Shikimate Kinase

Template:ABSTRACT PUBMED 16291688

About this Structure

1ZUI is a Single protein structure of sequence from Helicobacter pylori. Full crystallographic information is available from OCA.

Reference

Structural basis for shikimate-binding specificity of Helicobacter pylori shikimate kinase., Cheng WC, Chang YN, Wang WC, J Bacteriol. 2005 Dec;187(23):8156-63. PMID:16291688

Page seeded by OCA on Mon Jul 28 17:25:20 2008

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