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:	ATXN2
Human P-Site:	S523
P-Site Sequence:	MGQPGSGSMPSRSTS
UniProt:	Q99700
Intern. Prot. ID:	IPI00783008

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	ATXN2	Q99700	S523	MGQPGSGSMPSRSTS	100 / 9 AA	140
Phosphosite 1:	ATXN2	Q99700	S521	PRMGQPGSGSMPSRS	100 / 7 AA	140
Phosphosite 2:	SAMD4	Q9UPU9	S651	ANPGGSNSMPSRTHS	87 / 8 AA	59
Phosphosite 3:	C1orf172	Q8NAX2	S233	LPEMGSGSMSSREID	87 / 8 AA	44
Phosphosite 4:	EPHA6	Q9UF33	S735	HPVPGGGSLPPRIPA	66 / 9 AA	116
Phosphosite 5:	ATXN2	Q99700	S526	PGSGSMPSRSTSHTS	100 / 6 AA	140
Phosphosite 6:	PALD	Q9ULE6	T26	EGLQGSGTMDSRHSV	66 / 9 AA	97
Phosphosite 7:	C9orf23	Q8N5L8	S144	GAPPGLGSMPSSSCG	87 / 8 AA	18
Phosphosite 8:	TUBGCP5	Q96RT8	S348	SMLPGSGSVPKKSTE	66 / 9 AA	118
Phosphosite 9:	RP1L1	Q8IWN7	S726	LRPPSSGSLPSQDLL	66 / 9 AA	261
Phosphosite 10:	SNCAIP	Q9Y6H5	S766	LESQYPGSGSIPPNQ	85 / 7 AA	100
Phosphosite 11:	CASC3	O15234	S47	AGGGGSGSLPSQRGG	75 / 8 AA	76
Phosphosite 12:	SNCAIP	Q9Y6H5	S768	SQYPGSGSIPPNQPS	85 / 7 AA	100
Phosphosite 13:	WDR81	Q562E7	S278	LVAPGSASGPSRLNS	77 / 9 AA	96
Phosphosite 14:	CORO1B	Q9BR76	S321	EPQRGMGSMPKRGLE	75 / 8 AA	54
Phosphosite 15:	C1orf172	Q8NAX2	S235	EMGSGSMSSREIDVL	85 / 7 AA	44
Phosphosite 16:	SAMD4B	Q5PRF9	S628	ANPGGSNSMPSQSRS	75 / 8 AA	75
Phosphosite 17:	TPRX1	Q8N7U7	S316	GSGPGSGSVPAPIPG	75 / 8 AA	41
Phosphosite 18:	TPRX1	Q8N7U7	S314	GPGSGPGSGSVPAPI	85 / 7 AA	41
Phosphosite 19:	TUBGCP5	Q96RT8	S346	SESMLPGSGSVPKKS	85 / 7 AA	118
Phosphosite 20:	SH3MD4	Q8TEJ3	S558	TMHPGSGSLSSLATA	75 / 8 AA	93