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:	S307
P-Site Sequence:	GKSKDRRSRSKERKS
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	S307	GKSKDRRSRSKERKS	100 / 9 AA	117
Phosphosite 1:	PRPF4B	Q13523	S309	SKDRRSRSKERKSKR	100 / 7 AA	117
Phosphosite 2:	MAGEL2	Q9UJ55	T17	GSSKERRTSSKERRA	66 / 9 AA	59
Phosphosite 3:	HIVEP3	Q5T1R4	T792	ESGKERRTTSKEISV	66 / 9 AA	259
Phosphosite 4:	DDX46	Q7L014	S40	KRGDDRRSRSRDRDR	75 / 8 AA	117
Phosphosite 5:	BCoR	Q6W2J9	S747	EEKPERRSRSHERAR	75 / 8 AA	192
Phosphosite 6:	KIAA0513	O60268	S72	SWDQDRRSSSNESFS	66 / 9 AA	47
Phosphosite 7:	ZNF265	O95218	S202	KKKSNRRSRSKSRSS	85 / 7 AA	37
Phosphosite 8:	KIAA0513	O60268	S73	WDQDRRSSSNESFSS	75 / 8 AA	47
Phosphosite 9:	DDX46	Q7L014	S118	SKKTENRSRSKEKTD	75 / 8 AA	117
Phosphosite 10:	ABCG8	Q9H221	S331	LTSIDRRSREQELAT	75 / 8 AA	76
Phosphosite 11:	ZNF514	Q96K75	S80	DWKRRSKSKESMPSW	85 / 7 AA	46
Phosphosite 12:	U2AF1	Q01081	S204	SRSRERRSRSRDRGR	55 / 9 AA	28
Phosphosite 13:	CCDC49	Q9NXE8	S286	AGSRDRRSRSLGRRS	85 / 7 AA	50
Phosphosite 14:	ARPP-21	Q9UBL0	S278	PFRDDRRSKSIEERE	75 / 8 AA	89
Phosphosite 15:	R3HDM1	Q15032	S280	RLKDDRRSKSIEERE	75 / 8 AA	121
Phosphosite 16:	TRA2B	P62995	S37	ARHTPARSRSKEDSR	100 / 6 AA	34
Phosphosite 17:	PPIG	Q13427	S587	HDRDRSRSKEYHRYR	100 / 6 AA	89
Phosphosite 18:	DDX46	Q7L014	S120	KTENRSRSKEKTDGG	100 / 6 AA	117
Phosphosite 19:	ZNF514	Q96K75	S78	HSDWKRRSKSKESMP	85 / 7 AA	46
Phosphosite 20:	PDCD4	Q53EL6	S104	GRLLDRRSRSGKGRG	100 / 6 AA	52