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:	S280
P-Site Sequence:	RDDRRSKSIEEREEE
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	S280	RDDRRSKSIEEREEE	100 / 9 AA	89
Phosphosite 1:	R3HDM1	Q15032	S282	KDDRRSKSIEEREEE	100 / 9 AA	121
Phosphosite 2:	ARPP-21	Q9UBL0	S278	PFRDDRRSKSIEERE	100 / 7 AA	89
Phosphosite 3:	R3HDM1	Q15032	S280	RLKDDRRSKSIEERE	100 / 7 AA	121
Phosphosite 4:	SHANK1	Q9Y566	S1287	PRLRHSKSIDEGMFS	75 / 8 AA	225
Phosphosite 5:	TRIM24	O15164	S1042	PRKKRLKSIEERQLL	77 / 9 AA	117
Phosphosite 6:	DSP	P15924	S1127	DEKRRRKSVEDRFDQ	66 / 9 AA	332
Phosphosite 7:	STUB1	Q9UNE7	S149	AKKKRWNSIEERRIH	66 / 9 AA	35
Phosphosite 8:	ACOT12	Q8WYK0	S531	NLGGWSKSIEETAAS	85 / 7 AA	62
Phosphosite 9:	DOCK7	Q96N67	S182	DLKRRSMSIDDTPRG	62 / 8 AA	243
Phosphosite 10:	CLK2	P49760	S142	HSSRRAKSVEDDAEG	62 / 8 AA	60
Phosphosite 11:	PRPF38B	Q5VTL8	S529	HDRRRSQSIEQESQE	75 / 8 AA	64
Phosphosite 12:	C12orf54	Q6X4T0	S24	SKQQRSTSIEETMRP	75 / 8 AA	14
Phosphosite 13:	JRKL	Q9Y4A0	S204	CTVPGHKSIEERVTI	100 / 6 AA	51
Phosphosite 14:	C12orf54	Q6X4T0	T23	TSKQQRSTSIEETMR	75 / 8 AA	14
Phosphosite 15:	CWF19L2	Q2TBE0	S13	GRFESAKSIEERKEQ	85 / 7 AA	103
Phosphosite 16:	ZBED5	Q49AG3	S300	VRYRFNKSIEEDLLL	75 / 8 AA	79
Phosphosite 17:	CARD6	Q9BX69	S278	LEEEQEKSIEERKKV	100 / 6 AA	116
Phosphosite 18:	SHANK2	Q9UPX8	S470	GTMRRQKSIDSRIFL	66 / 9 AA	159
Phosphosite 19:	MXRA5	Q9NR99	S291	LRQNRSRSIEEEQEQ	85 / 7 AA	312
Phosphosite 20:	PDGFA	P04085	S87	LPIRRKRSIEEAVPA	75 / 8 AA	24