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:	S397
P-Site Sequence:	LTRGDSTSSTRSTGK
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	S397	LTRGDSTSSTRSTGK	100 / 9 AA	89
Phosphosite 1:	ARPP-21	Q9UBL0	S398	TRGDSTSSTRSTGKL	100 / 8 AA	89
Phosphosite 2:	ARPP-21	Q9UBL0	S395	TVLTRGDSTSSTRST	100 / 7 AA	89
Phosphosite 3:	SYT16	Q17RD7	S497	SHSDSTSSTQSLSHG	87 / 8 AA	72
Phosphosite 4:	SYT16	Q17RD7	S496	VSHSDSTSSTQSLSH	87 / 8 AA	72
Phosphosite 5:	PTCH1	Q13635	T705	SCQSPESTSSTRDLL	85 / 7 AA	161
Phosphosite 6:	PTCH1	Q13635	S707	QSPESTSSTRDLLSQ	85 / 7 AA	161
Phosphosite 7:	MEKK4	Q9Y6R4	S1267	AYPRGDSSGSTRRSW	75 / 8 AA	182
Phosphosite 8:	PTCH1	Q13635	S706	CQSPESTSSTRDLLS	85 / 7 AA	161
Phosphosite 9:	ARPP-21	Q9UBL0	T399	RGDSTSSTRSTGKLS	100 / 7 AA	89
Phosphosite 10:	MEIS1	O00470	S222	RDHDDTASTRSGGTP	75 / 8 AA	43
Phosphosite 11:	ZC3H11A	O75152	S393	SKTDDSTSGARSSST	75 / 8 AA	89
Phosphosite 12:	TNRC6C	Q9HCJ0	S540	GPGVWGDSISSTAVS	85 / 7 AA	176
Phosphosite 13:	TOPBP1	Q92547	S1111	STPDSTRSARSGRSR	75 / 8 AA	171
Phosphosite 14:	CUL7	Q14999	S914	VCGGDSTSSLHTELN	66 / 9 AA	191
Phosphosite 15:	MMRN1	Q13201	S191	LSRGDSSSSQRTDYQ	75 / 8 AA	138
Phosphosite 16:	GCLM	P48507	S105	VESNSSSSTRSAVDM	75 / 8 AA	31
Phosphosite 17:	ZNF275	Q9NSD4	S77	AKYSESTSATRHQMK	71 / 7 AA	52
Phosphosite 18:	FIGN	Q5HY92	S30	EQHFDITSTTRSPAH	75 / 8 AA	82
Phosphosite 19:	KIAA1853	A7MD48	S608	SSADSYSSTRR____	85 / 7 AA	69
Phosphosite 20:	FIGN	Q5HY92	T31	QHFDITSTTRSPAHK	75 / 8 AA	82