Cited by 301Neutrophil, Myeloperoxidase and Oxidative MechanismsRedox biology and oxidative stressNitric Oxide and Endothelin Effects

p40 phox , a third cytosolic component of the activation complex of the NADPH oxidase to contain src homology 3 domains

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Wientjes, F B, Hsuan, J J, Totty, N F, Segal, A W·1993·Biochemical Journal

Abstract

The NADPH oxidase generates superoxide in phagocytic cells. It is important for immunity and its deficiency leads to chronic granulomatous disease (CGD). It consists of a membrane-bound flavocytochrome b that lies dormant until activated by the translocation to the plasma membrane of cytosolic proteins, p47phox (phox for phagocyte oxidase), p67phox and p21rac, a small GTP-binding protein. We show here that a novel component, p40phox, forms an activation complex with p47phox and p67phox with which it translocates to the membrane to associate with the flavocytochrome b. cDNA cloning and amino acid analysis revealed that p40phox has an src homology 3 (SH3) domain and a large region of sequence similarity with the N-terminus of p47phox. The primary association of p40phox appears to be with p67phox, and it is present in reduced amounts in patients with CGD lacking p67phox.

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  • H2O2 can modulate gene expression by epigenetic modification and activate transcription factors such as AP-1, NRF2, CREB, HSF1, HIF-1, TP53, NF-κβ, NOTCH, SP1, SCREB-1 and FOXO family.

    “For example, H2O2 can also modulate genes expression by epigenetic modification and activate transcription factors such as AP-1, NRF2, CREB, HSF1, HIF-1, TP53, NF-κβ, NOTCH, SP1, SCREB-1 and FOXO family [14,15,16,17,18,19,20,21,22].”

    From The Role of Reactive Species on Innate Immunity (2022) · cites this paper as [20]

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Research works printed but not linked: 5

  1. Abo, A., Webb, M. R., Grogan, A. and Segal, A. W. (1994) Biochem J., in the press
  2. Gullick, W. J. (1988) in Methods in Molecular Biology, New Protein Techniques (Walker, J. M., ed.), vol. 3, pp. 341-354, The Humana Press, Clifton, NJ, U.S.A. Heyworth, P. G., Shrimpton, C. F. and Segal, A. W. (1989) Biochem. J. 260, 243-248
  3. Heyworth, P. G., Curnutte, J. T., Nauseef, W. M., Volpp, B. D., Pearson, D. W., Rosen, H. and Clark, R. A. (1991) J. Clin. Invest. 87, 352-356
  4. Pearson, W. R. and Lipman, D. J. (1988) Proc. Natl. Acad. Sci. U.S.A. 85, 2444-2448
  5. Sanger, F., Nicklen, S. and Coulson, A. R. (1977) Proc. Natl. Acad. Sci. U.S.A. 74, 5463-5467

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Authors
Wientjes, F. B., Hsuan, J. J., Totty, N. F., & Segal, A. W.
Affiliations
  • University College London (GB)
  • Ludwig Cancer Research (GB)
Venue
Biochemical Journal
Published
1993-12-15
Volume
296
Issue
3
Pages
557-561
ISSN
  • 0264-6021 (ISSN-L)
  • 1470-8728
OpenAlex
W1727958888
Cited by
301
References
27
Citations by year
2026: 3 · 2025: 3 · 2024: 3 · 2023: 9 · 2022: 4 · 2021: 7 · 2020: 3 · 2019: 6 · 2018: 3 · 2017: 6 · 2016: 6 · 2015: 6 · 2014: 11 · 2013: 11 · 2012: 2
FWCI
6.94
Type
journal article
Language
en
Open access
Locations
  • Biochemical Journal (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Wellcome Trust
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
p40phox, NADPH oxidase, superoxide production, chronic granulomatous disease, p47phox, p67phox, Src homology 3 domain, membrane translocation, phagocytes, G proteins
MeSH terms
Amino Acid Sequence, Base Sequence, Biological Transport, Cell Membrane, Cloning, Molecular, Enzyme Activation, Granulomatous Disease, Chronic, Humans, Molecular Sequence Data, NADH, NADPH Oxidoreductases, Neutrophils, Phosphoproteins, Genes, src, Sequence Homology, Amino Acid, DNA, Complementary, NADPH Oxidases

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