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:	SPEN
Human P-Site:	S2578
P-Site Sequence:	APPPPVDSKKPLEEK
UniProt:	Q96T58
Intern. Prot. ID:	IPI00045914

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	SPEN	Q96T58	S2578	APPPPVDSKKPLEEK	100 / 9 AA	402
Phosphosite 1:	CYP2U1	Q7Z449	S519	AFALPEDSKKPLLTG	87 / 8 AA	62
Phosphosite 2:	LBX1	P52954	S29	HLPPPANSNKPLTPF	66 / 9 AA	30
Phosphosite 3:	KIAA1409	Q9P2D8	S1237	SVKGPVESKRALSLP	62 / 8 AA	295
Phosphosite 4:	ARAP1	Q96P48	S729	TEVPRLDSMKPLEKH	66 / 9 AA	162
Phosphosite 5:	MAP3K14	Q99558	S292	GKLACVDSQKPLPDP	66 / 9 AA	104
Phosphosite 6:	HERC6	Q8IVU3	S224	GRNVPVQSNKPLSVG	75 / 8 AA	115
Phosphosite 7:	C7orf63	A5D8W1	T685	KNGKIIDTKKPLFTS	71 / 7 AA	106
Phosphosite 8:	CDC42BPB	Q9Y5S2	S1082	CPIPPEQSKRPLGVD	66 / 9 AA	194
Phosphosite 9:	CAST	P20810	S222	ITGPPADSSKPIGPD	66 / 9 AA	77
Phosphosite 10:	VWA3A	A6NCI4	S43	RRNTGRDSKKPLKQK	100 / 6 AA	134
Phosphosite 11:	CENPC1	Q03188	S483	KQMPPVGSKKSSTRK	85 / 7 AA	107
Phosphosite 12:	MeCP2	P51608	S477	NREEPVDSRTPVTER	62 / 8 AA	52
Phosphosite 13:	LPO	P22079	S348	LPYLPYDSKKPSPCE	85 / 7 AA	80
Phosphosite 14:	CHD-2	O14647	S1799	SQKSPHDSKSPLDHR	75 / 8 AA	211
Phosphosite 15:	MAP3K14	Q99558	S309	SKLACVDSPKPLPGP	85 / 7 AA	104
Phosphosite 16:	SLK	Q9H2G2	S296	HPFVTVDSNKPIREL	71 / 7 AA	143
Phosphosite 17:	PLEKHG3	A1L390	S773	EPVPPVGSKRQVGSR	55 / 9 AA	134
Phosphosite 18:	ARFGEF3	Q5TH69	S338	RLVGSVDSMKPVLQS	62 / 8 AA	241
Phosphosite 19:	SCN4A	P35499	S950	TFSEPEDSKKPPQPL	85 / 7 AA	208
Phosphosite 20:	USP24	Q9UPU5	S1682	DYLPPVDSRSSSGFV	83 / 6 AA	294