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:	S877
P-Site Sequence:	KPFITVVSPKSPHLH
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	S877	KPFITVVSPKSPHLH	100 / 9 AA	119
Phosphosite 1:	CXXC6	Q8NFU7	S1368	SGGITVVSTKSEEEV	87 / 8 AA	235
Phosphosite 2:	RIMS1	Q86UR5	S728	RPSISVISPTSPGAL	66 / 9 AA	189
Phosphosite 3:	PKHD1L1	Q86WI1	S2097	TPLITAVSPKRGSTA	85 / 7 AA	466
Phosphosite 4:	RIMS2	Q9UQ26	S791	RPSISVTSPMSPGML	66 / 9 AA	160
Phosphosite 5:	GGA1	Q9UJY5	S99	NELIKVVSPKYLGSR	85 / 7 AA	70
Phosphosite 6:	GGA3	Q9NZ52	S98	NELIKVVSPKYLGDR	85 / 7 AA	78
Phosphosite 7:	NLRC5	Q86WI3	S1176	QLSQTGLSPKSPFLL	75 / 8 AA	205
Phosphosite 8:	IMMP2L	Q96T52	S81	GDIVSLVSPKNPEQK	55 / 9 AA	20
Phosphosite 9:	C4orf21	Q86YA3	T874	EVRKPFITVVSPKSP	100 / 6 AA	119
Phosphosite 10:	C4orf21	Q86YA3	S880	ITVVSPKSPHLHKDS	100 / 6 AA	119
Phosphosite 11:	TANC2	Q9HCD6	S1878	SSVDTVLSPTSPGNL	75 / 8 AA	220
Phosphosite 12:	KIAA1671	Q9BY89	S1363	PGSGVRVSPKSPPTD	100 / 6 AA	197
Phosphosite 13:	KIAA1671	Q9BY89	S1366	GVRVSPKSPPTDQKK	100 / 6 AA	197
Phosphosite 14:	C5	P01031	T487	EHLNIIVTPKSPYID	71 / 7 AA	188
Phosphosite 15:	MLX	Q9UH92	S45	RRGASLLSPKSPTLS	62 / 8 AA	33
Phosphosite 16:	C16orf72	Q14CZ0	S167	PPRLTVVSPNRATST	55 / 9 AA	31
Phosphosite 17:	RAD51AP1	Q96B01	S324	SSPLVVVSVKSPNQS	66 / 9 AA	38
Phosphosite 18:	DCHS2	Q6V1P9	S2233	GSHITVVSANDRDTG	55 / 9 AA	322
Phosphosite 19:	RUNDC1	Q96C34	T511	VTGGTVVTPKQSLLT	83 / 6 AA	68
Phosphosite 20:	GAK	O14976	S326	ARNVNPKSPITELLE	83 / 6 AA	143