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Cited by 204

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Mammalian Selenoprotein Thioredoxin-glutathione Reductase

Open access
Su, Dan, Novoselov, Sergey V., Sun, Qi-An, Moustafa, Mohamed E., Zhou, You, Oko, Richard, Hatfield, Dolph L., Gladyshev, Vadim N.·2005·Journal of Biological Chemistry

Abstract

Thioredoxin reductases (TRs) are important redox regulatory enzymes, which control the redox state of thioredoxins. Mammals have cytosolic and mitochondrial TRs, which contain an essential selenocysteine residue and reduce cytosolic and mitochondrial thioredoxins. In addition, thioredoxin/glutathione reductase (TGR) was identified, which is a fusion of an N-terminal glutaredoxin domain and the TR module. Here we show that TGR is expressed at low levels in various tissues but accumulates in testes after puberty. The protein is particularly abundant in elongating spermatids at the site of mitochondrial sheath formation but is absent in mature sperm. We found that TGR can catalyze isomerization of protein and interprotein disulfide bonds and localized this function to its thiol domain. TGR targets include proteins that form structural components of the sperm, including glutathione peroxidase GPx4/PHGPx. Together, TGR and GPx4 can serve as a novel disulfide bond formation system. Both enzymes contain a catalytic selenocysteine consistent with the role of selenium in male reproduction.

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Metadata

Authors
Su, D., Novoselov, S. V., Sun, Q.-A., Moustafa, M. E., Zhou, Y., Oko, R., Hatfield, D. L., & Gladyshev, V. N.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2005-07
Volume
280
Issue
28
Pages
26491-26498
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1966815619
Cited by
204
References
2
FWCI
4.38
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Mammalian Selenoprotein Thioredoxin-glutathione Reductase. https://app.cochat.ai/papers/10.1074/jbc.m503638200
The paper
Su, D., Novoselov, S. V., Sun, Q.-A., Moustafa, M. E., Zhou, Y., Oko, R., Hatfield, D. L., & Gladyshev, V. N. (2005). Mammalian Selenoprotein Thioredoxin-glutathione Reductase. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m503638200

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