1w8j

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[[Image:1w8j.gif|left|200px]]
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{{Seed}}
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[[Image:1w8j.png|left|200px]]
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{{STRUCTURE_1w8j| PDB=1w8j | SCENE= }}
{{STRUCTURE_1w8j| PDB=1w8j | SCENE= }}
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'''CRYSTAL STRUCTURE OF MYOSIN V MOTOR DOMAIN-NUCLEOTIDE-FREE'''
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===CRYSTAL STRUCTURE OF MYOSIN V MOTOR DOMAIN-NUCLEOTIDE-FREE===
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==Overview==
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The molecular motor, myosin, undergoes conformational changes in order to convert chemical energy into force production. Based on kinetic and structural considerations, we assert that three crystal forms of the myosin V motor delineate the conformational changes that myosin motors undergo upon detachment from actin. First, a motor domain structure demonstrates that nucleotide-free myosin V adopts a specific state (rigor-like) that is not influenced by crystal packing. A second structure reveals an actomyosin state that favors rapid release of ADP, and differs from the rigor-like state by a P-loop rearrangement. Comparison of these structures with a third structure, a 2.0 angstroms resolution structure of the motor bound to an ATP analog, illuminates the structural features that provide communication between the actin interface and nucleotide-binding site. Paramount among these is a region we name the transducer, which is composed of the seven-stranded beta-sheet and associated loops and linkers. Reminiscent of the beta-sheet distortion of the F1-ATPase, sequential distortion of this transducer region likely controls sequential release of products from the nucleotide pocket during force generation.
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The line below this paragraph, {{ABSTRACT_PUBMED_15510214}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 15510214 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15510214}}
==About this Structure==
==About this Structure==
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[[Category: Myosin v]]
[[Category: Myosin v]]
[[Category: Unconventional myosin]]
[[Category: Unconventional myosin]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 13:18:12 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 15:36:32 2008''

Revision as of 12:36, 28 July 2008

Image:1w8j.png

Template:STRUCTURE 1w8j

CRYSTAL STRUCTURE OF MYOSIN V MOTOR DOMAIN-NUCLEOTIDE-FREE

Template:ABSTRACT PUBMED 15510214

About this Structure

1W8J is a Single protein structure of sequence from Gallus gallus. Full crystallographic information is available from OCA.

Reference

Three myosin V structures delineate essential features of chemo-mechanical transduction., Coureux PD, Sweeney HL, Houdusse A, EMBO J. 2004 Nov 24;23(23):4527-37. Epub 2004 Oct 28. PMID:15510214

Page seeded by OCA on Mon Jul 28 15:36:32 2008

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