Note - Blast analyses are based on comparisons of the phosphosites and the bordering four amino acids on each side of these phosphosites.

Phosphosite
Human Protein:	RSK4
Human P-Site:	S351
P-Site Sequence:	QPPFKPASGKPDDTF
UniProt:	Q9UK32
Intern. Prot. ID:	IPI00007123

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	RSK4	Q9UK32	S351	QPPFKPASGKPDDTF	100 / 9 AA	84
Phosphosite 1:	RSK2	P51812	T348	HPPFKPATGRPEDTF	66 / 9 AA	84
Phosphosite 2:	GPR50	Q13585	S471	SVHFKPASSNPKPIT	75 / 8 AA	67
Phosphosite 3:	USP34	Q70CQ2	S1367	LASFKPPSGKVAVDD	85 / 7 AA	404
Phosphosite 4:	TMEM16D	Q32M45	S486	KERMNPISGKPEPYQ	55 / 9 AA	111
Phosphosite 5:	SLC46A3	Q7Z3Q1	S253	YMLFKNASGKRRFLL	75 / 8 AA	52
Phosphosite 6:	Sh3rf2	Q8TEC5	S662	HYTSHPTSGKPEQPA	71 / 7 AA	79
Phosphosite 7:	ZZZ3	Q8IYH5	S349	SLESMPASGEPEPSP	62 / 8 AA	102
Phosphosite 8:	GON4	Q3T8J9	S2068	DAGRRHVSGKPDTQE	62 / 8 AA	249
Phosphosite 9:	MUC4	Q99102	T1103	SPLFKPATGFPLGSS	75 / 8 AA	232
Phosphosite 10:	SHANK3	Q9BYB0	S1339	TTVPSPASGKPSSEP	100 / 6 AA	186
Phosphosite 11:	TPH2	Q8IWU9	S41	STLNKPNSGKNDDKG	75 / 8 AA	56
Phosphosite 12:	ACACA	Q13085	S523	DEGFKPSSGTVQELN	83 / 6 AA	266
Phosphosite 13:	ACC2	O00763	S666	DEGFKPSSGTVQELN	83 / 6 AA	277
Phosphosite 14:	CHD3	Q12873	S335	SGSVHSASGRPDGPV	83 / 6 AA	227
Phosphosite 15:	ACSL3	O95573	S62	IKAKPVNSKPDSAYR	62 / 8 AA	80
Phosphosite 16:	CCNT1	O60563	S475	GGDKAASSKPEEIKM	62 / 8 AA	81
Phosphosite 17:	GPR50	Q13585	S429	SGHSKPASGHPKSAT	85 / 7 AA	67
Phosphosite 18:	BHMT2	Q9H2M3	S350	WENLLPASGRPFCPS	83 / 6 AA	40
Phosphosite 19:	GPR98	Q8WXG9	T3511	VNRIHSFTPASGIAH	83 / 6 AA	693
Phosphosite 20:	BPI	P17213	S156	KLGSNPTSGKPTITC	71 / 7 AA	54