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:	Y631
P-Site Sequence:	EKVYTIMYSCWHEKA
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	Y631	EKVYTIMYSCWHEKA	100 / 9 AA	76
Phosphosite 1:	MERTK	Q12866	Y834	DELYEIMYSCWRTDP	77 / 9 AA	110
Phosphosite 2:	Tyro3	Q06418	Y766	EDVYDLMYQCWSADP	62 / 8 AA	97
Phosphosite 3:	SPG11	Q96JI7	Y131	RCDATILYSCSREAL	62 / 8 AA	279
Phosphosite 4:	SPG11	Q96JI7	S132	CDATILYSCSREALQ	62 / 8 AA	279
Phosphosite 5:	CASC5	Q8NG31	Y1145	GASKTILYSCGQDDM	62 / 8 AA	265
Phosphosite 6:	CSMD2	Q7Z408	Y3215	SMGYTLIYSCQEGFS	71 / 7 AA	380
Phosphosite 7:	mGluR1	Q13255	S108	LGSEIRDSCWHSSVA	71 / 7 AA	132
Phosphosite 8:	MAGEA4	P43358	S77	SALPTTISFTCWRQP	57 / 7 AA	35
Phosphosite 9:	NPFFR1	Q9GZQ6	Y201	RNRSYPLYSCWEAWP	80 / 5 AA	48
Phosphosite 10:	HECTD1	Q9ULT8	Y1874	RRIWEPTYTIMYREM	100 / 5 AA	290
Phosphosite 11:	RIPK2	O43353	S241	NPLQIMYSVSQGHRP	57 / 7 AA	61
Phosphosite 12:	HNF4A	P41235	Y94	SVRKNHMYSCRFSRQ	80 / 5 AA	52
Phosphosite 13:	CANX	P27824	T186	FHDKTPYTIMFGPDK	66 / 6 AA	68
Phosphosite 14:	RIPK2	O43353	Y240	TNPLQIMYSVSQGHR	57 / 7 AA	61
Phosphosite 15:	CYTL1	Q9NRR1	T101	DKARKLYTIMNSFCR	83 / 6 AA	16
Phosphosite 16:	SUV420H2	Q86Y97	S161	RAGENDFSIMYSTRK	66 / 6 AA	52
Phosphosite 17:	CANX	P27824	Y185	QFHDKTPYTIMFGPD	80 / 5 AA	68
Phosphosite 18:	CSMD2	Q7Z408	Y2555	TVGTKAMYSCSEGYH	66 / 6 AA	380
Phosphosite 19:	CSMD2	Q7Z408	S2556	VGTKAMYSCSEGYHL	66 / 6 AA	380
Phosphosite 20:	mGluR5	P41594	S102	IRDSCWHSAVALEQS	100 / 4 AA	132