2e30: Difference between revisions

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[[Image:2e30.jpg|left|200px]]
{{Seed}}
[[Image:2e30.png|left|200px]]


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{{STRUCTURE_2e30|  PDB=2e30  |  SCENE=  }}  
{{STRUCTURE_2e30|  PDB=2e30  |  SCENE=  }}  


'''Solution structure of the cytoplasmic region of Na+/H+ exchanger 1 complexed with essential cofactor calcineurin B homologous protein 1'''
===Solution structure of the cytoplasmic region of Na+/H+ exchanger 1 complexed with essential cofactor calcineurin B homologous protein 1===




==Overview==
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Na+/H+ exchanger 1 (NHE1) regulates intracellular pH, Na+ content, and cell volume. Calcineurin B homologous protein 1 (CHP1) serves as an essential cofactor that facilitates NHE1 exchange activity under physiological conditions by direct binding to the cytoplasmic juxtamembrane region of NHE1. Here we describe the solution structure of the cytoplasmic juxtamembrane region of NHE1 complexed with CHP1. The region of NHE1 forms an amphipathic helix, which is induced by CHP1 binding, and CHP1 possesses a large hydrophobic cleft formed by EF-hand helices. The apolar side of the NHE1 helix participates in extensive hydrophobic interactions with the cleft of CHP1. We suggest that helix formation of the cytoplasmic region of NHE1 by CHP1 is a prerequisite for generating the active form of NHE1. The molecular recognition detailed in this study also provides novel insight into the target binding mechanism of EF-hand proteins.
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(as it appears on PubMed at http://www.pubmed.gov), where 17050540 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17050540}}


==About this Structure==
==About this Structure==
2E30 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2E30 OCA].  
2E30 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2E30 OCA].  


==Reference==
==Reference==
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[[Category: Nmr]]
[[Category: Nmr]]
[[Category: Transporter]]
[[Category: Transporter]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jun 18 12:14:13 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 20:33:49 2008''
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