1k4u

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{{STRUCTURE_1k4u| PDB=1k4u | SCENE= }}
{{STRUCTURE_1k4u| PDB=1k4u | SCENE= }}
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'''Solution structure of the C-terminal SH3 domain of p67phox complexed with the C-terminal tail region of p47phox'''
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===Solution structure of the C-terminal SH3 domain of p67phox complexed with the C-terminal tail region of p47phox===
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==Overview==
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The basic function of the Src homology 3 (SH3) domain is considered to be binding to proline-rich sequences containing a PxxP motif. Recently, many SH3 domains, including those from Grb2 and Pex13p, were reported to bind sequences lacking a PxxP motif. We report here that the 22 residue peptide lacking a PxxP motif, derived from p47(phox), binds to the C-terminal SH3 domain from p67(phox). We applied the NMR cross-saturation method to locate the interaction sites for the non-PxxP peptides on their cognate SH3 domains from p67(phox), Grb2 and Pex13p. The binding site of the Grb2 SH3 partially overlapped the conventional PxxP-binding site, whereas those of p67(phox) and Pex13p SH3s are located in different surface regions. The non-PxxP peptide from p47(phox) binds to the p67(phox) SH3 more tightly when it extends to the N-terminus to include a typical PxxP motif, which enabled the structure determination of the complex, to reveal that the non-PxxP peptide segment interacted with the p67(phox) SH3 in a compact helix-turn-helix structure (PDB entry 1K4U).
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(as it appears on PubMed at http://www.pubmed.gov), where 12169629 is the PubMed ID number.
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{{ABSTRACT_PUBMED_12169629}}
==Disease==
==Disease==
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==About this Structure==
==About this Structure==
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1K4U 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=1K4U OCA].
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1K4U 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=1K4U OCA].
==Reference==
==Reference==
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[[Category: P67phox]]
[[Category: P67phox]]
[[Category: Sh3-peptide complex]]
[[Category: Sh3-peptide complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 22:18:33 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 2 09:46:42 2008''

Revision as of 06:46, 2 July 2008

Template:STRUCTURE 1k4u

Contents

Solution structure of the C-terminal SH3 domain of p67phox complexed with the C-terminal tail region of p47phox

Template:ABSTRACT PUBMED 12169629

Disease

Known disease associated with this structure: Chronic granulomatous disease due to deficiency of NCF-2 OMIM:[608515], Chronic granulomatous disease due to deficiency of NCF-1 OMIM:[608512]

About this Structure

1K4U is a Protein complex structure of sequences from Homo sapiens. Full experimental information is available from OCA.

Reference

Diverse recognition of non-PxxP peptide ligands by the SH3 domains from p67(phox), Grb2 and Pex13p., Kami K, Takeya R, Sumimoto H, Kohda D, EMBO J. 2002 Aug 15;21(16):4268-76. PMID:12169629

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