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:	Y551
P-Site Sequence:	LKPSNILYMDESASA
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	Y551	LKPSNILYMDESASA	100 / 9 AA	84
Phosphosite 1:	RPS6KA1	Q15418	Y543	LKPSNILYVDESGNP	88 / 9 AA	83
Phosphosite 2:	RSK2	P51812	Y547	LKPSNILYVDESGNP	88 / 9 AA	84
Phosphosite 3:	RSK3	Q15349	Y540	LKPSNILYRDESGSP	88 / 9 AA	83
Phosphosite 4:	PRPK	Q96S44	Y112	DYASNCLYMEEIEGS	75 / 8 AA	28
Phosphosite 5:	TMEM70	Q9BUB7	Y246	DKEEFILYMEETSEE	71 / 7 AA	29
Phosphosite 6:	MSK2	O75676	Y538	LKPENILYADDTPGA	62 / 8 AA	86
Phosphosite 7:	GPR125	Q8IWK6	Y724	SDGCHILYSDENITT	55 / 9 AA	146
Phosphosite 8:	CCDC30	Q5VVM6	Y595	SIQSRVLYMDKENKQ	71 / 7 AA	91
Phosphosite 9:	USP35	Q9P2H5	Y960	ISKDNILYLQEQEKE	71 / 7 AA	113
Phosphosite 10:	ZFP1	Q6P2D0	Y33	DPSQRILYMDVMLEN	100 / 5 AA	48
Phosphosite 11:	ARFGEF1	Q9Y6D6	Y1738	LRILFRMYMDESRVS	83 / 6 AA	209
Phosphosite 12:	TAS2R42	Q7RTR8	Y167	DKSNLTLYLDESKTL	71 / 7 AA	36
Phosphosite 13:	C1orf93	Q8TBF2	Y92	DYFAGELYLDESKQL	83 / 6 AA	21
Phosphosite 14:	ZFYVE9	O95405	Y741	SLKCKLLYMDRKEAR	57 / 7 AA	156
Phosphosite 15:	MGAM	O43451	Y416	VQHADIDYMDERRDF	55 / 9 AA	210
Phosphosite 16:	RSK4	Q9UK32	S555	NILYMDESASADSIR	100 / 5 AA	84
Phosphosite 17:	GRXCR1	A8MXD5	S216	GGAEKILSMNESGEL	62 / 8 AA	32
Phosphosite 18:	BAG4	O95429	T272	PPGNLYMTESTSPWP	83 / 6 AA	50
Phosphosite 19:	BAG4	O95429	Y270	SAPPGNLYMTESTSP	83 / 6 AA	50
Phosphosite 20:	SERTAD4	Q9NUC0	Y110	EERAHILYMSLEKLK	66 / 6 AA	39