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:	S643
P-Site Sequence:	RIGNGKFSLSGGNWD
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	S643	RIGNGKFSLSGGNWD	100 / 9 AA	84
Phosphosite 1:	RSK2	P51812	S639	RIGSGKFSLSGGYWN	88 / 9 AA	84
Phosphosite 2:	RPS6KA1	Q15418	T635	RIGSGKFTLSGGNWN	77 / 9 AA	83
Phosphosite 3:	RSK4	Q9UK32	S645	GNGKFSLSGGNWDNI	100 / 7 AA	84
Phosphosite 4:	RSK2	P51812	S641	GSGKFSLSGGYWNSV	100 / 7 AA	84
Phosphosite 5:	RPS6KA1	Q15418	S637	GSGKFTLSGGNWNTV	85 / 7 AA	83
Phosphosite 6:	SFRS14	Q8IX01	Y63	DVHSDGRYSLSGSVA	62 / 8 AA	120
Phosphosite 7:	SFRS14	Q8IX01	S64	VHSDGRYSLSGSVAH	62 / 8 AA	120
Phosphosite 8:	KIAA1109	Q2LD37	S582	ATCNTKFSLRGEDVD	75 / 8 AA	555
Phosphosite 9:	VAV3	Q9UKW4	T319	RANNGKFTLRDLLVV	62 / 8 AA	98
Phosphosite 10:	NELL1	Q92832	S588	FHDDGTYSLSGESCI	62 / 8 AA	90
Phosphosite 11:	NELL1	Q92832	Y587	GFHDDGTYSLSGESC	62 / 8 AA	90
Phosphosite 12:	CRHBP	P24387	T195	QTPNGKFTLVVPHQH	83 / 6 AA	36
Phosphosite 13:	HPS4	Q9NQG7	S691	NPQDGAFSLSGKAKQ	75 / 8 AA	77
Phosphosite 14:	STK24	Q9Y6E0	S434	VQRLQRYSLSGGGTS	71 / 7 AA	49
Phosphosite 15:	STK24	Q9Y6E0	S436	RLQRYSLSGGGTSSH	71 / 7 AA	49
Phosphosite 16:	RSK3	Q15349	Y631	ARIGSGKYALSGGNW	62 / 8 AA	83
Phosphosite 17:	ANKRD11	Q6UB99	S832	ENEDTKFSLSDDQRD	55 / 9 AA	298
Phosphosite 18:	RSK3	Q15349	S634	GSGKYALSGGNWDSI	71 / 7 AA	83
Phosphosite 19:	KIF2C	Q99661	S489	GRMHGKFSLVDLAGN	83 / 6 AA	81
Phosphosite 20:	NELL2	Q99435	S594	YHDNGMFSPSGESCE	75 / 8 AA	91