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:	CTLA-4
Human P-Site:	Y201
P-Site Sequence:	SPLTTGVYVKMPPTE
UniProt:	P16410
Intern. Prot. ID:	IPI00028559

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CTLA-4	P16410	Y201	SPLTTGVYVKMPPTE	100 / 9 AA	25
Phosphosite 1:	PRSS23	O95084	Y321	GASGSGVYVRMWKRQ	71 / 7 AA	43
Phosphosite 2:	PRKAA2	P54646	Y450	KNPVTGNYVKMSLQL	75 / 8 AA	62
Phosphosite 3:	KIF3B	O15066	Y175	ERPDTGVYVKDLSSF	100 / 6 AA	85
Phosphosite 4:	SHISA2	Q6UWI4	Y217	EGTMNNVYVNMPTNF	62 / 8 AA	31
Phosphosite 5:	OTOG	Q6ZRI0	Y270	WDGASAVYIKMSPEL	44 / 9 AA	315
Phosphosite 6:	CTLA-4	P16410	T198	KKRSPLTTGVYVKMP	100 / 6 AA	25
Phosphosite 7:	CD47	Q08722	Y55	AQNTTEVYVKWKFKG	85 / 7 AA	35
Phosphosite 8:	SDS	P20132	Y28	KMAGTSVYLKMDSAQ	71 / 7 AA	35
Phosphosite 9:	KIF3C	O14782	Y176	ENPETGVYIKDLSSF	83 / 6 AA	89
Phosphosite 10:	MEK5	Q13163	Y252	DGGSLDVYRKMPEHV	71 / 7 AA	50
Phosphosite 11:	SYT10	Q6XYQ8	Y270	FTGTSDPYVKMYLLP	62 / 8 AA	59
Phosphosite 12:	HCST	Q9UBK5	Y86	AQEDGKVYINMPGRG	66 / 6 AA	9
Phosphosite 13:	CTSL1	P07711	Y311	EEWGMGGYVKMAKDR	71 / 7 AA	38
Phosphosite 14:	OCC1	Q8TAD7	Y42	RRNYGGVYVGLPSEA	71 / 7 AA	6
Phosphosite 15:	SCRT1	Q9BWW7	S233	TCGKVYVSMPAMAMH	83 / 6 AA	36
Phosphosite 16:	LSM3	P62310	Y30	LSLDERIYVKMRNDR	66 / 6 AA	12
Phosphosite 17:	IVD	P26440	Y274	GHENKGVYVLMSGLD	55 / 9 AA	46
Phosphosite 18:	GRIN2A	Q12879	Y1454	SCSNRRVYKKMPSIE	83 / 6 AA	165
Phosphosite 19:	GRIP1	Q9Y3R0	Y1030	GLLEKGVYVKNIRPA	100 / 5 AA	122
Phosphosite 20:	ECM29	Q5VYK3	Y102	VTNFTIIYVKMGYPR	71 / 7 AA	204