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:	T16
P-Site Sequence:	LKRTRRYTVSSKSCL
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	T16	LKRTRRYTVSSKSCL	100 / 9 AA	133
Phosphosite 1:	PTPN21	Q16825	Y15	KLKRTRRYTVSSKSC	100 / 8 AA	133
Phosphosite 2:	PTPN21	Q16825	S18	RTRRYTVSSKSCLVA	100 / 7 AA	133
Phosphosite 3:	mGluR3	Q14832	T718	APGTRRYTLAEKRET	66 / 9 AA	99
Phosphosite 4:	RPP30	P78346	T169	DSTMRRYTISSALNL	85 / 7 AA	29
Phosphosite 5:	RFX6	Q8HWS3	S232	GGFTRKYSLSSKTGT	66 / 9 AA	102
Phosphosite 6:	RPP30	P78346	Y168	KDSTMRRYTISSALN	85 / 7 AA	29
Phosphosite 7:	cIAP2	Q13489	Y245	QLQDTSRYTVSNLSM	75 / 8 AA	68
Phosphosite 8:	cIAP2	Q13489	T246	LQDTSRYTVSNLSMQ	75 / 8 AA	68
Phosphosite 9:	PALLD	Q8WX93	T1307	KEDAGWYTVSAKNEA	71 / 7 AA	151
Phosphosite 10:	SEMA3F	Q13275	T577	GQACSRYTASSKRRS	85 / 7 AA	88
Phosphosite 11:	MARCH-X	Q8NA82	T147	KPNLRRFTVSPESHS	62 / 8 AA	91
Phosphosite 12:	SEMA3F	Q13275	S579	ACSRYTASSKRRSRR	85 / 7 AA	88
Phosphosite 13:	IGSF10	Q6WRI0	T2097	GHRTRRYTLFNNGTL	55 / 9 AA	291
Phosphosite 14:	SRF	P11831	T159	DNKLRRYTTFSKRKT	75 / 8 AA	52
Phosphosite 15:	SLC12A5	Q9H2X9	T6	__MSRRFTVTSLPPA	62 / 8 AA	126
Phosphosite 16:	TSNARE1	Q96NA8	Y161	KAEPTRRYRVWSRIL	75 / 8 AA	56
Phosphosite 17:	PTPN21	Q16825	S19	TRRYTVSSKSCLVAR	100 / 6 AA	133
Phosphosite 18:	CAPN7	Q9Y6W3	T276	NNPTMIYTVSSFSIK	75 / 8 AA	93
Phosphosite 19:	SOCS5	O75159	Y156	LQRRERRYGVSSVHD	85 / 7 AA	61
Phosphosite 20:	FLNA	P21333	T2336	SGDARRLTVSSLQES	75 / 8 AA	281