[Term]
id: PR:000044813
name: glycoprotein hormone beta chain
def: "A protein that has a core domain composition consisting of a signal peptide followed by a single copy of the Cys_knot (Pfam:PF00007) domain. The Cysteine knot is a protein structural motif containing three disulfide bridges." [PRO:CNA, Pfam:PF00007]
comment: Category=family.
is_a: PR:000000001 ! protein