[Term]
id: PR:000000028
name: small GTPase
def: "A protein that has a core domain composition consisting of a Ras family domain (Pfam:PF00071). The small GTPases are monomeric G-proteins which function as GDP/GTP-regulated molecular switches." [PMID:15731001]
comment: Category=family.
is_a: PR:000000001 ! protein