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:	S554
P-Site Sequence:	LQAQDYPSPNIMRTQ
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	S554	LQAQDYPSPNIMRTQ	100 / 9 AA	133
Phosphosite 1:	PTPN21	Q16825	Y552	AQLQAQDYPSPNIMR	100 / 7 AA	133
Phosphosite 2:	SLA	Q13239	S35	AVLSDYPSPDISPPI	85 / 7 AA	31
Phosphosite 3:	MAML1	Q92585	S360	QPRADNPSPNLMPAS	75 / 8 AA	108
Phosphosite 4:	VRK2	Q86Y07	S438	EPHQDFTSPDIFKKS	55 / 9 AA	58
Phosphosite 5:	SLAIN2	Q9P270	S160	RQVLDYPSPDVECAK	71 / 7 AA	63
Phosphosite 6:	VRK2	Q86Y07	T437	YEPHQDFTSPDIFKK	62 / 8 AA	58
Phosphosite 7:	ANKAR	Q7Z5J8	S1096	QLLRNHPSPNIKVEV	55 / 9 AA	162
Phosphosite 8:	ISM2	Q6H9L7	S277	EEDEDYPSEDIEGED	62 / 8 AA	64
Phosphosite 9:	GGTLC2	Q14390	S82	DEMDDFSSPNITNEF	55 / 9 AA	24
Phosphosite 10:	STAG1	Q8WVM7	Y996	QNQKGQEYPPPNLAF	71 / 7 AA	144
Phosphosite 11:	ALS2CR11	Q53TS8	S37	LQRNPYSSPDIMHIK	71 / 7 AA	71
Phosphosite 12:	GGTLC2	Q14390	S81	NDEMDDFSSPNITNE	62 / 8 AA	24
Phosphosite 13:	EYA3	Q99504	T199	ISNQDYPTYTILGQN	55 / 9 AA	63
Phosphosite 14:	SLAIN2	Q9P270	Y158	WCRQVLDYPSPDVEC	83 / 6 AA	63
Phosphosite 15:	KIAA1117	Q5JWR5	S2001	RNLEVKPSPKIMVDG	83 / 6 AA	277
Phosphosite 16:	L3MBTL	Q9Y468	Y416	PLTPPQDYPDPDNFC	71 / 7 AA	86
Phosphosite 17:	TAF2	Q6P1X5	T553	LEIKQDYTSPGTQKY	62 / 8 AA	137
Phosphosite 18:	SMARCA4	P51532	S122	QHSQGYPSPLGGSEH	83 / 6 AA	185
Phosphosite 19:	FILIP1	Q7Z7B0	S957	PRITIIPSPNVMPQK	83 / 6 AA	138
Phosphosite 20:	NBEAL2	Q6ZNJ1	S2108	WVLQDYVSPTLDLSN	62 / 8 AA	303