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Results 1 - 5 of 5
EC Number Natural Substrates Commentary (Nat. Sub.)
Display the word mapDisplay the reaction diagram Show all sequences 2.4.2.434-amino-4-deoxy-alpha-L-arabinopyranosyl di-trans,poly-cis-undecaprenyl phosphate + lipid IVA -
Display the word mapDisplay the reaction diagram Show all sequences 2.4.2.434-amino-4-deoxy-alpha-L-arabinopyranosyl di-trans,poly-cis-undecaprenyl phosphate + lipid IVA ArnT confers resistance to the antibiotic polymyxin in Salmonella typhimurium and Escherichia coli through the modification of lipid A, a major component of the outer surface of Gram-negative bacteria. ArnT transfers a neutral aminoarabinose moiety onto the negative phosphate groups of lipid A, reducing the surface charge of the bacteria and preventing cationic peptides such as polymyxin from electrostatically recognizing and killing the bacteria. Only small amounts of ArnT are necessary to provide resistance against polymyxin to the bacterial cell
Display the word mapDisplay the reaction diagram Show all sequences 2.4.2.434-amino-4-deoxy-alpha-L-arabinopyranosyl di-trans,poly-cis-undecaprenyl phosphate + lipid IVA the reaction is part of a enzymatic pathway by which Gram-negative bacteria acquire antibiotic resistance
Display the word mapDisplay the reaction diagram Show all sequences 2.4.2.434-amino-4-deoxy-alpha-L-arabinopyranosyl ditrans,octacis-undecaprenyl phosphate + alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid A -
Display the word mapDisplay the reaction diagram Show all sequences 2.4.2.434-amino-4-deoxy-alpha-L-arabinopyranosyl undecaprenyl phosphate + lipid IV(A) ArnT adds a single 4-amino-4-deoxy-alpha-L-arabinose unit to the 1-phosphate moiety of the tetraacylated lipid A precursor, lipid IV(A), which lacks Kdo and forms lipid II (A). Transfer to lipid A occurs on the periplasmic side of the inner membrane. ArnT is a bifunctional glycosyltransferase in that it can incorporate two 4-amino-4-deoxy-alpha-L-arabinose units. Lipid IV(A) = 2-deoxy-2-[[(3R)-3-hydroxypentadecanoyl]amino]-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-beta-D-glucopyranosyl-(1->6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[[(3R)-3-hydroxytetradecanoyl]amino]-1-O-phosphono-alpha-D-glucopyranose. Lipid II(A) = 2-deoxy-2-[[(3R)-3-hydroxypentadecanoyl]amino]-3-O-[(3R)-3-hydroxytetradecanoyl]-4-O-phosphono-beta-D-glucopyranosyl-(1->6)-2-deoxy-3-O-[(3R)-3-hydroxytetradecanoyl]-2-[[(3R)-3-hydroxytetradecanoyl]amino]-1-alpha-D-glucopyranose
Results 1 - 5 of 5