EC Number |
Substrates |
Organism |
Products |
Reversibility |
---|
2.4.2.43 | (2Z)-3,7-dimethylocta-2,6-dien-1-yl 1-O-(4-amino-4-deoxy-alpha-L-arabinopyranosyl) phosphate + alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid A |
- |
Burkholderia cenocepacia |
? |
- |
? |
2.4.2.43 | 4-amino-4-deoxy-alpha-L-arabinopyranosyl di-trans,poly-cis-undecaprenyl phosphate + lipid IVA |
- |
Salmonella enterica subsp. enterica serovar Typhimurium |
lipid IIA + di-trans,poly-cis-undecaprenyl phosphate |
- |
? |
2.4.2.43 | 4-amino-4-deoxy-alpha-L-arabinopyranosyl di-trans,poly-cis-undecaprenyl phosphate + lipid IVA |
- |
Escherichia coli |
lipid IIA + di-trans,poly-cis-undecaprenyl phosphate |
- |
? |
2.4.2.43 | 4-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 |
Salmonella enterica subsp. enterica serovar Typhimurium |
lipid IIA + di-trans,poly-cis-undecaprenyl phosphate |
- |
? |
2.4.2.43 | 4-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 |
Salmonella enterica subsp. enterica serovar Typhimurium |
lipid IIA + di-trans,poly-cis-undecaprenyl phosphate |
- |
? |
2.4.2.43 | 4-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 |
Escherichia coli |
lipid IIA + di-trans,poly-cis-undecaprenyl phosphate |
- |
? |
2.4.2.43 | 4-amino-4-deoxy-alpha-L-arabinopyranosyl ditrans,octacis-undecaprenyl phosphate + alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid A |
- |
Pseudomonas aeruginosa |
alpha-Kdo-(2->4)-Kdo-(2->6)-[4-P-L-Ara4N]-lipid A + ditrans,octacis-undecaprenyl phosphate |
- |
? |
2.4.2.43 | 4-amino-4-deoxy-alpha-L-arabinopyranosyl ditrans,octacis-undecaprenyl phosphate + alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid A |
- |
Salmonella enterica |
alpha-Kdo-(2->4)-Kdo-(2->6)-[4-P-L-Ara4N]-lipid A + ditrans,octacis-undecaprenyl phosphate |
- |
? |
2.4.2.43 | 4-amino-4-deoxy-alpha-L-arabinopyranosyl ditrans,octacis-undecaprenyl phosphate + alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid A |
- |
Cupriavidus metallidurans |
alpha-Kdo-(2->4)-Kdo-(2->6)-[4-P-L-Ara4N]-lipid A + ditrans,octacis-undecaprenyl phosphate |
- |
? |
2.4.2.43 | 4-amino-4-deoxy-alpha-L-arabinopyranosyl ditrans,octacis-undecaprenyl phosphate + alpha-Kdo-(2->4)-alpha-Kdo-(2->6)-lipid A |
- |
Burkholderia cenocepacia |
alpha-Kdo-(2->4)-Kdo-(2->6)-[4-P-L-Ara4N]-lipid A + ditrans,octacis-undecaprenyl phosphate |
- |
? |