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:	STAT3
Human P-Site:	S273
P-Site Sequence:	WITSLAESQLQTRQQ
UniProt:	P40763
Intern. Prot. ID:	IPI00784414

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	STAT3	P40763	S273	WITSLAESQLQTRQQ	100 / 9 AA	88
Phosphosite 1:	AMPD2	Q01433	S138	FTRSLAESELRSAPY	66 / 9 AA	101
Phosphosite 2:	MED24	O75448	S886	MSSSLSASQLHTVNM	66 / 9 AA	110
Phosphosite 3:	DKFZP434L1717	Q9H0I9	S280	AIVKLIESQIQTNEN	75 / 8 AA	68
Phosphosite 4:	TKTL1	P51854	S250	AIIKLIESQIQTSRN	75 / 8 AA	65
Phosphosite 5:	PHTF1	Q9UMS5	S340	DSDSLAESEFESAAF	55 / 9 AA	87
Phosphosite 6:	DARPP-32	Q9UD71	S88	AVQRIAESHLQSISN	62 / 8 AA	23
Phosphosite 7:	CCDC99	Q96EA4	S562	SPRLAAESKLQTEVK	85 / 7 AA	70
Phosphosite 8:	AKAP9	Q99996	S3869	NPGSLACSQLQNYDP	77 / 9 AA	454
Phosphosite 9:	MYO5A	Q9Y4I1	S1351	QANRLLESQLQSQKR	75 / 8 AA	215
Phosphosite 10:	SPHK1IP	Q2M3C7	S398	YATNLAESVLQDAFI	75 / 8 AA	186
Phosphosite 11:	CC2D1A	Q6P1N0	S944	YRRNLVESELQRLRR	62 / 8 AA	104
Phosphosite 12:	PLA2G4B	P0C869	S377	KLGVLAPSQLQRYRQ	85 / 7 AA	114
Phosphosite 13:	POMT2	Q9UKY4	S12	TGGGLAESELRPRRG	62 / 8 AA
Phosphosite 14:	NEK10	Q6ZWH5	S239	ALASLAESQECREKI	100 / 6 AA	133
Phosphosite 15:	AlphaK1	Q96L96	T871	MTQGRAETQLETTQA	71 / 7 AA	201
Phosphosite 16:	C9orf63	Q9NWJ4	S67	SPISLAGSQLTREPV	85 / 7 AA	13
Phosphosite 17:	CEP68	Q76N32	S684	EHQSLTESVLQKGEI	75 / 8 AA	81
Phosphosite 18:	POLH	Q9Y253	S284	ELTQFTESQLQSHFG	62 / 8 AA	78
Phosphosite 19:	AFF3	P51826	S921	SKKPKADSQLQPHGG	83 / 6 AA	133
Phosphosite 20:	FAM83F	Q8NEG4	S4	____MAESQLNCLDE	83 / 6 AA	55