So once inside the loom of the small intestine, the cholera secretes, the cholera toxin we call chlorogen. This is a protein that consists of two types of chains, the A chains and the B chains. And they combine to form a hexameric structure as shown in this particular case. And this is the region that basically binds onto special region in the membrane we call the GM one ganglioside. So the collagen uses its B units to bind onto the membrane single lipid called the GM one ganglioside. So a ganglioside is basically a single lipid that contains sugar molecules attached onto that polar section.