Cited by 375Redox biology and oxidative stressNeutrophil, Myeloperoxidase and Oxidative MechanismsSkin and Cellular Biology Research

Tyrosine cross-linking of extracellular matrix is catalyzed by Duox, a multidomain oxidase/peroxidase with homology to the phagocyte oxidase subunit gp91 phox

Open access
Edens, William A., Sharling, Lisa, Cheng, Guangjie, Shapira, Raymond, Kinkade, Joseph M., Lee, Taehoon, Edens, Heather A., Tang, Xuexin +4 more·2001·The Journal of Cell Biology

Abstract

High molecular weight homologues of gp91phox, the superoxide-generating subunit of phagocyte nicotinamide adenine dinucleotide phosphate (NADPH)-oxidase, have been identified in human (h) and Caenorhabditis elegans (Ce), and are termed Duox for “dual oxidase” because they have both a peroxidase homology domain and a gp91phox domain. A topology model predicts that the enzyme will utilize cytosolic NADPH to generate reactive oxygen, but the function of the ecto peroxidase domain was unknown. Ce-Duox1 is expressed in hypodermal cells underlying the cuticle of larval animals. To investigate function, RNA interference (RNAi) was carried out in C. elegans. RNAi animals showed complex phenotypes similar to those described previously in mutations in collagen biosynthesis that are known to affect the cuticle, an extracellular matrix. Electron micrographs showed gross abnormalities in the cuticle of RNAi animals. In cuticle, collagen and other proteins are cross-linked via di- and trityrosine linkages, and these linkages were absent in RNAi animals. The expressed peroxidase domains of both Ce-Duox1 and h-Duox showed peroxidase activity and catalyzed cross-linking of free tyrosine ethyl ester. Thus, Ce-Duox catalyzes the cross-linking of tyrosine residues involved in the stabilization of cuticular extracellular matrix.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1083/jcb.200103132

Cites

67 of 67 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • DUOX1 and 2 have a similar architecture to NOX5 and include an additional transmembrane domain connected to a putative extracellular peroxidase domain.

    “DUOX1 and 2 have a similar architecture to NOX5 and include an additional transmembrane domain connected to a putative extracellular peroxidase domain (262).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Sonnhammer, E., G. von Heijne, and A. Krogh. 1998. Proceedings of the Sixth International Conference on Intelligent Systems for Molecular Biology. J. Glasgow, F. Littlejohn, R. Major, R. Lathrop, D. Sankoff, and C. Sensen, editors. AAAI Press, Menlo Park, CA. 175–182. 9783223

Cited by

Sorted by citations

Authors
Edens, W. A., Sharling, L., Cheng, G., Shapira, R., Kinkade, J. M., Lee, T., Edens, H. A., Tang, X., Sullards, C., Flaherty, D. B., Benian, G. M., & Lambeth, J. D.
Affiliations
Emory University (US)
Venue
The Journal of Cell Biology
Published
2001-08-20
Volume
154
Issue
4
Pages
879-892
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2136261717
Cited by
375
References
67
Citations by year
2026: 3 · 2025: 9 · 2024: 4 · 2023: 20 · 2022: 8 · 2021: 17 · 2020: 12 · 2019: 18 · 2018: 13 · 2017: 16 · 2016: 14 · 2015: 12 · 2014: 20 · 2013: 19 · 2012: 18
FWCI
4.19
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Cell Biology (publishedVersion)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Funders
  • National Cancer Institute (CA-84138, R01CA084138)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK07298, T32DK007298)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR/GM-44419)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Skin and Cellular Biology Research
Keywords
dual oxidase, extracellular matrix cross-linking, cuticle, collagen cross-linking, peroxidase activity, NADPH oxidase, RNA interference, subcutaneous tissue
MeSH terms
Dual Oxidases, NADPH Oxidase 2, Amino Acid Sequence, Animals, Cloning, Molecular, Extracellular Matrix, Flavoproteins, Humans, Membrane Glycoproteins, Models, Biological, Models, Molecular, Molecular Sequence Data, Phagocytes, Tissue Distribution, Mutagenesis, Caenorhabditis elegans, Sequence Homology, Amino Acid, Protein Structure, Tertiary, DNA, Complementary, NADPH Oxidases

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review