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:	Y551
P-Site Sequence:	RYVLDDEYTSSVGSK
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	Y551	RYVLDDEYTSSVGSK	100 / 9 AA	76
Phosphosite 1:	Btk	Q06187	T552	YVLDDEYTSSVGSKF	100 / 8 AA	76
Phosphosite 2:	BMX	P51813	Y566	RYVLDDQYVSSVGTK	77 / 9 AA	78
Phosphosite 3:	ITK	Q08881	Y512	RFVLDDQYTSSTGTK	77 / 9 AA	72
Phosphosite 4:	TEC	P42680	Y519	RYVLDDQYTSSSGAK	87 / 8 AA	74
Phosphosite 5:	Btk	Q06187	S553	VLDDEYTSSVGSKFP	100 / 7 AA	76
Phosphosite 6:	TXK	P42681	Y420	RYVLDDEYVSSFGAK	87 / 8 AA	61
Phosphosite 7:	MAGE-D4	Q96JG8	Y356	SKHLDDEYESSEEER	87 / 8 AA	81
Phosphosite 8:	C1orf85	Q8WWB7	Y260	QHSIDDEYAPAVFQL	55 / 9 AA	44
Phosphosite 9:	ITK	Q08881	T513	FVLDDQYTSSTGTKF	75 / 8 AA	72
Phosphosite 10:	TEC	P42680	T520	YVLDDQYTSSSGAKF	85 / 7 AA	74
Phosphosite 11:	SLC27A4	Q6P1M0	S112	RQLDEYSSSVANFLQ	85 / 7 AA	72
Phosphosite 12:	GUF1	Q8N442	Y421	NQRLEQEYNASVILT	55 / 9 AA	74
Phosphosite 13:	SLC27A4	Q6P1M0	Y110	TFRQLDEYSSSVANF	85 / 7 AA	72
Phosphosite 14:	PPPDE1	Q9BSY9	Y20	DMYWMNEYTSSIGIG	71 / 7 AA	21
Phosphosite 15:	C11orf53	Q8IXP5	T35	QFSNDVYTSSVGKPF	75 / 8 AA	25
Phosphosite 16:	C11orf53	Q8IXP5	Y34	KQFSNDVYTSSVGKP	75 / 8 AA	25
Phosphosite 17:	Btk	Q06187	S554	LDDEYTSSVGSKFPV	100 / 6 AA	76
Phosphosite 18:	MAGE-C1	O60732	Y878	SSSPVDEYTSSSDTL	100 / 6 AA	124
Phosphosite 19:	PIK3AP1	Q6ZUJ8	Y230	EAKVENEYTISVKAP	55 / 9 AA	90
Phosphosite 20:	K6IRS3	Q86Y46	Y449	ECRMSGEYTNSVSIS	55 / 9 AA	59