| Galactan 5-O-arabinofuranosyltransferase | |
| Ec Number: | 2.4.2.46 |
Galactan 5-O-arabinofuranosyltransferase (AftA, Rv3792) is an enzyme with systematic name galactofuranan:trans,octacis-decaprenylphospho-beta-D-arabinofuranose 5-O-alpha-D-arabinofuranosyltransferase.[1] This enzyme catalyses the following chemical reaction
Adds an alpha-D-arabinofuranosyl group from trans,octacis-decaprenylphospho-β-D-arabinofuranose at the 5-O-position of the eighth, tenth and twelfth galactofuranose unit of the galactofuranan chain of [beta-D-galactofuranosyl-(1->5)-beta-D-galactofuranosyl-(1->6)]14-beta-D-galactofuranosyl-(1->5)-beta-D-galactofuranosyl-(1->4)-alpha-L-rhamnopyranosyl-(1->3)-N-acetyl-alpha-D-glucosaminyl-diphospho-trans,octacis-decaprenol
This enzyme is isolated from Mycobacterium tuberculosis and Corynebacterium glutamicum.