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:	T281
P-Site Sequence:	QGKDRNETMNMILKA
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	T281	QGKDRNETMNMILKA	100 / 9 AA	84
Phosphosite 1:	RSK2	P51812	T276	QGKDRKETMTMILKA	77 / 9 AA	84
Phosphosite 2:	RPS6KA1	Q15418	T270	QGKDRKETMTLILKA	66 / 9 AA	83
Phosphosite 3:	RSK3	Q15349	T267	QGKDRKETMALILKA	66 / 9 AA	83
Phosphosite 4:	WDR64	B1ANS9	T575	LALERNGTIKMIQGK	55 / 9 AA	124
Phosphosite 5:	ZBTB5	O15062	T61	SVAEGDQTMNMIQLD	55 / 9 AA	74
Phosphosite 6:	PSME1	Q06323	T244	LKKPRGETKGMIY__	62 / 8 AA	29
Phosphosite 7:	ANKRD34B	A5PLL1	T45	ESNDRGETPLMIACK	66 / 9 AA	56
Phosphosite 8:	RSK2	P51812	T278	KDRKETMTMILKAKL	71 / 7 AA	84
Phosphosite 9:	ST8SIA2	Q92186	T132	YIFDRDSTMNVSQNL	62 / 8 AA	42
Phosphosite 10:	CAPN2	P17655	T621	IDVDRSGTMNSYEMR	71 / 7 AA	80
Phosphosite 11:	POLR3D	P05423	T173	DPGLRNDTRNMPVQL	71 / 7 AA	44
Phosphosite 12:	NDRG3	Q9UGV2	T370	DVLDRHQTMEVSC__	50 / 8 AA	41
Phosphosite 13:	CAPN2	P17655	S619	REIDVDRSGTMNSYE	71 / 7 AA	80
Phosphosite 14:	THOC7	Q6I9Y2	T135	HHPDRHETLKELEAL	57 / 7 AA	24
Phosphosite 15:	TPR	P12270	T1268	ELMKKTETMNVVMET	50 / 8 AA	267
Phosphosite 16:	CTSF	Q9UBX1	T162	HPDNRNETFSSVISL	44 / 9 AA	53
Phosphosite 17:	PSEN1	P49768	T281	TAQERNETLFPALIY	66 / 6 AA	53
Phosphosite 18:	Protein GPR89A	B7ZAQ6	T196	LERRLLQTMDMIISK	66 / 6 AA
Phosphosite 19:	GPR89C	A6NKF9	T61	LERRLLQTMDMIISK	66 / 6 AA	37
Phosphosite 20:	S100PBP	Q96BU1	T247	RISDHSETPNMELSC	62 / 8 AA	46