[Term]
id: PR:000021965
name: cholera enterotoxin subunit A1
def: "A cholera enterotoxin subunit A isoform 1 that has been processed by proteolytic cleavage to yield the catalytic subunit of subunit A. The cholera holotoxin consists of a pentameric ring of B subunits whose central pore is occupied by the A subunit. The A subunit contains two chains, A1 and A2, linked by a disulfide bridge." [PMID:955672, UniProtKB:P01555]
comment: Category=modification.
synonym: "ctxA/Clv:A1" EXACT PRO-short-label [PRO:DAN]
synonym: "Cholera enterotoxin A1 chain" EXACT []
synonym: "Cholera enterotoxin alpha chain" EXACT []
synonym: "NAD(+)--diphthamide ADP-ribosyltransferase" EXACT []
is_a: PR:000021963 ! cholera enterotoxin subunit A isoform 1
relationship: output_of GO:0016485 ! protein processing