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:	Y218
P-Site Sequence:	CEKQFQPYFIPIN__
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	Y218	CEKQFQPYFIPIN__	100 / 9 AA	25
Phosphosite 1:	PAF1	Q8N7H5	Y260	EGNQFVAYFLPVEET	55 / 9 AA	60
Phosphosite 2:	SLC29A1	Q99808	Y327	GSSTWERYFIPVSCF	50 / 8 AA	50
Phosphosite 3:	THEMIS2	Q5TEJ8	Y80	LAPNFQGYFTPLNTP	62 / 8 AA	72
Phosphosite 4:	IQCH	Q86VS3	Y156	SSHCTDPYFTPIPVL	71 / 7 AA	117
Phosphosite 5:	INTS4	Q96HW7	Y764	EVDFFQRYFIADLPH	71 / 7 AA	108
Phosphosite 6:	SDR42E1	Q8WUS8	Y252	HIASGQPYFISDGRP	83 / 6 AA	44
Phosphosite 7:	C10orf58	Q9BRX8	Y127	EVKDFQPYFKGEIFL	83 / 6 AA	26
Phosphosite 8:	GPLD1	P80108	Y246	LVEQFQEYFLGGLDD	71 / 7 AA	92
Phosphosite 9:	RICS	A7KAX9	Y1640	HVTQLQPYFENGRVH	83 / 6 AA	231
Phosphosite 10:	C3orf37	Q96FZ2	Y140	GTNQRQPYFIYFPQI	85 / 7 AA	41
Phosphosite 11:	PPP4R2	Q9NY27	Y48	QWSQFKGYFIFKLEK	71 / 7 AA	47
Phosphosite 12:	G2	Q6ZVL6	Y1726	NRPGFTGYFIPTPPS	62 / 8 AA	199
Phosphosite 13:	C18orf8	Q96DM3	Y315	PARSIQPYQIPITGP	75 / 8 AA	75
Phosphosite 14:	DNAJC11	Q9NVH1	Y374	LNRASQTYFFPIHLT	71 / 7 AA	63
Phosphosite 15:	SNX13	Q9Y5W8	Y156	KEIDWQPYFTTRIVD	57 / 7 AA	112
Phosphosite 16:	EIF2AK4	Q9P2K8	S584	SETQRQFSRYFIEFE	71 / 7 AA	187
Phosphosite 17:	EIF2AK4	Q9P2K8	Y586	TQRQFSRYFIEFEEL	71 / 7 AA	187
Phosphosite 18:	DNAH2	Q9P225	Y4084	RLSALETYFIPKDGS	57 / 7 AA	508
Phosphosite 19:	DNAH2	Q9P225	T4083	HRLSALETYFIPKDG	57 / 7 AA	508
Phosphosite 20:	IL28RA	Q8IU57	Y343	DGVSFQPYIEPPSFL	71 / 7 AA	58