Modifier	Substrate	Residue	Sequence	Mechanism/Effect	PMID	Interaction ID
PKA	NKD2	Ser223 View in OncoXplorer	SAHVRRPsTDPQPCS	phosphorylation up-regulates quantity by stabilization	30941853	SIGNOR-273782

Enzyme	Effect	Phosphosite	Effect	Target	PMID	Interaction ID
PKA	phosphorylation up-regulates →	NKD2 PSer223	phosphorylation up-regulates →	NKD2	30941853	SIGNOR-273782

Regulator	Mechanism/Effect	Target	SIGNOR-ID
PKA	phosphorylation → up-regulates quantity by stabilization	NKD2	SIGNOR-273782