[Term] id: PR:000035372 name: mitotic checkpoint serine/threonine-protein kinase BUB1 beta unphosphorylated form def: "A mitotic checkpoint serine/threonine-protein kinase BUB1 beta that lacks phosphorylated residues." [PRO:CNA] comment: Category=modification. synonym: "BUB1B/PhosRes-" EXACT PRO-short-label [PRO:DNx] synonym: "BUBR1 unphosphorylated" RELATED [] intersection_of: PR:000004855 ! mitotic checkpoint serine/threonine-protein kinase BUB1 beta intersection_of: lacks_part MOD:00696 ! phosphorylated residue