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:	PTPN22
Human P-Site:	Y721
P-Site Sequence:	QAQSIETYSTSYPDT
UniProt:	Q9Y2R2
Intern. Prot. ID:	IPI00298016

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	PTPN22	Q9Y2R2	Y721	QAQSIETYSTSYPDT	100 / 9 AA	92
Phosphosite 1:	PTPN22	Q9Y2R2	T723	QSIETYSTSYPDTME	100 / 7 AA	92
Phosphosite 2:	UGT1A10	Q9HAW8	Y77	LNCTVKTYSTSYTLE	66 / 9 AA	60
Phosphosite 3:	UGT1A8	Q9HAW9	S78	NCTVKTYSTSYTLED	75 / 8 AA	60
Phosphosite 4:	UGT1A10	Q9HAW8	S78	NCTVKTYSTSYTLED	75 / 8 AA	60
Phosphosite 5:	UGT1A7	Q9HAW7	S78	NCTVKTYSTSYTLED	75 / 8 AA	60
Phosphosite 6:	UGT1A9	O60656	S78	NCTVKTYSTSYTLED	75 / 8 AA	60
Phosphosite 7:	COL29A1	A8TX70	Y405	SYADLETYSTKFLKK	62 / 8 AA	290
Phosphosite 8:	KIAA0552	O60299	Y230	SLTSLPTYSSSYSQH	66 / 9 AA	72
Phosphosite 9:	ARHGEF6	Q15052	Y666	ILKVIEAYCTSANFQ	71 / 7 AA	87
Phosphosite 10:	ARHGEF7	Q14155	Y720	ILKVIEAYCTSAKTR	71 / 7 AA	90
Phosphosite 11:	Smad4	Q13485	Y195	NRASTETYSTPALLA	75 / 8 AA	60
Phosphosite 12:	Smad4	Q13485	T194	SNRASTETYSTPALL	75 / 8 AA	60
Phosphosite 13:	COL29A1	A8TX70	T407	ADLETYSTKFLKKLQ	71 / 7 AA	290
Phosphosite 14:	COL6A3	P12111	T298	RTMFSLDTYSTKAQV	71 / 7 AA	344
Phosphosite 15:	DDEF2	O43150	T247	SLKPSIETLSTDLHT	85 / 7 AA	112
Phosphosite 16:	PTPN22	Q9Y2R2	S724	SIETYSTSYPDTMEN	100 / 6 AA	92
Phosphosite 17:	ABCB1	P08183	Y378	NKPSIDSYSKSGHKP	62 / 8 AA	141
Phosphosite 18:	C9orf24	Q8NCR6	S16	RTPISTYSDSYRAPT	75 / 8 AA	30
Phosphosite 19:	UGT2B7	P16662	Y77	SALKIEIYPTSLTKT	71 / 7 AA	61
Phosphosite 20:	ABCB1	P08183	S377	DNKPSIDSYSKSGHK	62 / 8 AA	141