[Term] id: PR:000035766 name: protein BRASSINOSTEROID INSENSITIVE 1 isoform 1 phosphorylated 4 def: "A protein BRASSINOSTEROID INSENSITIVE 1 isoform 1 that has been phosphorylated on at least a Ser residue within the kinase domain by the somatic embryogenesis receptor-like kinase 1 (SERK1). Example: UniProtKB:O22476-1, Ser-887, MOD:00046." [PRO:LVM, PMID:19105183] comment: Category=modification. Note that only this form was found in vitro using only the kinase domain, therefore other residues could be phosphorylated in the full length protein. synonym: "BRI1/iso:1/Phos:4" EXACT PRO-short-label [PRO:DNx] synonym: "BRI1 SERK1 transphosphorylated" EXACT [] is_a: PR:000028354 ! protein BRASSINOSTEROID INSENSITIVE 1 isoform 1 relationship: has_part MOD:00046 ! O-phospho-L-serine