[Term] id: PR:000028799 name: tubulin def: "A protein that has a core domain composition consisting of a Tubulin/FtsZ family, GTPase domain (Pfam:PF00091) at the N terminus, and a Tubulin C-terminal domain (Pfam:PF03953). Tubulins possess GTPase activity, and are the principle components of microtubules." [PRO:DAN, Pfam:PF03953] comment: Category=family. synonym: "fam:TUB" EXACT PRO-short-label [PRO:DAN] is_a: PR:000000001 ! protein