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:	Btk
Human P-Site:	Y263
P-Site Sequence:	DKNGQEGYIPSNYVT
UniProt:	Q06187
Intern. Prot. ID:	IPI00029132

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	Btk	Q06187	Y263	DKNGQEGYIPSNYVT	100 / 9 AA	76
Phosphosite 1:	TEC	P42680	Y228	DKYGNEGYIPSNYVT	88 / 9 AA	74
Phosphosite 2:	Src	P12931	Y134	LSTGQTGYIPSNYVA	88 / 9 AA	60
Phosphosite 3:	PPP1R13L	Q8WUF5	Y809	ALHGQEGYVPRNYFG	77 / 9 AA	89
Phosphosite 4:	AHI1	Q8N157	Y1100	IGKGQEGYFPANHVA	77 / 9 AA	137
Phosphosite 5:	EPS8L1	Q8TE68	Y526	DPAGQEGYVPYNILT	77 / 9 AA	80
Phosphosite 6:	Hck	P08631	Y127	LATRKEGYIPSNYVA	87 / 8 AA	60
Phosphosite 7:	ITK	Q08881	Y220	DRNGHEGYVPSSYLV	66 / 9 AA	72
Phosphosite 8:	EPS8L2	Q9H6S3	Y540	SRSGQAGYVPCNILG	66 / 9 AA	81
Phosphosite 9:	YES1	P07947	Y141	IATGKNGYIPSNYVA	77 / 9 AA	61
Phosphosite 10:	EPS8L3	Q8TE67	Y498	NEAGRSGYIPSNILE	77 / 9 AA	67
Phosphosite 11:	Fyn	P06241	Y132	LTTGETGYIPSNYVA	77 / 9 AA	61
Phosphosite 12:	GRAP2	O75791	Y45	ELGSQEGYVPKNFID	66 / 9 AA	38
Phosphosite 13:	DNMBP	Q6XZF7	Y1565	EVNGKKGYVPSNYIR	66 / 9 AA	177
Phosphosite 14:	BZRAP1	O95153	Y1682	EGGGRTGYIPCNMVA	66 / 9 AA	200
Phosphosite 15:	DENND2A	Q9ULE3	Y74	RADGQEDYLPSSTVE	66 / 9 AA	114
Phosphosite 16:	FRK	P42685	Y99	SSQQLQGYIPSNYVA	85 / 7 AA	58
Phosphosite 17:	IL12RB2	Q99665	Y800	DLPTHDGYLPSNIDD	62 / 8 AA	97
Phosphosite 18:	Src	P12931	T132	HSLSTGQTGYIPSNY	85 / 7 AA	60
Phosphosite 19:	DGKE	P52429	Y301	KIKGQEKYIPQVAVL	85 / 7 AA	64
Phosphosite 20:	TIGD6	Q17RP2	Y302	LERIQVGYLPSNCTA	75 / 8 AA	59