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:	T874
P-Site Sequence:	EVRKPFITVVSPKSP
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	T874	EVRKPFITVVSPKSP	100 / 9 AA	119
Phosphosite 1:	NEK4	P51957	T293	SQSKPFATVVSGEAE	87 / 8 AA	95
Phosphosite 2:	C20orf12	Q9NVP4	T298	SDHKPLLTAISPGRG	55 / 9 AA	63
Phosphosite 3:	EVI2B	P34910	T361	QSDKPTMTIVSPLPN	66 / 9 AA	49
Phosphosite 4:	DLGAP4	Q9Y2H0	S575	TTSKPFISVTVQSST	83 / 6 AA	108
Phosphosite 5:	C4orf21	Q86YA3	S877	KPFITVVSPKSPHLH	100 / 6 AA	119
Phosphosite 6:	CEACAM5	P06731	T328	EPPKPFITSNNSNPV	100 / 5 AA	77
Phosphosite 7:	HECTD2	Q5U5R9	S64	STFSSFISAVSPKKE	62 / 8 AA	88
Phosphosite 8:	PRPSAP1	Q14558	T242	AKEKPPITVVGDVGG	75 / 8 AA	39
Phosphosite 9:	PRPSAP2	O60256	T255	PKEKPPITVVGDVGG	75 / 8 AA	41
Phosphosite 10:	DTNA	Q9Y4J8	T363	SSGSPFITRSSPPKD	75 / 8 AA	84
Phosphosite 11:	C2orf56	Q7L592	S430	RQSKPFASVVAGFSE	62 / 8 AA	49
Phosphosite 12:	PSG5	Q15238	T152	KLPKPYITIKNSKPR	66 / 6 AA	38
Phosphosite 13:	C16orf72	Q14CZ0	T164	SRAPPRLTVVSPNRA	75 / 8 AA	31
Phosphosite 14:	ABCA4	P78363	S1716	SKHLQFISGVSPTTY	62 / 8 AA	256
Phosphosite 15:	LAMA1	P25391	T2812	VKRKGFITVDGRESP	83 / 6 AA	337
Phosphosite 16:	PIK3R4	Q99570	T680	YGAVGFITVVARQIS	71 / 7 AA	153
Phosphosite 17:	C7	P10643	Y649	SHPQKPFYTVGEKVT	83 / 6 AA	94
Phosphosite 18:	SAPAP1	O14490	S556	TTTKPFISITAQSST	44 / 9 AA	109
Phosphosite 19:	HERV-K_11q22.1 provirus ancestral Env polyprotein	P61570	T368	RDRKPFYTVDLNSSL	83 / 6 AA	75
Phosphosite 20:	HERV-K_22q11.21 provirus ancestral Env polyprotein	P61566	T257	RDRKPFYTVDLNSSL	83 / 6 AA	67