2rkk

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{{STRUCTURE_2rkk| PDB=2rkk | SCENE= }}
{{STRUCTURE_2rkk| PDB=2rkk | SCENE= }}
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'''Crystal Structure of S.cerevisiae Vta1 N-terminal domain'''
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===Crystal Structure of S.cerevisiae Vta1 N-terminal domain===
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==Overview==
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The MVB pathway plays essential roles in several eukaryotic cellular processes. Proper function of the MVB pathway requires reversible membrane association of the ESCRTs, a process catalyzed by Vps4 ATPase. Vta1 regulates the Vps4 activity, but its mechanism of action was poorly understood. We report the high-resolution crystal structures of the Did2- and Vps60-binding N-terminal domain and the Vps4-binding C-terminal domain of S. cerevisiae Vta1. The C-terminal domain also mediates Vta1 dimerization and both subunits are required for its function as a Vps4 regulator. Emerging from our analysis is a mechanism of regulation by Vta1 in which the C-terminal domain stabilizes the ATP-dependent double ring assembly of Vps4. In addition, the MIT motif-containing N-terminal domain, projected by a long disordered linker, allows contact between the Vps4 disassembly machinery and the accessory ESCRT-III proteins. This provides an additional level of regulation and coordination for ESCRT-III assembly and disassembly.
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{{ABSTRACT_PUBMED_18194651}}
==About this Structure==
==About this Structure==
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[[Category: Protein transport]]
[[Category: Protein transport]]
[[Category: Transport]]
[[Category: Transport]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 17:05:25 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 15:13:06 2008''

Revision as of 12:13, 28 July 2008

Image:2rkk.png

Template:STRUCTURE 2rkk

Crystal Structure of S.cerevisiae Vta1 N-terminal domain

Template:ABSTRACT PUBMED 18194651

About this Structure

2RKK is a Single protein structure of sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.

Reference

Structural basis of Vta1 function in the multivesicular body sorting pathway., Xiao J, Xia H, Zhou J, Azmi IF, Davies BA, Katzmann DJ, Xu Z, Dev Cell. 2008 Jan;14(1):37-49. PMID:18194651

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