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:	Y223
P-Site Sequence:	LKKVVALYDYMPMNA
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	Y223	LKKVVALYDYMPMNA	100 / 9 AA	76
Phosphosite 1:	Btk	Q06187	Y225	KVVALYDYMPMNAND	100 / 7 AA	76
Phosphosite 2:	BLK	P51451	Y67	KHFVVALYDYTAMND	77 / 9 AA	58
Phosphosite 3:	RRP12	Q5JTH9	Y375	AQIITALYDYVPSEN	66 / 9 AA	144
Phosphosite 4:	Hck	P08631	Y87	DIIVVALYDYEAIHH	100 / 7 AA	60
Phosphosite 5:	TXK	P42681	Y91	KIQVKALYDFLPREP	66 / 9 AA	61
Phosphosite 6:	ITK	Q08881	Y180	ETVVIALYDYQTNDP	75 / 8 AA	72
Phosphosite 7:	ADAM18	Q9Y3Q7	Y197	IIVEKALYDYMGSEM	100 / 6 AA	83
Phosphosite 8:	ARID5B	Q14865	Y329	QAFLVALYKYMKERK	75 / 8 AA	132
Phosphosite 9:	RIMBP2	O15034	Y961	TRRMVALYDYDPRES	77 / 9 AA	116
Phosphosite 10:	ABI2	Q9NYB9	Y460	LEKVVAIYDYTKDKE	85 / 7 AA	56
Phosphosite 11:	Abi-1	Q8IZP0	Y455	IEKVVAIYDYTKDKD	85 / 7 AA	55
Phosphosite 12:	SPTAN1	Q13813	Y976	KELVLALYDYQEKSP	75 / 8 AA	285
Phosphosite 13:	ULK1	O75385	Y79	HENIVALYDFQEMAN	62 / 8 AA	113
Phosphosite 14:	PLCG2	P16885	Y778	QRTVKALYDYKAKRS	66 / 9 AA	148
Phosphosite 15:	PLEC1	Q15149	Y396	ITYVSSLYDAMPRVP	66 / 9 AA	532
Phosphosite 16:	Src	P12931	Y93	VTTFVALYDYESRTE	100 / 6 AA	60
Phosphosite 17:	YES1	P07947	Y100	VTIFVALYDYEARTT	100 / 6 AA	61
Phosphosite 18:	Fyn	P06241	Y91	VTLFVALYDYEARTE	100 / 6 AA	61
Phosphosite 19:	RHPN2	Q8IUC4	Y386	EKCLSQLYDHMPEGL	83 / 6 AA	77
Phosphosite 20:	Putative rhophilin-2-like protein	A8MT19	Y301	EKCLSQLYDHMPEGL	83 / 6 AA	66