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:	S609
P-Site Sequence:	PTGGFSGSGPPISQQ
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	S609	PTGGFSGSGPPISQQ	100 / 9 AA	89
Phosphosite 1:	ARPP-21	Q9UBL0	S607	QLPTGGFSGSGPPIS	100 / 7 AA	89
Phosphosite 2:	TLL1	O43897	S968	GLGRFCGSGPPEEIY	85 / 7 AA	115
Phosphosite 3:	ATP6V1B2	P21281	S135	LGRVFNGSGKPIDRG	75 / 8 AA	57
Phosphosite 4:	ATP6V1B1	P15313	S129	LGRVFNGSGKPIDKG	75 / 8 AA	57
Phosphosite 5:	LMLN	Q96KR4	S22	GGVGYSGSGPGRSRW	85 / 7 AA	74
Phosphosite 6:	LMLN	Q96KR4	S20	WGGGVGYSGSGPGRS	85 / 7 AA	74
Phosphosite 7:	BMP1	P13497	S941	RLGRYCGSGPPEEVY	71 / 7 AA	111
Phosphosite 8:	DNMT1	P26358	S438	IELFFSGSAKPIYDD	75 / 8 AA	183
Phosphosite 9:	RBM21	Q9H6E5	S425	QGRGLSGSGPLLSNY	66 / 9 AA	94
Phosphosite 10:	SNX26	O14559	S949	EPLGTSGSGPPPNSL	87 / 8 AA	137
Phosphosite 11:	HECTD1	Q9ULT8	S2401	VLKNPSGSGPPLSIE	85 / 7 AA	290
Phosphosite 12:	HSPA1A	P08107	S633	GPKGGSGSGPTIEEV	77 / 9 AA	70
Phosphosite 13:	FOXN1	O15353	S407	PPPGLSGSGPIRPLA	85 / 7 AA	69
Phosphosite 14:	FOXN3	O00409	S229	PQAYQSTSGPPIWPG	85 / 7 AA	54
Phosphosite 15:	ABCB9	Q9NP78	S161	EAEGFPGSGRPPPEQ	75 / 8 AA	84
Phosphosite 16:	PUM2	Q8TB72	S618	NSLGFSSSPSPIGMP	66 / 9 AA	114
Phosphosite 17:	RBM21	Q9H6E5	S423	WAQGRGLSGSGPLLS	85 / 7 AA	94
Phosphosite 18:	FOXN1	O15353	S405	GCPPPGLSGSGPIRP	85 / 7 AA	69
Phosphosite 19:	HOXD1	Q9GZZ0	S111	ADYGFLGSGPAYDFP	75 / 8 AA	34
Phosphosite 20:	TBX4	P57082	S395	PREACMYSGSGPEIA	83 / 6 AA	60