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:	S212
P-Site Sequence:	EPAAAPVSTSELKKV
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	S212	EPAAAPVSTSELKKV	100 / 9 AA	76
Phosphosite 1:	LARP2	Q659C4	S890	PNAAKPTSTSELQVP	77 / 9 AA	105
Phosphosite 2:	FAM160A1	Q05DH4	S724	EPEAAPESNSELASP	77 / 9 AA	117
Phosphosite 3:	DDAH1	O94760	S263	MLIPVSMSELEKVDG	85 / 7 AA	31
Phosphosite 4:	IRF-2	P14316	S215	ESDEQPVSMSELYPL	85 / 7 AA	39
Phosphosite 5:	C10orf18	Q5VWN6	S1097	ASLRHPVSTSENART	100 / 6 AA	269
Phosphosite 6:	C10orf18	Q5VWN6	T1098	SLRHPVSTSENARTQ	100 / 6 AA	269
Phosphosite 7:	VPS13A	Q96RL7	S1025	EEKSAPVSTTETEDK	85 / 7 AA	360
Phosphosite 8:	C10orf18	Q5VWN6	S1099	LRHPVSTSENARTQG	100 / 6 AA	269
Phosphosite 9:	DACT2	Q5SW24	S218	TFWPRPVSTGDLDRA	71 / 7 AA	83
Phosphosite 10:	CCDC68	Q9H2F9	S315	TKVSKAVSTSELKTE	85 / 7 AA	39
Phosphosite 11:	SON	P18583	T509	ELTEQPVTTTELEQP	71 / 7 AA	264
Phosphosite 12:	DYM	Q7RTS9	S47	SFPAPTSSSELKLLE	75 / 8 AA	76
Phosphosite 13:	MNK2	Q9HBH9	S243	NGDCSPISTPELLTP	62 / 8 AA	52
Phosphosite 14:	MNK2	Q9HBH9	T244	GDCSPISTPELLTPC	62 / 8 AA	52
Phosphosite 15:	UBR4	Q5T4S7	S3122	DEEPVATSQLLKPHT	71 / 7 AA	574
Phosphosite 16:	EPN2	O95208	S374	GGPAAPASTSDPWPS	75 / 8 AA	68
Phosphosite 17:	KIAA2018	Q68DE3	S410	SLPSSSVSTSDLKNI	55 / 9 AA	241
Phosphosite 18:	SALL2	Q9Y467	S222	QTVGAPASPSELPGT	66 / 9 AA	105
Phosphosite 19:	ACF	Q9NQ94	S556	PNATAPVSAAQLKQA	62 / 8 AA	65
Phosphosite 20:	KIAA2018	Q68DE3	S412	PSSSVSTSDLKNINS	71 / 7 AA	241