Modifier	Substrate	Residue	Sequence	Mechanism/Effect	PMID	Interaction ID
CyclinB/CDK1	PBK	Thr9	EGISNFKtPSKLSEK	phosphorylation up-regulates activity	15541388	SIGNOR-250720
SRC	PBK	Tyr74	NPICNDHyRSVYQKR	phosphorylation up-regulates quantity by stabilization	27016416	SIGNOR-277218
CyclinB/CDK1	PBK	Thr9	EGISNFKtPSKLSEK	phosphorylation unknown	15541388	SIGNOR-216896
CDK1	PBK	Thr9	EGISNFKtPSKLSEK	phosphorylation unknown	15541388	SIGNOR-130439
MAPK1	PBK	–		phosphorylation up-regulates activity	35546143	SIGNOR-279744
SRC	PBK	Tyr272	DFDDEAYyAALGTRP	phosphorylation up-regulates quantity by stabilization	27016416	SIGNOR-277217

Enzyme	Effect	Phosphosite	Effect	Target	PMID	Interaction ID
CyclinB/CDK1	phosphorylation up-regulates →	PBK PThr9	phosphorylation up-regulates →	PBK	15541388	SIGNOR-250720
SRC	phosphorylation up-regulates →	PBK PTyr74	phosphorylation up-regulates →	PBK	27016416	SIGNOR-277218
CyclinB/CDK1	phosphorylation up-regulates →	PBK PThr9	phosphorylation down-regulates ⊣	PBK	15541388	SIGNOR-216896
CDK1	phosphorylation up-regulates →	PBK PThr9	phosphorylation down-regulates ⊣	PBK	15541388	SIGNOR-130439
SRC	phosphorylation up-regulates →	PBK PTyr272	phosphorylation up-regulates →	PBK	27016416	SIGNOR-277217

Regulator	Mechanism/Effect	Target	SIGNOR-ID
CyclinB/CDK1	phosphorylation → up-regulates activity	PBK	SIGNOR-250720
SRC	phosphorylation → up-regulates quantity by stabilization	PBK	SIGNOR-277218
CyclinB/CDK1	phosphorylation → unknown	PBK	SIGNOR-216896
CDK1	phosphorylation → unknown	PBK	SIGNOR-130439
MAPK1	phosphorylation → up-regulates activity	PBK	SIGNOR-279744
SRC	phosphorylation → up-regulates quantity by stabilization	PBK	SIGNOR-277217