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2ovk

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(New page: 200px<br /><applet load="2ovk" size="450" color="white" frame="true" align="right" spinBox="true" caption="2ovk, resolution 2.60&Aring;" /> '''Crystal structure of...)
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[[Image:2ovk.jpg|left|200px]]<br /><applet load="2ovk" size="450" color="white" frame="true" align="right" spinBox="true"
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#REDIRECT [[3i5g]] This PDB entry is obsolete and replaced by 3i5g
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caption="2ovk, resolution 2.60&Aring;" />
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'''Crystal structure of Rigor-like Squid Myosin S1'''<br />
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==Overview==
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Unlike processive cellular motors such as myosin V, whose structure has, recently been determined in a "rigor-like" conformation, myosin II from, contracting muscle filaments necessarily spends most of its time detached, from actin. By using squid and sea scallop sources, however, we have now, obtained similar rigor-like atomic structures for muscle myosin heads, (S1). The significance of the hallmark closed actin-binding cleft in these, crystal structures is supported here by actin/S1-binding studies. These, structures reveal how different duty ratios, and hence cellular functions, of the myosin isoforms may be accounted for, in part, on the basis of, detailed differences in interdomain contacts. Moreover, the rigor-like, position of switch II turns out to be unique for myosin V. The overall, arrangements of subdomains in the motor are relatively conserved in each, of the known contractile states, and we explore qualitatively the, energetics of these states.
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==About this Structure==
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2OVK is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Loligo_plei Loligo plei] and [http://en.wikipedia.org/wiki/Todarodes_pacificus Todarodes pacificus] with CA and MLI as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2OVK OCA].
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==Reference==
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Rigor-like Structures from Muscle Myosins Reveal Key Mechanical Elements in the Transduction Pathways of This Allosteric Motor., Yang Y, Gourinath S, Kovacs M, Nyitray L, Reutzel R, Himmel DM, O'neall-Hennessey E, Reshetnikova L, Szent-Gyorgyi AG, Brown JH, Cohen C, Structure. 2007 May;15(5):553-64. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17502101 17502101]
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[[Category: Loligo plei]]
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[[Category: Protein complex]]
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[[Category: Todarodes pacificus]]
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[[Category: Yang, Y.T.]]
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[[Category: CA]]
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[[Category: MLI]]
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[[Category: muscle myosin]]
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[[Category: rigor-like]]
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[[Category: squid]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Wed Nov 21 13:19:33 2007''
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Current revision

  1. REDIRECT 3i5g This PDB entry is obsolete and replaced by 3i5g

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