Hemagglutinin components HA-70 type C

UniProtKB accession:  P46085

Grouped By:  Matching UniProtKB accession

UniProtKB description:  The hemagglutinin (HA) component of the progenitor toxin protects the structural integrity of botulinum neurotoxin; may increase internalization of the neurotoxin into the bloodstream of the host (PubMed:9421908). The HA component is involved in binding to the upper small intestine through interactions with glycolipids and glycoproteins containing sialic acid moieties (Probable). Whole protein and the HA-53 chain (but not the HA-22-23 chain) bind to bovine mucin; if the mucin is pretreated with neuraminidase (removes the terminal sialic acid of glycoconjugates) mucin binding is decreased (PubMed:19071137). Has higher affinity for alpha-2,3-sialylated oligosaccharides than alpha-2-6 sialylated oligosaccharides (PubMed:22684008).