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:	S813
P-Site Sequence:	RYRARRDSLKKRPVS
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	S813	RYRARRDSLKKRPVS	100 / 9 AA	133
Phosphosite 1:	USP8	P40818	S994	HCRARRDSLKKIEIW	100 / 8 AA	128
Phosphosite 2:	LATS2	Q9NRM7	S380	ATLARRDSLQKPGLE	87 / 8 AA	120
Phosphosite 3:	MAST3	O60307	S1262	HLSERRDSFKKQEAV	66 / 9 AA	143
Phosphosite 4:	ARHGAP13	Q7Z6B7	S926	TNISRHDSLKKIDSP	75 / 8 AA	124
Phosphosite 5:	MS4A6E	Q96DS6	S36	PTNQGQDSLKKRLQA	85 / 7 AA	16
Phosphosite 6:	SPTAN1	Q13813	S2060	AIEARHASLMKRWSQ	66 / 9 AA	285
Phosphosite 7:	GRIN2B	Q13224	S1088	RKQQYKDSLKKRPAS	85 / 7 AA	166
Phosphosite 8:	GEMIN6	Q8WXD5	S105	DLEERKNSLKKWLEK	55 / 9 AA	19
Phosphosite 9:	SPEN	Q96T58	S1364	NSIIKRDSLRKRSVR	75 / 8 AA	402
Phosphosite 10:	KIAA1109	Q2LD37	S4378	SSVPRRDSLSKTSTP	75 / 8 AA	555
Phosphosite 11:	SYTL4	Q96C24	S217	DSTSRRDSLDKSGLF	75 / 8 AA	76
Phosphosite 12:	GPR124	Q96PE1	S1279	RRSASRDSLKGGGAL	85 / 7 AA	143
Phosphosite 13:	MAST2	Q6P0Q8	S1491	DRAERRESLQKQEAI	55 / 9 AA	196
Phosphosite 14:	MTM1	Q13496	S320	NIHVMRESLKKVKDI	62 / 8 AA	70
Phosphosite 15:	XRRA1	Q6P2D8	S61	AQAERRESLKATSFE	71 / 7 AA	90
Phosphosite 16:	MS4A6A	Q9H2W1	S36	PTNQGQDSLKKHLHA	71 / 7 AA	27
Phosphosite 17:	NCK2	O43639	S61	NYVERKNSLKKGSLV	62 / 8 AA	43
Phosphosite 18:	EPSTI1	Q96J88	S239	RSWAYRDSLKAEENR	85 / 7 AA	37
Phosphosite 19:	CGREF1	Q99674	S201	QVEARRESLDPVQEP	83 / 6 AA	32
Phosphosite 20:	Fused	Q9NRP7	S586	EQTLRRDSLMCFTVL	83 / 6 AA	144