FEATURES

FAMILY

Macrolide exporter (TC 3.A.1.122) family

DESCRIPTION

Also known as MACB2_AERHH, macB2. Part of the tripartite efflux system MacAB-TolC. MacB is a non-canonical ABC transporter that contains transmembrane domains (TMD), which form a pore in the inner membrane, and an ATP-binding domain (NBD), which is responsible for energy generation. Confers resistance against macrolides. Homodimer. Part of the tripartite efflux system MacAB-TolC, which is composed of an inner membrane transporter, MacB, a periplasmic membrane fusion protein, MacA, and an outer membrane component, TolC. The complex forms a large protein conduit and can translocate molecules across both the inner and outer membranes. Interacts with MacA.

EXTERNAL LINKS

macB2

Macrolide export ATP-binding/permease protein MacB 2

macB2

Molecular Synopsis