Protein
dTDP-glucose 4,6-dehydratase
Organism
Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155)
Function
Catalyzes the dehydration of dTDP-D-glucose to form dTDP-6-deoxy-D-xylo-4-hexulose via a three-step process involving oxidation, dehydration and reduction (By similarity). Involved in the biosynthesis of the dTDP-L-rhamnose which is a component of the critical linker, D-N-acetylglucosamine-L-rhamnose disaccharide, which connects the galactan region of arabinogalactan to peptidoglycan via a phosphodiester linkage (PubMed:16472764).
Similarity
Belongs to the NAD(P)-dependent epimerase/dehydratase family. dTDP-glucose dehydratase subfamily.
Sequence
MRLLVTGGAGFIGANFVHLALREARTSSITVLDALTYAGSRESLAPVADRIRLVQGDITDAALVGDLVAESDAVVHFAAETHVDNALADPEPFLHSNVVGTYTILEAVRRHNVRLHHVSTDEVYGDLELDNPARFNETTPYNPSSPYSSTKAAADLLVRAWVRSYGVRATISNCSNNYGPYQHVEKFIPRQITNVLTGRRPKLYGAGANVRDWIHVDDHNSAVWRILTDGTIGRTYLIGAECERNNLTVMRTILKLMGRDPDDFDHVTDRAGHDLRYAIDPSTLQDELGWAPKHTDFEAGLTDTIDWYRANESWWRPLKDTVEAKYQERGQ