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:	C4orf21
Human P-Site:	Y242
P-Site Sequence:	RDSLASHYSGVSQNI
UniProt:	Q86YA3
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C4orf21	Q86YA3	Y242	RDSLASHYSGVSQNI	100 / 9 AA	119
Phosphosite 1:	C4orf21	Q86YA3	S243	DSLASHYSGVSQNIR	100 / 8 AA	119
Phosphosite 2:	C4orf21	Q86YA3	S240	VKRDSLASHYSGVSQ	100 / 7 AA	119
Phosphosite 3:	DPP9	Q86TI2	Y563	FDMFVSHYSSVSTPP	66 / 9 AA	98
Phosphosite 4:	R3HDM2	Q9Y2K5	Y695	PPQMPQQYSGVSPSG	55 / 9 AA	107
Phosphosite 5:	AGXT2L2	Q8IUZ5	Y127	ALRLARHYTGHQDVV	71 / 7 AA	50
Phosphosite 6:	RIG	Q13278	S14	CLCPSHYSGPSLPSS	75 / 8 AA	12
Phosphosite 7:	HBQ1	P09105	Y114	LVTLARHYPGDFSPA	71 / 7 AA	16
Phosphosite 8:	FAM59A	Q9H706	Y630	RLSWPNHYSGASESQ	55 / 9 AA	97
Phosphosite 9:	RIG	Q13278	Y13	SCLCPSHYSGPSLPS	75 / 8 AA	12
Phosphosite 10:	DPP9	Q86TI2	S564	DMFVSHYSSVSTPPC	85 / 7 AA	98
Phosphosite 11:	ACC2	O00763	Y1988	GGVQIMHYNGVSHIT	83 / 6 AA	277
Phosphosite 12:	POLR2A	P24928	Y1109	MTLNTFHYAGVSAKN	83 / 6 AA	217
Phosphosite 13:	R3HDM2	Q9Y2K5	S696	PQMPQQYSGVSPSGP	83 / 6 AA	107
Phosphosite 14:	HAND2	P61296	Y80	AGLDHSHYGGVPPGA	71 / 7 AA	24
Phosphosite 15:	FAM59A	Q9H706	S631	LSWPNHYSGASESQT	62 / 8 AA	97
Phosphosite 16:	ATAD2	Q6PL18	Y164	SCRIRSRYSGVNQSM	55 / 9 AA	159
Phosphosite 17:	RAX2	Q96IS3	Y51	RAFEASHYPDVYSRE	71 / 7 AA	20
Phosphosite 18:	ATAD2	Q6PL18	S165	CRIRSRYSGVNQSML	71 / 7 AA	159
Phosphosite 19:	GTF3A	Q92664	S323	REKRSLASHLSGYIP	85 / 7 AA	42
Phosphosite 20:	PHYHD1	Q5SRE7	S196	FIPGSHTSGVSRRMV	75 / 8 AA	33