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:	S2778
P-Site Sequence:	TKCKQRASANENSRF
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	S2778	TKCKQRASANENSRF	100 / 9 AA	402
Phosphosite 1:	RAB6IP1	Q6IQ26	T276	IICQRPSTNELPLFD	71 / 7 AA	147
Phosphosite 2:	RAB6IP1	Q6IQ26	S275	PIICQRPSTNELPLF	71 / 7 AA	147
Phosphosite 3:	Death domain-containing protein 1	Q6ZMT9	S530	IDHKRRASATINRIT	66 / 9 AA	102
Phosphosite 4:	TESSP5	Q7RTY3	S129	SQVKQRFSANSMLTP	85 / 7 AA	29
Phosphosite 5:	HP	P00738	S257	IKLKQKVSVNERVMP	62 / 8 AA	45
Phosphosite 6:	ZNF233	A6NK53	T337	QPHQRVSTGENLYRC	62 / 8 AA	77
Phosphosite 7:	MEKK3	Q99759	S612	VEARQRPSAEELLTH	62 / 8 AA	71
Phosphosite 8:	ZNF233	A6NK53	S336	LQPHQRVSTGENLYR	62 / 8 AA	77
Phosphosite 9:	Asxl3	Q9C0F0	S667	DKYNQRNSTDENFHA	55 / 9 AA	242
Phosphosite 10:	PNPT1	Q8TCS8	S599	TISKPRASRKENGPV	66 / 9 AA	86
Phosphosite 11:	Asxl3	Q9C0F0	T668	KYNQRNSTDENFHAS	62 / 8 AA	242
Phosphosite 12:	CHD-2	O14647	S1099	KRQAQRSSASESETE	62 / 8 AA	211
Phosphosite 13:	SYN2	Q92777	S558	ESSFFRSSANEDEAK	71 / 7 AA	63
Phosphosite 14:	C1orf51	Q8N365	S85	SHPKQRGSASPMAGS	71 / 7 AA	41
Phosphosite 15:	C1orf96	Q6IQ19	S252	KNRKMKASSSENPWM	55 / 9 AA	30
Phosphosite 16:	TOP2B	Q02880	S1550	GAKKRKASGSENEGD	55 / 9 AA	183
Phosphosite 17:	Kv3.1	P48547	T342	GHTLRASTNEFLLLI	71 / 7 AA	58
Phosphosite 18:	KIF14	Q15058	T558	LGNKQRATAATGMND	83 / 6 AA	186
Phosphosite 19:	MFSD7	Q6UXD7	T162	FPEHQRATANMLATM	83 / 6 AA
Phosphosite 20:	GRK2	P25098	S685	VPLVQRGSANGL___	83 / 6 AA	80