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:	Y102
P-Site Sequence:	GPDAGQLYAMKVLKK
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	Y102	GPDAGQLYAMKVLKK	100 / 9 AA	84
Phosphosite 1:	RSK3	Q15349	Y88	GSDAGQLYAMKVLKK	100 / 9 AA	83
Phosphosite 2:	RPS6KA1	Q15418	Y91	RPDSGHLYAMKVLKK	77 / 9 AA	83
Phosphosite 3:	MSK2	O75676	Y62	GHDAGKLYAMKVLRK	88 / 9 AA	86
Phosphosite 4:	RSK2	P51812	Y97	GSDARQLYAMKVLKK	88 / 9 AA	84
Phosphosite 5:	MSK1	O75582	Y78	GHDTGKLYAMKVLKK	77 / 9 AA	90
Phosphosite 6:	CRIK	O14578	Y123	EKATGDIYAMKVMKK	66 / 9 AA	231
Phosphosite 7:	STK38L	Q9Y2H1	Y116	KKDTGHIYAMKILRK	55 / 9 AA	54
Phosphosite 8:	PKCZ	Q05513	Y278	LKKNDQIYAMKVVKK	75 / 8 AA	68
Phosphosite 9:	STK38	Q15208	Y115	KKDTGHVYAMKILRK	55 / 9 AA	54
Phosphosite 10:	PKCh	P24723	Y381	VKETGDLYAVKVLKK	66 / 9 AA	78
Phosphosite 11:	GMPPB	Q9Y5P6	Y208	MAKEGQLYAMELQGF	66 / 9 AA	40
Phosphosite 12:	RPS6KB2	Q9UBS0	Y96	GTNLGKIYAMKVLRK	75 / 8 AA	53
Phosphosite 13:	PRKCI	P41743	Y280	LKKTDRIYAMKVVKK	55 / 9 AA	68
Phosphosite 14:	MASTL	Q96GX5	Y59	GQKGGKLYAVKVVKK	66 / 9 AA	97
Phosphosite 15:	PKBb	P31751	Y178	EKATGRYYAMKILRK	55 / 9 AA	56
Phosphosite 16:	AKT1	P31749	Y176	EKATGRYYAMKILKK	55 / 9 AA	56
Phosphosite 17:	ADRBK2	P35626	Y217	KADTGKMYAMKCLDK	55 / 9 AA	80
Phosphosite 18:	GRK2	P25098	Y217	KADTGKMYAMKCLDK	55 / 9 AA	80
Phosphosite 19:	CYP2A7	P20853	Y220	STSTGQLYEMFSSVM	71 / 7 AA	56
Phosphosite 20:	CYP2A6	P11509	Y220	STSTGQLYEMFSSVM	71 / 7 AA	57