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:	PRPF4B
Human P-Site:	S309
P-Site Sequence:	SKDRRSRSKERKSKR
UniProt:	Q13523
Intern. Prot. ID:	IPI00013721

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PRPF4B	Q13523	S309	SKDRRSRSKERKSKR	100 / 9 AA	117
Phosphosite 1:	DDX46	Q7L014	S62	RDKRRSRSRDRKRLR	77 / 9 AA	117
Phosphosite 2:	SAPAP2	Q9P1A6	S279	KHSKRSKSKERKPEG	77 / 9 AA	118
Phosphosite 3:	RBM39	Q14498	S52	HERKRSKSKERKRSR	77 / 9 AA	59
Phosphosite 4:	CACNA1E	Q15878	S2086	GGRERGRSKERKHLL	87 / 8 AA	262
Phosphosite 5:	PRPF4B	Q13523	S217	EKTTRSKSKERKKSK	87 / 8 AA	117
Phosphosite 6:	SFRS3	P84103	S160	RSRSRSRSNERK___	87 / 8 AA	19
Phosphosite 7:	RSRC2	Q7L4I2	S139	ERRHRSRSRERKKSR	77 / 9 AA	51
Phosphosite 8:	PRPF38B	Q5VTL8	S503	KSRKRSRSKERSHKR	87 / 8 AA	64
Phosphosite 9:	PRPF4B	Q13523	S307	GKSKDRRSRSKERKS	100 / 7 AA	117
Phosphosite 10:	RBM16	Q9UPN6	S435	RKRSRSRSRERKRKS	87 / 8 AA	141
Phosphosite 11:	RSRC2	Q7L4I2	S47	YSRSRSRSRERKRKS	87 / 8 AA	51
Phosphosite 12:	RSRC2	Q7L4I2	S169	RKKSRSRSRERKRRI	87 / 8 AA	51
Phosphosite 13:	RSRC2	Q7L4I2	S149	RKKSRSRSRERKKSR	87 / 8 AA	51
Phosphosite 14:	PRPF38B	Q5VTL8	S430	KKHSRSRSRERKHRS	87 / 8 AA	64
Phosphosite 15:	DNTTIP2	Q5QJE6	S205	IATRRTRSMQRKLKA	66 / 9 AA	84
Phosphosite 16:	RBM39	Q14498	S76	RERKRSRSKERRRSR	77 / 9 AA	59
Phosphosite 17:	PRPF38B	Q5VTL8	S332	LERRRSRSRERHRSR	87 / 8 AA	64
Phosphosite 18:	P2RY13	Q9BPV8	S244	DSYRKSKSKDRKNNK	66 / 9 AA	41
Phosphosite 19:	DDX46	Q7L014	S73	KRLRRSRSRERDRSR	87 / 8 AA	117
Phosphosite 20:	SAPAP3	O95886	S244	RHGKRSKSKDRKGDG	66 / 9 AA	106