1ng2: Difference between revisions

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{{STRUCTURE_1ng2|  PDB=1ng2  |  SCENE=  }}  
{{STRUCTURE_1ng2|  PDB=1ng2  |  SCENE=  }}  


'''Structure of autoinhibited p47phox'''
===Structure of autoinhibited p47phox===




==Overview==
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The multi-subunit NADPH oxidase complex plays a crucial role in host defense against microbial infection through the production of reactive oxygen species. Activation of the NADPH oxidase requires the targeting of a cytoplasmic p40-p47-p67(phox) complex to the membrane bound heterodimeric p22-gp91(phox) flavocytochrome. This interaction is prevented in the resting state due to an auto-inhibited conformation of p47(phox). The X-ray structure of the auto-inhibited form of p47(phox) reveals that tandem SH3 domains function together to maintain the cytoplasmic complex in an inactive form. Further structural and biochemical data show that phosphorylation of p47(phox) activates a molecular switch that relieves the inhibitory intramolecular interaction. This permits p47(phox) to interact with the cytoplasmic tail of p22(phox) and initiate formation of the active, membrane bound enzyme complex.
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==Disease==
==Disease==
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[[Category: P47phox]]
[[Category: P47phox]]
[[Category: Sh3 domain]]
[[Category: Sh3 domain]]
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Revision as of 21:02, 27 July 2008

File:1ng2.png

Template:STRUCTURE 1ng2

Structure of autoinhibited p47phoxStructure of autoinhibited p47phox

Template:ABSTRACT PUBMED 12732142

DiseaseDisease

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

About this StructureAbout this Structure

1NG2 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

ReferenceReference

Molecular basis of phosphorylation-induced activation of the NADPH oxidase., Groemping Y, Lapouge K, Smerdon SJ, Rittinger K, Cell. 2003 May 2;113(3):343-55. PMID:12732142

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