Ganglioside GM3

**Semantic type:** Immunologic Factor|Organic Chemical

**Definition:** A sialic acid-containing glycosphingolipid antigen and a component of the cell plasma membrane that modulates cell signal transduction, with a designation of GM3. It can be considered as an autoantigen and is commonly associated with autoimmune neuropathies such as Guillain-Barre syndrome and multiple sclerosis.

**Synonyms:** - GANGLIOSIDE GM3