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:	Y344
P-Site Sequence:	CSTPQSQYYLAEKHL
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	Y344	CSTPQSQYYLAEKHL	100 / 9 AA	76
Phosphosite 1:	Btk	Q06187	Y345	STPQSQYYLAEKHLF	100 / 8 AA	76
Phosphosite 2:	Btk	Q06187	S342	VVCSTPQSQYYLAEK	100 / 7 AA	76
Phosphosite 3:	TSSC1	Q53HC9	Y242	DFNPNKQYYLASCGD	75 / 8 AA	44
Phosphosite 4:	Rhodopsin	P08100	Y30	PFEYPQYYLAEPWQF	85 / 7 AA	39
Phosphosite 5:	FEZF1	A0PJY2	T196	PLHPQPKTYLAERNK	66 / 9 AA	52
Phosphosite 6:	Rhodopsin	P08100	Y29	SPFEYPQYYLAEPWQ	85 / 7 AA	39
Phosphosite 7:	POLA	P09884	Y1210	NLTIDTQYYLAQQIH	71 / 7 AA	166
Phosphosite 8:	POLA	P09884	Y1211	LTIDTQYYLAQQIHP	71 / 7 AA	166
Phosphosite 9:	JAK3	P52333	Y506	LVQPQSQYQLSQMTF	66 / 9 AA	125
Phosphosite 10:	NARG1	Q9BXJ9	Y379	TLLWVQYYLAQHYDK	83 / 6 AA	101
Phosphosite 11:	TEC	P42680	Y313	TTSPKKYYLAEKHAF	83 / 6 AA	74
Phosphosite 12:	TEC	P42680	Y312	TTTSPKKYYLAEKHA	83 / 6 AA	74
Phosphosite 13:	NARG1	Q9BXJ9	Y378	TTLLWVQYYLAQHYD	83 / 6 AA	101
Phosphosite 14:	SMARCAD1	Q9H4L7	Y792	PLLHRQYYTAEKLKE	62 / 8 AA	117
Phosphosite 15:	KIAA1671	Q9BY89	Y1344	HVAKCQNYLAESKPS	62 / 8 AA	197
Phosphosite 16:	ZFHX4	Q86UP3	Y824	EAELYQYYLAQNIGL	83 / 6 AA	394
Phosphosite 17:	ZFHX3	Q15911	Y865	EAELYQYYLAQNMNL	83 / 6 AA	404
Phosphosite 18:	SMARCAD1	Q9H4L7	Y791	HPLLHRQYYTAEKLK	62 / 8 AA	117
Phosphosite 19:	TSSC1	Q53HC9	Y243	FNPNKQYYLASCGDD	100 / 5 AA	44
Phosphosite 20:	FAM71E2	Q8N5Q1	Y132	LVSGRQYYLALDAPD	83 / 6 AA	34