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:	SAMHD1
Human P-Site:	T21
P-Site Sequence:	RCDDSPRTPSNTPSA
UniProt:	Q9Y3Z3
Intern. Prot. ID:	IPI00294739

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	SAMHD1	Q9Y3Z3	T21	RCDDSPRTPSNTPSA	100 / 9 AA	72
Phosphosite 1:	WDR22	Q96JK2	T740	FKEETPRTPSNGPGH	75 / 8 AA	104
Phosphosite 2:	SAMHD1	Q9Y3Z3	S23	DDSPRTPSNTPSAEA	100 / 7 AA	72
Phosphosite 3:	FNDC1	Q4ZHG4	S555	SREDSPMSPSDTQDQ	66 / 9 AA	199
Phosphosite 4:	OTOG	Q6ZRI0	T1504	LSQESPRTPTHRPAL	62 / 8 AA	315
Phosphosite 5:	GPR119	Q8TDV5	T217	GGYRSPRTPSDFKAL	85 / 7 AA	37
Phosphosite 6:	SAMHD1	Q9Y3Z3	S18	KRPRCDDSPRTPSNT	100 / 6 AA	72
Phosphosite 7:	STOX1	Q6ZVD7	T942	SGIDSPRTQSLGSNN	85 / 7 AA	111
Phosphosite 8:	WDR22	Q96JK2	S742	EETPRTPSNGPGHEH	100 / 6 AA	104
Phosphosite 9:	PDE4DIP	Q5VU43	S1606	ALSDSHRSPSSTSFL	66 / 9 AA	130
Phosphosite 10:	Proline-rich protein 35	P0CG20	S292	KAPVSPRSPSGTPAP	75 / 8 AA
Phosphosite 11:	OR10G3	Q8NGC4	T309	RMLRSPRTPSEV___	75 / 8 AA	35
Phosphosite 12:	CHAF1A	Q13111	S775	NHTGSPRSPSTTYLH	66 / 9 AA	107
Phosphosite 13:	OTOG	Q6ZRI0	S1501	EPQLSQESPRTPTHR	83 / 6 AA	315
Phosphosite 14:	STARD9	Q9P2P6	T3860	DPVDAPRTPMDNYSQ	62 / 8 AA	507
Phosphosite 15:	SRRM2	Q9UQ35	T1472	GMKDIPRTPSRGRSE	85 / 7 AA	300
Phosphosite 16:	DKFZP434B061	Q9UF83	T82	PPRASPRTPSRASPT	85 / 7 AA	59
Phosphosite 17:	SETD5	Q9C0A6	T1249	LQCDSPRTESQSLLQ	66 / 9 AA	158
Phosphosite 18:	C4BPA	P04003	T419	DGTWSPRTPSCGDIC	100 / 6 AA	67
Phosphosite 19:	PKD1L1	Q8TDX9	T257	LPPGIPRTPSFTASQ	85 / 7 AA	315
Phosphosite 20:	Putative uncharacterized protein MGC39545	Q8IYB0	T23	AGCDTSSTPSNTAPR	66 / 9 AA	21