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:	S289
P-Site Sequence:	YSKHMTRSQAEQLLK
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	S289	YSKHMTRSQAEQLLK	100 / 9 AA	76
Phosphosite 1:	Btk	Q06187	T287	EWYSKHMTRSQAEQL	100 / 7 AA	76
Phosphosite 2:	TEC	P42680	S255	YCRNMNRSKAEQLLR	66 / 9 AA	74
Phosphosite 3:	RPAP1	Q9BWH6	S401	ELFHLTRSQVSQQRA	66 / 9 AA	153
Phosphosite 4:	SHIP	Q92835	S13	NHGNITRSKAEELLS	55 / 9 AA	133
Phosphosite 5:	BMX	P51813	S304	FAGNISRSQSEQLLR	55 / 9 AA	78
Phosphosite 6:	PTPN13	Q12923	S1010	PSHQMSRSDAESLAG	62 / 8 AA	277
Phosphosite 7:	CKAP2	Q8WWK9	S145	QSQHMTLSQAFHLKN	85 / 7 AA	77
Phosphosite 8:	CKAP2	Q8WWK9	T143	DPQSQHMTLSQAFHL	85 / 7 AA	77
Phosphosite 9:	Myomesin 2	P54296	S120	EDVHLARSQARDKLD	71 / 7 AA	165
Phosphosite 10:	CEP250	Q9BV73	S820	LELDTERSQAEQERD	100 / 6 AA	281
Phosphosite 11:	PAGE5	Q96GU1	S28	MSEHVTRSQSSERGN	55 / 9 AA	14
Phosphosite 12:	RAG1	P15918	S752	VFHSITRSHAENLER	71 / 7 AA	119
Phosphosite 13:	MED24	O75448	S213	LSNPQLRSQAEQCGT	100 / 6 AA	110
Phosphosite 14:	PAGE5	Q96GU1	T26	RDMSEHVTRSQSSER	71 / 7 AA	14
Phosphosite 15:	CYP27C1	Q4G0S4	S38	KRIYLLRSQAEDGET	55 / 9 AA	43
Phosphosite 16:	FBXO6	Q9NRD1	T262	IVVSPKMTRNQASSE	83 / 6 AA	34
Phosphosite 17:	MYOCD	Q8IZQ8	S734	VKQQMTRSQQMDELL	83 / 6 AA	102
Phosphosite 18:	MLK3	Q16584	S433	RAAREQRSQAEQLRR	100 / 6 AA	93
Phosphosite 19:	DACH2	Q96NX9	T169	ARRKRQMTRKQAVNS	71 / 7 AA	65
Phosphosite 20:	FAM23A	Q5W0B7	T205	SQPSGAMTRSQESVF	100 / 5 AA	40