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:	S954
P-Site Sequence:	NTGYINASHIKVSVS
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	S954	NTGYINASHIKVSVS	100 / 9 AA	133
Phosphosite 1:	PTP1B	P18031	S70	DNDYINASLIKMEEA	77 / 9 AA	50
Phosphosite 2:	PTPRN2	Q92932	S804	HSDYINASPIMDHDP	75 / 8 AA	111
Phosphosite 3:	PTPRN	Q16849	S768	RSDYINASPIIEHDP	85 / 7 AA	106
Phosphosite 4:	PTPRS	Q13332	S1739	GSDYINASFIDGYRQ	75 / 8 AA	217
Phosphosite 5:	PTPRD	P23468	S1703	GSDYINASFIDGYRQ	75 / 8 AA	215
Phosphosite 6:	TTC35	Q15006	S237	FGLYMSASHIASNPK	71 / 7 AA	35
Phosphosite 7:	TRIOBP	Q9H2D6	S2329	QDVYVELSHIKTRSE	62 / 8 AA	261
Phosphosite 8:	UBR4	Q5T4S7	S3548	PFCYIKLSSIKVDTR	66 / 9 AA	574
Phosphosite 9:	KLF6	Q99612	S53	EPCYVSASEIKFDSQ	62 / 8 AA	32
Phosphosite 10:	PTPN2	P17706	S72	ENDYINASLVDIEEA	55 / 9 AA	49
Phosphosite 11:	PTPN23	Q9H3S7	S1247	KDDYINASCVEGLSP	62 / 8 AA	179
Phosphosite 12:	PTPN20A	Q4JDL3	Y213	KDYINASYIRIVNCG	62 / 8 AA	48
Phosphosite 13:	AKR1E2	Q96JD6	S272	IPGSITPSHIKENIQ	71 / 7 AA	37
Phosphosite 14:	CCDC108	Q6ZU64	S301	LLEPGQASQIKVTFQ	83 / 6 AA	217
Phosphosite 15:	PTPRH	Q9HD43	S878	GSDYINASFMPGLWS	71 / 7 AA	122
Phosphosite 16:	PTPRF	P10586	S1698	GSDYINASFLDGYRQ	62 / 8 AA	211
Phosphosite 17:	Pxdn	Q92626	S913	LTSYIDASNVYGSTE	57 / 7 AA	167
Phosphosite 18:	C12orf68	Q52MB2	S70	GALDEQASHIQVLSD	83 / 6 AA	20
Phosphosite 19:	POLR3H	Q9Y535	S66	VFPGDGASHTKVHFR	71 / 7 AA	23
Phosphosite 20:	PLTP	P55058	S119	DGGYINASAEGVSIR	66 / 9 AA	55