Cyclic 5-membered disulfides are not selective substrates of thioredoxin reductase, but are opened nonspecifically

oleh: Jan G. Felber, Lena Poczka, Karoline C. Scholzen, Lukas Zeisel, Martin S. Maier, Sander Busker, Ulrike Theisen, Christina Brandstädter, Katja Becker, Elias S. J. Arnér, Julia Thorn-Seshold, Oliver Thorn-Seshold

Format: Article
Diterbitkan: Nature Portfolio 2022-04-01

Deskripsi

Cyclic five-membered disulfides (1,2-dithiolanes) have been reported either as nonspecific redox motifs, or as highly specific cellular probes for thioredoxin reductase (TrxR). Here the authors show that 1,2-dithiolane probes are nonspecifically reduced by a range of thiol reductants and are not sensitive to TrxR modulation, thus they are unsuitable as cellular probes for TrxR.