Monosialotetrahexosylganglioside GM1 receptor (GM1)

The GM1 ganglioside—formally known as monosialotetrahexosylganglioside GM1—is a glycosphingolipid present on the surface of mammalian cells, including the small intestinal epithelial cells. It serves as the canonical receptor for the enterotoxigenic Escherichia coli (ETEC) heat-labile toxin, as well as cholera toxin, by binding the toxin’s B subunit and facilitating its entry into the host cell[4]. This interaction triggers signaling cascades that ultimately lead to the secretory diarrhea characteristic of ETEC infections[2][4]. GM1’s role as a toxin receptor makes it an attractive but challenging therapeutic target, with most strategies focusing on inhibiting toxin binding or enhancing host immunity rather than directly modulating GM1 itself[2][4].

Other names

GM1 gangliosideGM1Monosialotetrahexosylganglioside

Drugs or molecules that prevent ETEC heat-labile toxin or cholera toxin from binding GM1 can block toxin-induced diarrhea Mechanistic vaccines or neutralizing antibodies act by interruption of toxin-receptor interaction