2o98

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{{STRUCTURE_2o98| PDB=2o98 | SCENE= }}
{{STRUCTURE_2o98| PDB=2o98 | SCENE= }}
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'''Structure of the 14-3-3 / H+-ATPase plant complex'''
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===Structure of the 14-3-3 / H+-ATPase plant complex===
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==Overview==
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Regulatory 14-3-3 proteins activate the plant plasma membrane H(+)-ATPase by binding to its C-terminal autoinhibitory domain. This interaction requires phosphorylation of a C-terminal, mode III, recognition motif as well as an adjacent span of approximately 50 amino acids. Here we report the X-ray crystal structure of 14-3-3 in complex with the entire binding motif, revealing a previously unidentified mode of interaction. A 14-3-3 dimer simultaneously binds two H(+)-ATPase peptides, each of which forms a loop within the typical 14-3-3 binding groove and therefore exits from the center of the dimer. Several H(+)-ATPase mutants support this structure determination. Accordingly, 14-3-3 binding could result in H(+)-ATPase oligomerization. Indeed, by using single-particle electron cryomicroscopy, the 3D reconstruction of the purified H(+)-ATPase/14-3-3 complex demonstrates a hexameric arrangement. Fitting of 14-3-3 and H(+)-ATPase atomic structures into the 3D reconstruction map suggests the spatial arrangement of the holocomplex.
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(as it appears on PubMed at http://www.pubmed.gov), where 17289589 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17289589}}
==About this Structure==
==About this Structure==
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[[Category: Protein binding]]
[[Category: Protein binding]]
[[Category: Regulation]]
[[Category: Regulation]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jun 11 10:54:36 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 11:37:48 2008''

Revision as of 08:37, 29 July 2008

Image:2o98.png

Template:STRUCTURE 2o98

Structure of the 14-3-3 / H+-ATPase plant complex

Template:ABSTRACT PUBMED 17289589

About this Structure

2O98 is a Protein complex structure of sequences from Nicotiana plumbaginifolia and Nicotiana tabacum. Full crystallographic information is available from OCA.

Reference

Structure of a 14-3-3 coordinated hexamer of the plant plasma membrane H+ -ATPase by combining X-ray crystallography and electron cryomicroscopy., Ottmann C, Marco S, Jaspert N, Marcon C, Schauer N, Weyand M, Vandermeeren C, Duby G, Boutry M, Wittinghofer A, Rigaud JL, Oecking C, Mol Cell. 2007 Feb 9;25(3):427-40. PMID:17289589

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