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1usk

From Proteopedia

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[[Image:1usk.gif|left|200px]]
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{{STRUCTURE_1usk| PDB=1usk | SCENE= }}
{{STRUCTURE_1usk| PDB=1usk | SCENE= }}
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'''L-LEUCINE-BINDING PROTEIN WITH LEUCINE BOUND'''
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===L-LEUCINE-BINDING PROTEIN WITH LEUCINE BOUND===
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==Overview==
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The periplasmic leucine-binding protein is the primary receptor for the leucine transport system in Escherichia coli. We report here the structure of an open ligand-free form solved by molecular replacement and refined at 1.5-A resolution. In addition, two closed ligand-bound structures of the same protein are presented, a phenylalanine-bound form at 1.8 A and a leucine-bound structure at a nominal resolution of 2.4 A. These structures show the basis of this protein's ligand specificity, as well as illustrating the conformational changes that are associated with ligand binding. Comparison with earlier structures provides further information about solution conformations, as well as the different specificity of the closely related leucine/isoleucine/valine-binding protein.
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{{ABSTRACT_PUBMED_14672931}}
==About this Structure==
==About this Structure==
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[[Category: Transport protein]]
[[Category: Transport protein]]
[[Category: X-ray crystallography]]
[[Category: X-ray crystallography]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 11:37:46 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 23:11:33 2008''

Revision as of 20:11, 27 July 2008

Image:1usk.png

Template:STRUCTURE 1usk

L-LEUCINE-BINDING PROTEIN WITH LEUCINE BOUND

Template:ABSTRACT PUBMED 14672931

About this Structure

1USK is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.

Reference

X-ray structures of the leucine-binding protein illustrate conformational changes and the basis of ligand specificity., Magnusson U, Salopek-Sondi B, Luck LA, Mowbray SL, J Biol Chem. 2004 Mar 5;279(10):8747-52. Epub 2003 Dec 12. PMID:14672931

Page seeded by OCA on Sun Jul 27 23:11:33 2008

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