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Science 22 July 1994:
Vol. 265. no. 5171, pp. 531 - 533
DOI: 10.1126/science.8036496

Articles

Science, Vol 265, Issue 5171, 531-533
Copyright © 1994 by American Association for the Advancement of Science


articles

Interaction of Rac with p67phox and regulation of phagocytic NADPH oxidase activity

D Diekmann, A Abo, C Johnston, AW Segal, and A Hall

Medical Research Council Laboratory for Molecular Cell Biology, University College London, UK.

Rho and Rac, two members of the Ras superfamily of guanosine triphosphate (GTP)-binding proteins, regulate a variety of signal transduction pathways in eukaryotic cells. Upon stimulation of phagocytic cells, Rac enhances the activity of the enzyme nicotinamide adenine dinucleotide phosphate (reduced) (NADPH) oxidase, resulting in the production of superoxide radicals. Activation of the NADPH oxidase requires the assembly of a multimolecular complex at the plasma membrane consisting of two integral membrane proteins, gp91phox and p21phox, and two cytosolic proteins, p67phox and p47phox. Rac1 interacted directly with p67phox in a GTP-dependent manner. Modified forms of Rac with mutations in the effector site did not stimulate oxidase activity or bind to p67phox. Thus, p67phox appears to be the Rac effector protein in the NADPH oxidase complex.


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Identification of IQGAP as a Putative Target for the Small GTPases, Cdc42 and Rac1.
S. Kuroda, M. Fukata, K. Kobayashi, M. Nakafuku, N. Nomura, A. Iwamatsu, and K. Kaibuchi (1996)
J. Biol. Chem. 271, 23363-23367
   Abstract »    Full Text »    PDF »
NADPH Oxidase Activity Is Independent of p47phox in Vitro.
J. L. Freeman and J. D. Lambeth (1996)
J. Biol. Chem. 271, 22578-22582
   Abstract »    Full Text »    PDF »
Rac ``Insert Region'' Is a Novel Effector Region That Is Implicated in the Activation of NADPH Oxidase, but Not PAK65.
J. L. Freeman, A. Abo, and J. D. Lambeth (1996)
J. Biol. Chem. 271, 19794-19801
   Abstract »    Full Text »    PDF »
The Ras-related GTPase Rac1 Binds Tubulin.
A. Best, S. Ahmed, R. Kozma, and L. Lim (1996)
J. Biol. Chem. 271, 3756-3762
   Abstract »    Full Text »    PDF »
The Rac Target NADPH Oxidase p67[IMAGE] Interacts Preferentially with Rac2 Rather Than Rac1.
O. Dorseuil, L. Reibel, G. M. Bokoch, J. Camonis, and G. Gacon (1996)
J. Biol. Chem. 271, 83-88
   Abstract »    Full Text »    PDF »
A Conserved Binding Motif Defines Numerous Candidate Target Proteins for Both Cdc42 and Rac GTPases.
P. D. Burbelo, D. Drechsel, and A. Hall (1995)
J. Biol. Chem. 270, 29071-29074
   Abstract »    Full Text »    PDF »
``Peptide Walking'' Is a Novel Method for Mapping Functional Domains in Proteins.
G. Joseph and E. Pick (1995)
J. Biol. Chem. 270, 29079-29082
   Abstract »    Full Text »    PDF »
Identification and Molecular Cloning of a p21[IMAGE]-activated Serine/Threonine Kinase That Is Rapidly Activated by Thrombin in Platelets.
M. Teo, E. Manser, and L. Lim (1995)
J. Biol. Chem. 270, 26690-26697
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Characterization of the Effector-specifying Domain of Rac Involved in NADPH Oxidase Activation.
C. H. Kwong, A. G. Adams, and T. L. Leto (1995)
J. Biol. Chem. 270, 19868-19872
   Abstract »    Full Text »    PDF »
Regulation of human leukocyte p21-activated kinases through G protein--coupled receptors.
U. Knaus, S Morris, H. Dong, J Chernoff, and G. Bokoch (1995)
Science 269, 221-223
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A 68-kDa Kinase and NADPH Oxidase Component p67 Are Targets for Cdc42Hs and Rac1 in Neutrophils.
E. Prigmore, S. Ahmed, A. Best, R. Kozma, E. Manser, A. W. Segal, and L. Lim (1995)
J. Biol. Chem. 270, 10717-10722
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Mapping the Domains of Interaction of p40[IMAGE] with Both p47[IMAGE] and p67[IMAGE] of the Neutrophil Oxidase Complex Using the Two-hybrid System.
A. Fuchs, M.-C. Dagher, and P. V. Vignais (1995)
J. Biol. Chem. 270, 5695-5697
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The Small G-protein Rac Mediates Depolarization-induced Superoxide Formation in Human Endothelial Cells.
H.-Y. Sohn, M. Keller, T. Gloe, H. Morawietz, U. Rueckschloss, and U. Pohl (2000)
J. Biol. Chem. 275, 18745-18750
   Abstract »    Full Text »    PDF »
Targeting of Rac1 to the Phagocyte Membrane Is Sufficient for the Induction of NADPH Oxidase Assembly.
Y. Gorzalczany, N. Sigal, M. Itan, O. Lotan, and E. Pick (2000)
J. Biol. Chem. 275, 40073-40081
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The Active N-terminal Region of p67phox. STRUCTURE AT 1.8 A RESOLUTION AND BIOCHEMICAL CHARACTERIZATIONS OF THE A128V MUTANT IMPLICATED IN CHRONIC GRANULOMATOUS DISEASE.
S. Grizot, F. Fieschi, M.-C. Dagher, and E. Pebay-Peyroula (2001)
J. Biol. Chem. 276, 21627-21631
   Abstract »    Full Text »    PDF »
Human neutrophil immunodeficiency syndrome is associated with an inhibitory Rac2 mutation.
D. R. Ambruso, C. Knall, A. N. Abell, J. Panepinto, A. Kurkchubasche, G. Thurman, C. Gonzalez-Aller, A. Hiester, M. deBoer, R. J. Harbeck, et al. (2000)
PNAS 97, 4654-4659
   Abstract »    Full Text »    PDF »



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