from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The univalent radical -SH that is the sulfur analogue of hydroxyl and constitutes the thiol group


Sorry, no etymologies found.


  • SH is sulfhydryl group content, which is a measure of glutathione, a major home-grown antioxidant.

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  • The reactive phenolic chemicals produced by the enzymes combine with sulfhydryl groups to form new and odorless molecules.

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  • This compound acts as a pro-drug for 6-MP which, due to the proximity of the ortho-nitro group, is subject to attack by sulfhydryl groups and other nucleophiles (45-49).

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  • Studies on the rate and extent of renaturation in vitro led to the discovery of a microsomal enzyme which catalyzes sulfhydryl-disulfide interchange and thereby accelerates, in vitro, the refolding of denatured proteins containing disulfide bonds.

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  • The cysTMT Reagents label only free sulfhydryl groups on cysteine residues, in contrast to the amine-reactive TMT® Reagents. Featured News and Stories

  • S-nitrosylation or nitrosation is the modification of sulfhydryl (- SH) to S-nitroso (- SNO) groups and appears to occur at a molar NO/O

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  • What makes NAC so effective as a glutathione booster is the fact that it is a stable amino acid that can retain up to six times the amount of the sulfur and sulfhydryl groups after digestion.

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  • The C13 Sγ sulfhydryl group hydrogen bonds to hydroxyl side chain of residue S10 and makes van der Waals contacts with residues R92 and P93.

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  • Biobuffer - Biochemical buffers are synthetic organic compounds that often contain non-carbon functional groups such as phosphate, amino, sulfhydryl, hydroxy, and heterocyclic atoms capable of being ionized at physiological pH ranges.


  • Nitric oxide-mediated nitrosylation of cysteine sulfhydryl groups has been shown to occur on and regulate the activity not only of NMDA receptors, but of various other ion channels, signaling intermediates, enzymes and transcription factors

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