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thiamine biosynthesis protein ThiS This model represents ThiS, a small, ubiquitin-like thiamine biosynthesis protein related to MoaD, a molybdenum cofactor biosynthesis protein. Both proteins are involved in sulfur transfer. ThiS has a conserved Gly-Gly C-terminus that is modified, in reactions requiring ThiI, ThiF, IscS, and a sulfur atom from Cys, into the thiocarboxylate that provides the sulfur for thiazole biosynthesis. [Biosynthesis of cofactors, prosthetic groups, and carriers, Thiamine]
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Jiyao W et al.(2023). "The conserved domain database in 2023.",