Arabinosyltransferase

An arabinosyltransferase is a transferase enzyme acting upon arabinose.

[1] This enzyme is involved in polymerisation of arabinogalactan (an essential component of the mycobacterial cell wall).

Mycobacterially, the more precise term is arabinofuranosyltransferase, since the arabinose residues occur only in a furanose form.

This enzyme has important clinical applications as it is believed to be the target of the antimycobacterial drug ethambutol.

[2]