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:	S445
P-Site Sequence:	PTRRRSRSPIRRRSR
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	S445	PTRRRSRSPIRRRSR	100 / 9 AA	117
Phosphosite 1:	SRRM1	Q8IYB3	S343	PRHRRSRSPVRRRRR	88 / 9 AA	102
Phosphosite 2:	PRPF4B	Q13523	S453	PIRRRSRSPLRRSRS	88 / 9 AA	117
Phosphosite 3:	SON	P18583	S2031	LRRRFSRSPIRRKRS	88 / 9 AA	264
Phosphosite 4:	SON	P18583	T2022	VRLRRSRTPLRRRFS	77 / 9 AA	264
Phosphosite 5:	RNF6	Q9Y252	S313	TSNSRSRSPIQRQSG	87 / 8 AA	78
Phosphosite 6:	NCoA5	Q9HCD5	S29	RDSRRDRSPIRGSPR	87 / 8 AA	66
Phosphosite 7:	KCNC2	Q96PR1	S630	SPCPLRRSRSPIPSI	100 / 7 AA	70
Phosphosite 8:	BOP1	Q14137	S573	LSRRRSQSPFRRSHG	77 / 9 AA	84
Phosphosite 9:	PRPF4B	Q13523	S443	WSPTRRRSRSPIRRR	100 / 7 AA	117
Phosphosite 10:	KCNC2	Q96PR1	S632	CPLRRSRSPIPSIL_	100 / 7 AA	70
Phosphosite 11:	PRPF38A	Q8NAV1	S245	SPRRRSRSPKRRSPS	88 / 9 AA	37
Phosphosite 12:	RBM8A	Q9Y5S9	S168	GGRRRSRSPDRRRR_	88 / 9 AA	20
Phosphosite 13:	Rap1GAP2	Q684P5	S558	TVKNQSRSPIKRRSG	75 / 8 AA	80
Phosphosite 14:	RIMS1	Q86UR5	S989	HPTRRSRSPTRHHDA	77 / 9 AA	189
Phosphosite 15:	SRRM2	Q9UQ35	S629	RRRSRTRSPVRRRSR	75 / 8 AA	300
Phosphosite 16:	SFRS2B	Q9BRL6	S127	SYGRRSRSPRRRHRS	88 / 9 AA	32
Phosphosite 17:	RNPS1	Q15287	S276	RMRRRSRSPRRRSPV	88 / 9 AA	34
Phosphosite 18:	PRPF4B	Q13523	S467	SPRRRSRSPRRRDRG	88 / 9 AA	117
Phosphosite 19:	PRPF4B	Q13523	S460	SPLRRSRSPRRRSRS	88 / 9 AA	117
Phosphosite 20:	SFRS2	Q01130	S121	GYGRRSRSPRRRRRS	88 / 9 AA	25