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:	S557
P-Site Sequence:	EYTSSVGSKFPVRWS
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	S557	EYTSSVGSKFPVRWS	100 / 9 AA	76
Phosphosite 1:	ITK	Q08881	T518	QYTSSTGTKFPVKWA	77 / 9 AA	72
Phosphosite 2:	PCDHGA9	Q9Y5G4	S797	PLCVSVDSKFPIEDT	75 / 8 AA	102
Phosphosite 3:	FGD4	Q96M96	S463	PKFSLVGSKFTVRTR	77 / 9 AA	87
Phosphosite 4:	ZNF518B	Q9C0D4	S123	NFSSSVNSKFKVRNF	77 / 9 AA	120
Phosphosite 5:	FAM75-like protein FLJ43859	Q6ZUB0	S228	QPVSPLDSKFPIDHS	55 / 9 AA	102
Phosphosite 6:	Protein FAM75D1	Q6ZQQ2	S231	QPVSPLDSKFPIDHS	55 / 9 AA	176
Phosphosite 7:	Putative FAM75-like protein FLJ44082	P0C874	S228	QPVSPLDSKFPIDHS	55 / 9 AA	102
Phosphosite 8:	PCDHGB1	Q9Y5G3	Y188	ESPDGSKYPVLLLEK	83 / 6 AA	100
Phosphosite 9:	BMP2	P12643	S184	IKPATANSKFPVTRL	55 / 9 AA	45
Phosphosite 10:	MYO5C	Q9NQX4	S626	HFRTTVGSKFRSSLY	62 / 8 AA	203
Phosphosite 11:	TJP2	Q9UDY2	S713	LTAVVSVSTKFPAYE	71 / 7 AA	134
Phosphosite 12:	C20orf95	Q5TG30	S154	AQLSSGASKFPPAAE	75 / 8 AA	69
Phosphosite 13:	CD45	P08575	S663	QSIPRVFSKFPIKEA	55 / 9 AA	150
Phosphosite 14:	MDN1	Q9NU22	T3448	AFPSVGPTFPTYYAH	71 / 7 AA	633
Phosphosite 15:	TRRAP	Q9Y4A5	S2234	PSTSSVASKYEELEC	71 / 7 AA	438
Phosphosite 16:	ZCCHC14	Q8WYQ9	T846	QQYGGGSTFPVVHAP	83 / 6 AA	100
Phosphosite 17:	PCDHGA10	Q9Y5H3	S801	PLSLLDDSKFPIEDT	66 / 6 AA	101
Phosphosite 18:	USP21	Q9UK80	S25	NIQPRVGSKLPFAPR	62 / 8 AA	63
Phosphosite 19:	DSG2	Q14126	S887	NTYSSGSSFPVPKSL	75 / 8 AA	122
Phosphosite 20:	Btk	Q06187	S554	LDDEYTSSVGSKFPV	100 / 6 AA	76