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:	Y511
P-Site Sequence:	DVCEAMEYLESKQFL
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	Y511	DVCEAMEYLESKQFL	100 / 9 AA	76
Phosphosite 1:	CTK	P42679	Y342	HVAEGMEYLESKKLV	88 / 9 AA	56
Phosphosite 2:	CSK	P41240	Y304	DVCEAMEYLEGNNFV	77 / 9 AA	51
Phosphosite 3:	TNK2	Q07912	Y242	QVAEGMGYLESKRFI	77 / 9 AA	115
Phosphosite 4:	ABL2	P42684	Y399	QISSAMEYLEKKNFI	87 / 8 AA	128
Phosphosite 5:	Abl	P00519	Y353	QISSAMEYLEKKNFI	87 / 8 AA	123
Phosphosite 6:	TXK	P42681	Y380	DICEGMEYLERNGYI	66 / 9 AA	61
Phosphosite 7:	TEC	P42680	Y479	DVCEGMEYLERNSFI	66 / 9 AA	74
Phosphosite 8:	PTPRR	Q15256	Y370	REKVAMEYLQSASRI	85 / 7 AA	74
Phosphosite 9:	FGFR4	P22455	Y602	QVARGMQYLESRKCI	62 / 8 AA	88
Phosphosite 10:	FGFR1	P11362	Y613	QVARGMEYLASKKCI	75 / 8 AA	92
Phosphosite 11:	Leucine-rich repeat and death domain-containing protein LOC401387	A4D1F6	Y46	LINEASDYLEGKSSN	66 / 9 AA	98
Phosphosite 12:	GVIN1	Q7Z2Y8	Y2059	RANDPVNYLESKKDD	55 / 9 AA	279
Phosphosite 13:	PTPRK	Q15262	Y1435	CYDVALEYLESS___	85 / 7 AA	162
Phosphosite 14:	FRK	P42685	Y344	QVASGMAYLESRNYI	62 / 8 AA	58
Phosphosite 15:	JAK3	P52333	Y939	QICKGMEYLGSRRCV	62 / 8 AA	125
Phosphosite 16:	Mad4	Q14582	Y15	ILLEAAEYLERRDRE	66 / 9 AA	24
Phosphosite 17:	JAK2	O60674	Y966	QICKGMEYLGTKRYI	62 / 8 AA	131
Phosphosite 18:	COX19	Q49B96	Y58	CRKESKEYLECRMER	55 / 9 AA	10
Phosphosite 19:	DNAH14	Q0VDD8	Y398	EKNEIKEYFESKLSE	66 / 9 AA	400
Phosphosite 20:	AK5	Q9Y6K8	Y37	KPEDPVEYLESCLQK	62 / 8 AA	63