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:	Y279
P-Site Sequence:	AEDSIEMYEWYSKHM
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	Y279	AEDSIEMYEWYSKHM	100 / 9 AA	76
Phosphosite 1:	VPS13D	Q5THJ4	Y814	HLMSTKMYERYSLSF	66 / 9 AA	492
Phosphosite 2:	ITK	Q08881	Y237	SPNNLETYEWYNKSI	55 / 9 AA	72
Phosphosite 3:	TXK	P42681	Y148	KITNLEIYEWYHRNI	62 / 8 AA	61
Phosphosite 4:	ITK	Q08881	T236	KSPNNLETYEWYNKS	62 / 8 AA	72
Phosphosite 5:	TEC	P42680	Y245	KSNNLDQYEWYCRNM	44 / 9 AA	74
Phosphosite 6:	LANCL1	O43813	Y207	TAKSPLMYEWYQEYY	100 / 5 AA	45
Phosphosite 7:	FHAD1	B1AJZ9	Y1328	SKVSIEMYQSQVAKL	71 / 7 AA	162
Phosphosite 8:	LANCL1	O43813	Y210	SPLMYEWYQEYYVGA	100 / 5 AA	45
Phosphosite 9:	PIBF1	Q8WXW3	Y403	RNASREMYERENRNL	71 / 7 AA	90
Phosphosite 10:	GRIK4	Q16099	Y571	LVARLTPYEWYSPHP	100 / 5 AA	107
Phosphosite 11:	DYRK3	O43781	Y296	ELLSIDLYELIKKNK	57 / 7 AA	66
Phosphosite 12:	NARG1L	Q6N069	Y216	SLEHIEMYEKQICDK	100 / 5 AA	101
Phosphosite 13:	FHAD1	B1AJZ9	S1324	QLRRSKVSIEMYQSQ	100 / 5 AA	162
Phosphosite 14:	RUFY2	Q8WXA3	Y414	KAINIEMYQKLQGSE	66 / 6 AA	75
Phosphosite 15:	PLCB4	Q15147	Y275	AMQIIEMYEPDEDLK	100 / 5 AA	134
Phosphosite 16:	TXK	P42681	Y151	NLEIYEWYHRNITRN	80 / 5 AA	61
Phosphosite 17:	ARHGEF18	Q6ZSZ5	Y576	SLQGPEMYEIYTSSK	71 / 7 AA	131
Phosphosite 18:	SURF5	Q15528	Y128	DEISIDLYELEEEYY	57 / 7 AA	22
Phosphosite 19:	smMLCK	Q15746	Y464	QEGSIEVYEDAGSHY	83 / 6 AA	211
Phosphosite 20:	GRIK5	Q16478	Y570	LAARLSPYEWYNPHP	80 / 5 AA	109