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:	S521
P-Site Sequence:	CFSEREASDILYVIS
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	S521	CFSEREASDILYVIS	100 / 9 AA	84
Phosphosite 1:	RSK3	Q15349	S510	YFSEREASDVLCTIT	77 / 9 AA	83
Phosphosite 2:	DCAMKL1	O15075	S489	KYTERDASGMLYNLA	66 / 9 AA	82
Phosphosite 3:	RSK2	P51812	S517	FFSEREASAVLFTIT	66 / 9 AA	84
Phosphosite 4:	MAPKAPK2	P49137	S164	AFTEREASEIMKSIG	75 / 8 AA	46
Phosphosite 5:	GALR2	O43603	S340	SVLERESSDLLHMSE	66 / 9 AA	42
Phosphosite 6:	ST18	O60284	T589	STRCREATDILSNKP	85 / 7 AA	115
Phosphosite 7:	MORC1	Q86VD1	S78	GMSPEEASDIIYFGR	85 / 7 AA	113
Phosphosite 8:	GALR2	O43603	S339	GSVLERESSDLLHMS	75 / 8 AA	42
Phosphosite 9:	LSM7	Q9UK45	S34	FQGGREASGILKGFD	85 / 7 AA	12
Phosphosite 10:	HIP1R	O75146	S268	RNFFRRASDMLYFKR	75 / 8 AA	119
Phosphosite 11:	CASKIN2	Q8WXE0	S281	KQLLREASGILKVRA	85 / 7 AA	127
Phosphosite 12:	BTBD11	A6QL63	S759	AQPEKEKSDILSLEE	75 / 8 AA	121
Phosphosite 13:	SLC29A3	Q9BZD2	S97	TGEDPEGSDILNYFE	55 / 9 AA	52
Phosphosite 14:	C9orf71	Q8N6L7	S119	CPAEREASGIPPPLY	85 / 7 AA	19
Phosphosite 15:	Protein FAM41C-like	Q9NPS7	S46	PRLLREPSDFLHLKS	62 / 8 AA	8
Phosphosite 16:	AGC1	P16112	S1655	PGVSGEASGVLYGTS	71 / 7 AA	250
Phosphosite 17:	ZFHX4	Q86UP3	Y1944	ARQYREAYDKLYPIS	75 / 8 AA	394
Phosphosite 18:	UNC13A	Q9UPW8	S1283	KELDAEASDILKELQ	75 / 8 AA	193
Phosphosite 19:	GOLGB1	Q14789	S317	VETEREESKILLEKM	75 / 8 AA	376
Phosphosite 20:	EIF2AK4	Q9P2K8	S1504	ERNGREASDNLAVQN	85 / 7 AA	187