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:	C4A
Human P-Site:	S399
P-Site Sequence:	EMSGSPASGIPVKVS
UniProt:	P0C0L4
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C4A	P0C0L4	S399	EMSGSPASGIPVKVS	100 / 9 AA	193
Phosphosite 1:	C4B	P0C0L5	S399	EMSGSPASGIPVKVS	100 / 9 AA	193
Phosphosite 2:	CYTSB	Q5M775	S850	KTPRSPLSGIPVRTA	87 / 8 AA	119
Phosphosite 3:	ARHGEF16	Q5VV41	S33	DAGGNPASGLPMVRG	66 / 9 AA	80
Phosphosite 4:	BCL9	O00512	S294	PSVGSPASSTPLPPD	66 / 9 AA	149
Phosphosite 5:	MLXIP	Q9HAP2	T804	CQQLLPATGVPVTRR	71 / 7 AA	101
Phosphosite 6:	UTRN	P46939	S2213	VVLVSSASDIPVQSH	75 / 8 AA	394
Phosphosite 7:	EFHA2	Q86XE3	T96	PRAGSPATGRPSKSA	75 / 8 AA	61
Phosphosite 8:	OGDHL	Q9ULD0	T594	KSMTCPATGIPEDML	71 / 7 AA	114
Phosphosite 9:	ZFHX4	Q86UP3	S611	GGDGSPGSGIECPKC	85 / 7 AA	394
Phosphosite 10:	ARPP-21	Q9UBL0	T760	GQGSLPATGMPVYCN	71 / 7 AA	89
Phosphosite 11:	TCF7L1	Q9HCS4	S303	AHPGLPTSGIPHPAI	75 / 8 AA	63
Phosphosite 12:	ARG1	P05089	T244	DPSFTPATGTPVVGG	62 / 8 AA	35
Phosphosite 13:	MKP5	Q9Y6W6	S138	SGVGSPVSGTPKQLA	75 / 8 AA	53
Phosphosite 14:	C10orf88	Q9H8K7	T427	QNPNSPPTGIPLRHY	55 / 9 AA	49
Phosphosite 15:	FOXA3	P55318	S278	LDCGSPASSTPYFTG	75 / 8 AA	37
Phosphosite 16:	GGA3	Q9NZ52	S351	PAPTPPSSGIPILPP	71 / 7 AA	78
Phosphosite 17:	SMPD3	Q9NY59	S230	EAANGPASGDPVDSS	85 / 7 AA	71
Phosphosite 18:	FLJ37538	Q6ZVC0	S677	EDRGPGTSGIPVRSQ	66 / 9 AA	88
Phosphosite 19:	SirT6	Q8N6T7	S59	GAGISTASGIPDFRG	85 / 7 AA	39
Phosphosite 20:	CREBBP	Q92793	S448	NQQTILGSPASGIQN	100 / 6 AA	265