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:	EP300
Human P-Site:	S268
P-Site Sequence:	PGQQIGASGLGLQIQ
UniProt:	Q09472
Intern. Prot. ID:	IPI00020985

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	EP300	Q09472	S268	PGQQIGASGLGLQIQ	100 / 9 AA	264
Phosphosite 1:	GAB3	Q8WWW8	S403	MSPQAGASGLGPHCS	87 / 8 AA	66
Phosphosite 2:	P2RX5	Q93086	S369	QEAEDEASGLGLSEQ	66 / 9 AA	47
Phosphosite 3:	NPAS2	Q99743	S400	NALDVGASGLNTSHS	71 / 7 AA	92
Phosphosite 4:	ALDH3B1	P43353	S408	PFGGVGASGMGRYHG	71 / 7 AA	52
Phosphosite 5:	CUBN	O60494	S2697	GGIQIGDSGVITSPN	71 / 7 AA	399
Phosphosite 6:	MYLK3	Q32MK0	S210	RLPPIRASGLGADPA	75 / 8 AA	88
Phosphosite 7:	SASH1	O94885	S918	LEGSIAASGRGLSPP	75 / 8 AA	137
Phosphosite 8:	GIGYF1	O75420	S836	DKSGGGSSGLGLWED	85 / 7 AA	115
Phosphosite 9:	KIAA1539	Q7L5A3	S377	FTAEIGASGSYCPQH	83 / 6 AA	57
Phosphosite 10:	CACNA1F	O60840	S43	EGESSGASGLGTPKR	100 / 6 AA	221
Phosphosite 11:	ANKRD43	Q2M3V2	S264	RRLSVEESGLGLGLG	62 / 8 AA	57
Phosphosite 12:	LTK	P29376	T804	PTPEEEGTSGLGNRS	62 / 8 AA	92
Phosphosite 13:	CC2D2A	Q9P2K1	S843	AISSIGTSGLTDMKK	83 / 6 AA	186
Phosphosite 14:	FMR1	Q06787	S447	QLRQIGASSRPPPNR	83 / 6 AA	71
Phosphosite 15:	HUWE1	Q7Z6Z7	S3753	QTGRLGSSGLGSASS	62 / 8 AA	482
Phosphosite 16:	SERPINH1	P50454	S77	SPVVVASSLGLVSLG	62 / 8 AA	46
Phosphosite 17:	SERPINH1	P50454	S76	VSPVVVASSLGLVSL	62 / 8 AA	46
Phosphosite 18:	SYNJ2BP	P57105	S21	INLTRGPSGLGFNIV	71 / 7 AA	16
Phosphosite 19:	HK3	P52790	S7	_MDSIGSSGLRQGEE	83 / 6 AA	99