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:	S645
P-Site Sequence:	AGRGSISSGLEFVSH
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	S645	AGRGSISSGLEFVSH	100 / 9 AA	140
Phosphosite 1:	TRIM28	Q13263	S601	SPSGSTSSGLEVVAP	87 / 8 AA	89
Phosphosite 2:	PROM1	O43490	S595	NEHTGSISSELESLK	87 / 8 AA	97
Phosphosite 3:	TRIM28	Q13263	S600	ASPSGSTSSGLEVVA	87 / 8 AA	89
Phosphosite 4:	ECM1	Q16610	S293	SHQPDISSGLELPFP	85 / 7 AA	61
Phosphosite 5:	GBF1	Q92538	S292	VVSPSTDSGLEFSSQ	75 / 8 AA	206
Phosphosite 6:	SPEG	Q15772	S1623	RRIVERSSGLEFAAK	100 / 6 AA	354
Phosphosite 7:	Polycystin 2	Q13563	S832	RRRGSISSGVSYEEF	66 / 9 AA	110
Phosphosite 8:	TBXAS1	P24557	S113	NFTNRMASGLEFKSV	62 / 8 AA	61
Phosphosite 9:	piccolo	Q9Y6V0	S2426	PKPSSIPSGLVFTHR	75 / 8 AA	567
Phosphosite 10:	TNKS1BP1	Q9C0C2	S1385	LRHNGSLSPGLEARD	75 / 8 AA	182
Phosphosite 11:	ECM1	Q16610	S292	PSHQPDISSGLELPF	100 / 6 AA	61
Phosphosite 12:	RASAL2	Q9UJF2	S643	PNVSGSLSSGLQKIF	75 / 8 AA	129
Phosphosite 13:	PITPNM3	Q9BZ71	S326	SKSNIDISSGLEDEE	100 / 6 AA	107
Phosphosite 14:	SP140	Q13342	S415	LARRGSVSSELENHP	75 / 8 AA	100
Phosphosite 15:	PITPNM3	Q9BZ71	S327	KSNIDISSGLEDEEP	100 / 6 AA	107
Phosphosite 16:	SP140	Q13342	S416	ARRGSVSSELENHPM	75 / 8 AA	100
Phosphosite 17:	REL	Q04864	S396	PSPGPISSGLSHHAS	85 / 7 AA	69
Phosphosite 18:	REL	Q04864	S395	YPSPGPISSGLSHHA	85 / 7 AA	69
Phosphosite 19:	KIDINS220	Q9ULH0	S1429	SSGGSIHSNLEQEKG	75 / 8 AA	197
Phosphosite 20:	TUBGCP5	Q96RT8	T909	MTRILHSTGLEFQHQ	83 / 6 AA	118