[Term]
id: PR:000000601
name: transcription factor Sp1 isoform 1 phosphorylated 3
def: "A transcription factor Sp1 isoform 1 phosphorylated form in which the phosphorylation occurs at the Ser residue within the CyclinA/cdk2 phosphorylation site (QPSP sequence). Phosphorylation at this site induces removal of the inhibitory domain by proteolytic processing and activation of transcription activity. Example: UniProtKB:P08047-1, Ser-59, MOD:00046." [PMID:18239466]
comment: Category=modification.
synonym: "SP1/iso:1/Phos:3" EXACT PRO-short-label [PRO:DNx]
is_a: PR:000000493 ! transcription factor Sp1 isoform 1 phosphorylated form
relationship: has_part MOD:00046 ! O-phospho-L-serine