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putative hydroxymethylpyrimidine transporter CytX On the basis of a phylogenomic study of thiamine biosythetic, salvage, and transporter genes and a highly conserved RNA element THI, this protein family has been identified as a probable transporter of hydroxymethylpyrimidine (HMP), the phosphorylated (by ThiD) form of which gets joined (by ThiE) to hydroxyethylthiazole phosphate to make thiamine phosphate. [Transport and binding proteins, Nucleosides, purines and pyrimidines, Biosynthesis of cofactors, prosthetic groups, and carriers, Thiamine]
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