Modifier	Substrate	Residue	Sequence	Mechanism/Effect	PMID	Interaction ID
MAPK3	PCYT1A	Ser315 View in OncoXplorer	GRMLQAIsPKQSPSS	phosphorylation down-regulates	15788406	SIGNOR-134841
ERK1/2	PCYT1A	–		phosphorylation down-regulates	15788406	SIGNOR-270151
MAPK1	PCYT1A	Ser315 View in OncoXplorer	GRMLQAIsPKQSPSS	phosphorylation down-regulates	15788406	SIGNOR-134837
Gbeta	PCYT1A	–		phosphorylation down-regulates	15788406	SIGNOR-270028

Enzyme	Effect	Phosphosite	Effect	Target	PMID	Interaction ID
MAPK3	phosphorylation up-regulates →	PCYT1A PSer315	phosphorylation down-regulates ⊣	PCYT1A	15788406	SIGNOR-134841
MAPK1	phosphorylation up-regulates →	PCYT1A PSer315	phosphorylation down-regulates ⊣	PCYT1A	15788406	SIGNOR-134837

Regulator	Mechanism/Effect	Target	SIGNOR-ID
MAPK3	phosphorylation down-regulates	PCYT1A	SIGNOR-134841
ERK1/2	phosphorylation down-regulates	PCYT1A	SIGNOR-270151
MAPK1	phosphorylation down-regulates	PCYT1A	SIGNOR-134837
Gbeta	phosphorylation down-regulates	PCYT1A	SIGNOR-270028