[Term] id: PR:000035434 name: mitotic checkpoint serine/threonine-protein kinase BUB1 beta phosphorylated 4 def: "A mitotic checkpoint serine/threonine-protein kinase BUB1 beta that has been phosphorylated on residues at positions equivalent to Ser-543, Ser-670, and Ser-1043 of the amino acid sequence represented by UniProtKB:O60566-1. Additional Ser residues could be phosphorylated. Example: UniProtKB:O60566-1, Ser-543/Ser-670/Ser-1043, MOD:00046." [PRO:KER, PMID:19015317, PMID:20016069] comment: Category=modification. synonym: "BUB1B/Phos:4" EXACT PRO-short-label [PRO:DNx] synonym: "BUBR1 phosphorylated" RELATED [] is_a: PR:000004855 ! mitotic checkpoint serine/threonine-protein kinase BUB1 beta relationship: has_part MOD:00046 ! O-phospho-L-serine