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acetyl-CoA + dTDP-3-amino-3,6-dideoxy-alpha-D-galactopyranose CoA + dTDP-3-acetamido-3,6-dideoxy-alpha-D-galactopyranose. dTDP-3-acetamido-3,6-dideoxy-alpha-D-galactose is a component of the glycan chain of the crystalline bacterial cell surface layer protein of Aneurinibacillus thermoaerophilus.
Galactose (/ ɡ ə ˈ l æ k t oʊ s /, galacto-+ -ose, "milk sugar"), sometimes abbreviated Gal, is a monosaccharide sugar that is about as sweet as glucose, and about 65% as sweet as sucrose. [2]
Haworth Projection of β-D-glucopyranose Hermann Emil Fischer won the Nobel Prize in Chemistry (1902) for his work in determining the structure of the D - aldohexoses . [ 1 ] However, the linear, free-aldehyde structures that Fischer proposed represent a very minor percentage of the forms that hexose sugars adopt in solution.
TDP-4-oxo-6-deoxy-alpha-D-glucose-3,4-oxoisomerase (dTDP-3-dehydro-6-deoxy-alpha-D-galactopyranose-forming) (EC 5.3.2.3, dTDP-6-deoxy-hex-4-ulose isomerase, TDP-6-deoxy-hex-4-ulose isomerase, FdtA) is an enzyme with systematic name dTDP-4-dehydro-6-deoxy-alpha-D-glucopyranose:dTDP-3-dehydro-6-deoxy-alpha-D-galactopyranose isomerase.
A segment of galactomannan showing mannose backbone (below) with a branching galactose unit (top) Galactomannans are polysaccharides consisting of a mannose backbone with galactose side groups, more specifically, a (1-4)-linked beta-D-mannopyranose backbone with branchpoints from their 6-positions linked to alpha-D-galactose, (i.e. 1-6-linked alpha-D-galactopyranose).
Galactose-α-1,3-galactose, commonly known as alpha gal and the Galili antigen, is a carbohydrate found in most mammalian cell membranes. It is not found in catarrhines , [ 1 ] including humans, who have lost the glycoprotein alpha-1,3-galactosyltransferase ( GGTA1 ) gene.
dTDP-3-amino-3,6-dideoxy-alpha-D-galactopyranose + 2-oxoglutarate dTDP-3-dehydro-6-deoxy-alpha-D-galactopyranose + L-glutamate This enzyme is a pyridoxal-phosphate protein. References
Thus, the two substrates of this enzyme are beta-D-galactopyranosyl-(1->3)-N-acetyl-D-glucosamine and phosphate, whereas its two products are alpha-D-galactopyranose 1-phosphate and N-acetyl-D-glucosamine. This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases.