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:	CLK4
Human P-Site:	S128
P-Site Sequence:	CSSHQSRSKSHRRKR
UniProt:	Q9HAZ1
Intern. Prot. ID:	IPI00180143

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CLK4	Q9HAZ1	S128	CSSHQSRSKSHRRKR	100 / 9 AA	57
Phosphosite 1:	CDK12	Q9NYV4	S198	KSGHKDRSKSHRKRE	77 / 9 AA	164
Phosphosite 2:	CLK4	Q9HAZ1	S126	RHCSSHQSRSKSHRR	100 / 7 AA	57
Phosphosite 3:	GPR125	Q8IWK6	S1176	SRHHKNRSKGHRASR	66 / 9 AA	146
Phosphosite 4:	CLK4	Q9HAZ1	S130	SHQSRSKSHRRKRSR	100 / 7 AA	57
Phosphosite 5:	ARX	Q96QS3	S174	VSISRSKSYRENGAP	85 / 7 AA	58
Phosphosite 6:	C5orf42	Q9H799	T488	LKRHQSKTKSQNVFR	62 / 8 AA	237
Phosphosite 7:	SON	P18583	S1856	KRSSKSKSHRSQTRS	85 / 7 AA	264
Phosphosite 8:	ARX	Q96QS3	S172	PQVSISRSKSYRENG	85 / 7 AA	58
Phosphosite 9:	CDK12	Q9NYV4	S200	GHKDRSKSHRKRETP	100 / 6 AA	164
Phosphosite 10:	LUC7L	Q9NQ29	S306	HRRHRSRSRSHSRGH	75 / 8 AA	44
Phosphosite 11:	ROBO3	Q96MS0	S1372	RSRSQSRSQSQRPGQ	75 / 8 AA	148
Phosphosite 12:	PTPN14	Q15678	T1017	AEEEGGRTKSHRYWP	71 / 7 AA	135
Phosphosite 13:	RBMX2	Q9Y388	S299	RSRSRDKSHRHKRAR	85 / 7 AA	37
Phosphosite 14:	FAM120C	Q9NX05	S1029	LELHQGRSRSQVNGN	62 / 8 AA	121
Phosphosite 15:	TRA2B	P62995	S75	YTRSRSRSRSHRRSR	75 / 8 AA	34
Phosphosite 16:	SON	P18583	S1854	ARKRSSKSKSHRSQT	85 / 7 AA	264
Phosphosite 17:	PRPF38A	Q8NAV1	S279	DRRHRSRSKSPGHHR	85 / 7 AA	37
Phosphosite 18:	PTPN14	Q15678	S1019	EEGGRTKSHRYWPKL	71 / 7 AA	135
Phosphosite 19:	TRA2B	P62995	S77	RSRSRSRSHRRSRSR	85 / 7 AA	34
Phosphosite 20:	KRBA1	A5PL33	S188	HSPSRRKSHRGQERG	85 / 7 AA	108