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:	CD28
Human P-Site:	T202
P-Site Sequence:	TPRRPGPTRKHYQPY
UniProt:	P10747
Intern. Prot. ID:	IPI00022339

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	CD28	P10747	T202	TPRRPGPTRKHYQPY	100 / 9 AA	25
Phosphosite 1:	SYNJ1	O43426	T1138	GARSPAPTRKEFGGI	62 / 8 AA	173
Phosphosite 2:	EIF2B4	Q9UI10	T169	PERQQVPTRKDYGSK	55 / 9 AA	58
Phosphosite 3:	POMT2	Q9UKY4	Y437	APMTRKHYQVTGYGI	100 / 5 AA
Phosphosite 4:	ROBO2	Q9HCK4	T1288	QSQRPRPTKKHKGGR	75 / 8 AA	151
Phosphosite 5:	CD28	P10747	Y206	PGPTRKHYQPYAPPR	100 / 5 AA	25
Phosphosite 6:	Enamelin	Q9NRM1	T682	LSFKGGPTVRHYEGE	55 / 9 AA	129
Phosphosite 7:	GARNL3	Q5VVW2	S39	GCRRGDFSRKHYGSV	55 / 9 AA	113
Phosphosite 8:	UBE2O	Q9C0C9	T995	LIKGPTRTPYEDGLY	71 / 7 AA	141
Phosphosite 9:	PBRM1	Q86U86	S32	SVSTPGPSRKRRRLS	71 / 7 AA	193
Phosphosite 10:	NCoA5	Q9HCD5	T11	APSRPSPTRRDPYGF	62 / 8 AA	66
Phosphosite 11:	GCH1	P30793	S33	DPPRPGPSRPAEKPP	83 / 6 AA	28
Phosphosite 12:	SERINC2	Q96SA4	T416	NWYKPGETRKMISTW	71 / 7 AA	51
Phosphosite 13:	IKKe	Q14164	T675	IAPYPSPTRKDLLLH	71 / 7 AA	80
Phosphosite 14:	KCNIP2	Q9NS61	T31	TGHPPGPTKKALKQR	83 / 6 AA	31
Phosphosite 15:	NCoA5	Q9HCD5	S9	NTAPSRPSPTRRDPY	71 / 7 AA	66
Phosphosite 16:	SH3D19	Q5HYK7	T253	RAVQPAPTRKPTVIR	71 / 7 AA	87
Phosphosite 17:	RP1	P56715	S1650	KPSFFPGSTRKSQVC	83 / 6 AA	241
Phosphosite 18:	HGK	O95819	T896	EAIRQDPTRKGSVVN	71 / 7 AA	142
Phosphosite 19:	NUDT19	A8MXV4	S10	SSLRPGPSRWRRAAS	83 / 6 AA	42
Phosphosite 20:	OPTN	Q96CV9	T202	IKHSPGPTRTVSTGT	83 / 6 AA	66