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:	S87
P-Site Sequence:	PRRGEESSEMEQISI
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	S87	PRRGEESSEMEQISI	100 / 9 AA	76
Phosphosite 1:	Btk	Q06187	S86	IPRRGEESSEMEQIS	100 / 8 AA	76
Phosphosite 2:	SAFB	Q15424	S235	EPVKEESSELEQPFA	87 / 8 AA	103
Phosphosite 3:	SAFB2	Q14151	S234	EPVKEESSELEQPFA	87 / 8 AA	107
Phosphosite 4:	SEC16A	O15027	S1732	QCPGTPSSEMEQLDR	77 / 9 AA	234
Phosphosite 5:	PLEKHA4	Q9H4M7	S518	PVLQGEESSERESLP	87 / 8 AA	85
Phosphosite 6:	PLEKHA4	Q9H4M7	S519	VLQGEESSERESLPE	87 / 8 AA	85
Phosphosite 7:	FBX38	Q6PIJ6	S1155	ETIGEEISEMRQMKK	77 / 9 AA	134
Phosphosite 8:	BRMS1	Q9HCU9	S46	TESEEESSEMDDEDY	75 / 8 AA	28
Phosphosite 9:	BRMS1	Q9HCU9	S45	QTESEEESSEMDDED	85 / 7 AA	28
Phosphosite 10:	USP24	Q9UPU5	S1525	LLDDLTTSEMEQLRI	83 / 6 AA	294
Phosphosite 11:	SAFB	Q15424	S234	SEPVKEESSELEQPF	85 / 7 AA	103
Phosphosite 12:	SAFB2	Q14151	S233	SEPVKEESSELEQPF	85 / 7 AA	107
Phosphosite 13:	GOLGA4	Q13439	S875	QQLEKQNSEMEQKVK	71 / 7 AA	261
Phosphosite 14:	SYNM	O15061	S1025	ELSKDEASEMEKAVE	62 / 8 AA	173
Phosphosite 15:	SLC9A7	Q96T83	S52	GAAAEDSSAMEELAT	55 / 9 AA	80
Phosphosite 16:	UBE3C	Q15386	S585	SIGVTTSSEMQQCIQ	83 / 6 AA	124
Phosphosite 17:	SLC9A7	Q96T83	S51	SGAAAEDSSAMEELA	62 / 8 AA	80
Phosphosite 18:	PAX7	P23759	S514	QMEKLKSSQMEQFT_	83 / 6 AA	57
Phosphosite 19:	LAMC3	Q9Y6N6	S1477	ERVGAGLSEMEQQIR	66 / 9 AA	172
Phosphosite 20:	HIRIP3	Q9BW71	S160	AQRGEESSEEEEKGY	77 / 9 AA	62