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:	Ataxin-3
Human P-Site:	S335
P-Site Sequence:	CERPATSSGALGSDL
UniProt:	P54252
Intern. Prot. ID:	IPI00005495

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	Ataxin-3	P54252	S335	CERPATSSGALGSDL	100 / 9 AA	42
Phosphosite 1:	KIAA1881	Q96Q06	S1049	LPSTPATSWGGLTSS	75 / 8 AA	134
Phosphosite 2:	IGSF21	Q96ID5	S203	SEPPAASSGPLQDSR	75 / 8 AA	52
Phosphosite 3:	MDS1	Q13465	S52	EPCSPATSSEAFTPK	75 / 8 AA	19
Phosphosite 4:	IGSF21	Q96ID5	S202	LSEPPAASSGPLQDS	75 / 8 AA	52
Phosphosite 5:	MDS1	Q13465	S53	PCSPATSSEAFTPKE	75 / 8 AA	19
Phosphosite 6:	UBN1	Q9NPG3	S880	HKTPASSSSALSHPA	66 / 9 AA	122
Phosphosite 7:	NR0B1	P51843	S240	APWWDTSSGALRPVA	100 / 6 AA	52
Phosphosite 8:	MUC5B	Q9HC84	S4177	CPSTPATSSTAMPSS	75 / 8 AA	590
Phosphosite 9:	NR0B1	P51843	S239	RAPWWDTSSGALRPV	100 / 6 AA	52
Phosphosite 10:	CASZ1	Q86V15	S700	ERRHIRSSGALGLPP	100 / 6 AA	190
Phosphosite 11:	UBN1	Q9NPG3	S879	SHKTPASSSSALSHP	75 / 8 AA	122
Phosphosite 12:	ZMYM3	Q14202	S54	PPGPSPSSGALDLLD	66 / 9 AA	152
Phosphosite 13:	MUC5B	Q9HC84	S4178	PSTPATSSTAMPSST	75 / 8 AA	590
Phosphosite 14:	HP1BP3	Q5SSJ5	S91	ETPPATSSEAEQPKG	85 / 7 AA	61
Phosphosite 15:	ZMYM3	Q14202	S53	APPGPSPSSGALDLL	75 / 8 AA	152
Phosphosite 16:	PPP1R12C	Q9BZL4	S428	GLLKTGSSGALGPPE	100 / 6 AA	85
Phosphosite 17:	GJD4	Q96KN9	S357	PDPPASSSGAPHLRA	85 / 7 AA	40
Phosphosite 18:	C7orf43	Q8WVR3	S132	HGPGPATSGGATTLP	85 / 7 AA	63
Phosphosite 19:	ITPR3	Q14573	S279	SATSATSSNALWEVE	75 / 8 AA	304
Phosphosite 20:	GJD4	Q96KN9	S355	QPPDPPASSSGAPHL	85 / 7 AA	40