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:	S310
P-Site Sequence:	GFIVRDSSKAGKYTV
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	S310	GFIVRDSSKAGKYTV	100 / 9 AA	76
Phosphosite 1:	Btk	Q06187	S309	GGFIVRDSSKAGKYT	100 / 8 AA	76
Phosphosite 2:	ZNF416	Q9BWM5	S581	VERPRDSSKCGKPYS	87 / 8 AA	67
Phosphosite 3:	TEP1	Q99973	S484	LPGPWDSSRAGKRMK	75 / 8 AA	290
Phosphosite 4:	PIK3R1	P27986	S651	GTFLVRESSKQGCYA	75 / 8 AA	84
Phosphosite 5:	TEC	P42680	S276	GFMVRDSSQPGLYTV	75 / 8 AA	74
Phosphosite 6:	TEC	P42680	S275	GGFMVRDSSQPGLYT	75 / 8 AA	74
Phosphosite 7:	PIK3R1	P27986	S652	TFLVRESSKQGCYAC	75 / 8 AA	84
Phosphosite 8:	MDM1	Q8TC05	S492	KLDVREKSKADKMKE	66 / 9 AA	81
Phosphosite 9:	RNF112	Q9ULX5	S321	DLLVRDSSHPNKAGQ	66 / 9 AA	68
Phosphosite 10:	LCP2	Q13094	S451	TFLVRDSSKKTTTNP	100 / 6 AA	60
Phosphosite 11:	LCP2	Q13094	S450	GTFLVRDSSKKTTTN	100 / 6 AA	60
Phosphosite 12:	PSMB1	P20618	S162	VGSYQRDSFKAGGSA	85 / 7 AA	26
Phosphosite 13:	ITK	Q08881	S267	GAFMVRDSRTAGTYT	75 / 8 AA	72
Phosphosite 14:	RBM7	Q9Y580	S256	YDNRRDSSRDGKWRS	75 / 8 AA	31
Phosphosite 15:	ZNF750	Q32MQ0	S387	PIPEAKDSSKAGQRD	75 / 8 AA	77
Phosphosite 16:	ZNF416	Q9BWM5	S580	TVERPRDSSKCGKPY	85 / 7 AA	67
Phosphosite 17:	C3orf19	Q6PII3	S134	ASGAHRDSQKAGERD	85 / 7 AA	54
Phosphosite 18:	HNRNPC	P07910	S183	KSGQRGSSKSGKLKG	75 / 8 AA	34
Phosphosite 19:	HNRNPCL1	O60812	S170	KSGKRGSSKSGKLKG	75 / 8 AA	32
Phosphosite 20:	FLNB	O75369	S1448	QSFTVDSSKAGLAPL	100 / 6 AA	278