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:	PTPN21
Human P-Site:	Y445
P-Site Sequence:	SAVIPPSYRPTPDYE
UniProt:	Q16825
Intern. Prot. ID:	IPI00004388

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PTPN21	Q16825	Y445	SAVIPPSYRPTPDYE	100 / 9 AA	133
Phosphosite 1:	PTPN21	Q16825	S444	HSAVIPPSYRPTPDY	100 / 8 AA	133
Phosphosite 2:	PTPN14	Q15678	Y439	SAIIVPSYRPTPDYE	88 / 9 AA	135
Phosphosite 3:	PTPN14	Q15678	S438	HSAIIVPSYRPTPDY	87 / 8 AA	135
Phosphosite 4:	API5	Q9BZZ5	S434	DLFHIPPSYKSTVTL	75 / 8 AA	58
Phosphosite 5:	Rab11FIP1	Q6WKZ4	Y398	KSMTLPSYRPAPLVS	85 / 7 AA	137
Phosphosite 6:	MAST4	O15021	S1319	SPTPSYRSTPDFPSG	85 / 7 AA	284
Phosphosite 7:	PTPN21	Q16825	T448	IPPSYRPTPDYETVM	100 / 6 AA	133
Phosphosite 8:	PTPN14	Q15678	T442	IVPSYRPTPDYETVM	100 / 6 AA	135
Phosphosite 9:	CDC25A	P30304	Y486	SYCEPPSYRPMHHED	85 / 7 AA	59
Phosphosite 10:	MAST4	O15021	Y1317	PRSPTPSYRSTPDFP	85 / 7 AA	284
Phosphosite 11:	FAT2	Q9NYQ8	Y153	PLFSPPSYRVTISED	85 / 7 AA	479
Phosphosite 12:	NFAT3	Q14934	S757	PQTGPPPSYRPGLRM	100 / 6 AA	95
Phosphosite 13:	NFAT3	Q14934	Y758	QTGPPPSYRPGLRMF	100 / 6 AA	95
Phosphosite 14:	PNPLA1	Q8N8W4	Y165	CGLIPPTYRGVRYID	83 / 6 AA	58
Phosphosite 15:	CYYR1	Q96J86	Y132	CADLPPPYSPTPQGP	66 / 9 AA	17
Phosphosite 16:	FLJ34931	A6NGG8	S1015	RRRSLPSSYRPAQPS	62 / 8 AA	140
Phosphosite 17:	CAST	P20810	Y481	EETIPPDYRLEEVKD	83 / 6 AA	77
Phosphosite 18:	STK24	Q9Y6E0	S272	ACLNKEPSFRPTAKE	83 / 6 AA	49
Phosphosite 19:	MST4	Q9P289	S260	ACLNKDPSFRPTAKE	83 / 6 AA	47
Phosphosite 20:	TRAF4AF1	Q9Y448	Y31	SHPLPPSYRKFLFET	83 / 6 AA	35