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:	ARPP-21
Human P-Site:	S401
P-Site Sequence:	DSTSSTRSTGKLSKA
UniProt:	Q9UBL0
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	ARPP-21	Q9UBL0	S401	DSTSSTRSTGKLSKA	100 / 9 AA	89
Phosphosite 1:	ARPP-21	Q9UBL0	T402	STSSTRSTGKLSKAG	100 / 8 AA	89
Phosphosite 2:	NR2C1	P13056	S232	TDSESTRSTGLLDSG	87 / 8 AA	67
Phosphosite 3:	NR2C1	P13056	T233	DSESTRSTGLLDSGM	87 / 8 AA	67
Phosphosite 4:	RGS8	P57771	T98	EFKKTRSTAKLVSKA	85 / 7 AA	21
Phosphosite 5:	CSK	P41240	T345	EASSTQDTGKLPVKW	75 / 8 AA	51
Phosphosite 6:	EPS15L1	Q9UBC2	T325	ALADTRQTGKLSKDQ	85 / 7 AA	94
Phosphosite 7:	RGS8	P57771	S97	EEFKKTRSTAKLVSK	85 / 7 AA	21
Phosphosite 8:	GNAS	P84996	S23	FRSSTRHSGKLEPME	75 / 8 AA	68
Phosphosite 9:	ANGPTL5	Q86XS5	S93	SIVSYTRSTKKLLRN	77 / 9 AA	44
Phosphosite 10:	ZMAT3	Q9HA38	T28	MSVATRSTGTLQLPP	75 / 8 AA	32
Phosphosite 11:	ARPP-21	Q9UBL0	T399	RGDSTSSTRSTGKLS	100 / 7 AA	89
Phosphosite 12:	SUPT3H	O75486	S101	ATSSSGRSTGKSISF	87 / 8 AA	36
Phosphosite 13:	RUSC1	Q9BVN2	S575	KPGSSTRSLGTLYSQ	77 / 9 AA	96
Phosphosite 14:	APOB	P04114	S3529	NSKSTRSSVKLQGTS	75 / 8 AA	516
Phosphosite 15:	DAB2IP	Q5VWQ8	T246	DVLYARTTGKLKTDN	71 / 7 AA	132
Phosphosite 16:	CDY1	Q9Y6F8	T304	IVLSTRSTEKNALNT	85 / 7 AA	60
Phosphosite 17:	CDY2A	Q9Y6F7	T305	IVLSTRSTEKNALNT	85 / 7 AA	61
Phosphosite 18:	USP21	Q9UK80	S446	RCRQKTRSTKKLTVQ	85 / 7 AA	63
Phosphosite 19:	PAK4	O96013	S342	VCIATVRSSGKLVAV	55 / 9 AA	64
Phosphosite 20:	RGS12	O14924	S905	FSWSRTRSTGRSQKK	75 / 8 AA	156