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:	PTGER1
Human P-Site:	S393
P-Site Sequence:	WEASSLRSSRHSGLS
UniProt:	P34995
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PTGER1	P34995	S393	WEASSLRSSRHSGLS	100 / 9 AA	42
Phosphosite 1:	PTGER1	P34995	S394	EASSLRSSRHSGLSH	100 / 8 AA	42
Phosphosite 2:	ZNF503	Q96F45	S12	PSLSALRSSKHSGGG	77 / 9 AA	63
Phosphosite 3:	KRTAP26-1	Q6PEX3	T18	SNSGSLRTSRHIPLT	75 / 8 AA	23
Phosphosite 4:	KRTAP26-1	Q6PEX3	S19	NSGSLRTSRHIPLTS	85 / 7 AA	23
Phosphosite 5:	C6orf134	Q5SQI0	T204	PAPSLRATRHSRAAA	75 / 8 AA	47
Phosphosite 6:	GTF3C1	Q12789	T598	ESSSSLKTGRHSSGQ	66 / 9 AA	239
Phosphosite 7:	ZNF503	Q96F45	S13	SLSALRSSKHSGGGG	75 / 8 AA	63
Phosphosite 8:	RTTN	Q86VV8	S197	SNESSLRSSNHTLIW	77 / 9 AA	249
Phosphosite 9:	USP48	Q86UV5	S601	VGKSSLRSWRQLALE	75 / 8 AA	119
Phosphosite 10:	BRWD2	Q9BZH6	S790	QMVSSLRSGRNVTFR	75 / 8 AA	137
Phosphosite 11:	CACNB3	P54284	S421	WTGSSQRSSRHLEED	87 / 8 AA	55
Phosphosite 12:	Thsd4	Q6ZMP0	S140	GPTVLRGSRHPQPQG	71 / 7 AA	112
Phosphosite 13:	Peptidase D	P12955	T399	PGLRSLRTARHLQPG	71 / 7 AA	54
Phosphosite 14:	HSPA12B	Q96MM6	S291	AREQLRRSRHSRTFL	85 / 7 AA	76
Phosphosite 15:	MAST4	O15021	S2619	RGKESLRSSPHKKAL	85 / 7 AA	284
Phosphosite 16:	AFF4	Q9UHB7	S598	DLASSMPSSRHKAAT	75 / 8 AA	127
Phosphosite 17:	PITPNM2	Q9BZ72	S637	SGGSSLESSRHLSRS	87 / 8 AA	149
Phosphosite 18:	MAST4	O15021	S2620	GKESLRSSPHKKAL_	85 / 7 AA	284
Phosphosite 19:	DNMT3L	Q9UJW3	S332	SNIPAIRSSRHWALV	55 / 9 AA	44
Phosphosite 20:	PRPF3	O43395	S75	EAVEEGRSSRHSKSS	100 / 6 AA	78