Human Ganglioside Gm2 Activator, GM2A ELI

The large binding pocket can accommodate several single chain phospholipids and fatty acids, GM2A also exhibits some calcium-independent phospholipase activity (By similarity).

Binds gangliosides and stimulates ganglioside GM2 degradation.

It stimulates only the breakdown of ganglioside GM2 and glycolipid GA2 by beta-hexosaminidase A.

It extracts single GM2 molecules from membranes and presents them in soluble form to beta-hexosaminidase A for cleavage of N-acetyl-D-galactosamine and conversion to GM3 (By similarity).

Has cholesterol transfer activity (PubMed: 17552909).