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:	S1508
P-Site Sequence:	LEKLTSLSDRYVSHF
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	S1508	LEKLTSLSDRYVSHF	100 / 9 AA	193
Phosphosite 1:	C4B	P0C0L5	S1508	LEKLTSLSDRYVSHF	100 / 9 AA	193
Phosphosite 2:	SYT3	Q9BQG1	S467	AMDLTGFSDPYVKAS	66 / 9 AA	63
Phosphosite 3:	C4B	P0C0L5	S1506	ADLEKLTSLSDRYVS	100 / 7 AA	193
Phosphosite 4:	C4A	P0C0L4	S1506	ADLEKLTSLSDRYVS	100 / 7 AA	193
Phosphosite 5:	C4B	P0C0L5	Y1511	LTSLSDRYVSHFETE	100 / 6 AA	193
Phosphosite 6:	C4A	P0C0L4	Y1511	LTSLSDRYVSHFETE	100 / 6 AA	193
Phosphosite 7:	SCN10A	Q9Y5Y9	S639	PPCLTSLSQKYLIWD	66 / 9 AA	221
Phosphosite 8:	C1orf9	Q9UBS9	S384	KDFLVSISDRYPTNK	75 / 8 AA	139
Phosphosite 9:	RAPGEF5	Q92565	Y70	DSLLSDRYVVVSGTP	100 / 6 AA	68
Phosphosite 10:	CNTF	P26441	T35	RSDLTALTESYVKHQ	55 / 9 AA	23
Phosphosite 11:	LMX1B	O60663	S346	DTSLTSLSDCFLGSS	66 / 9 AA	42
Phosphosite 12:	CCDC21	Q6P2H3	S748	EDLRTTMSDRYAQDM	62 / 8 AA	86
Phosphosite 13:	CD8A	P01732	S231	SGDKPSLSARYV___	85 / 7 AA	26
Phosphosite 14:	ZFYVE1	Q9HBF4	S404	FKALKALSDRFSGEI	62 / 8 AA	87
Phosphosite 15:	C6orf204	Q5SZL2	S791	DELRTTISDRYAQDM	62 / 8 AA	92
Phosphosite 16:	TRAD	O60229	S1258	DIIPASLSDREVKLR	75 / 8 AA	340
Phosphosite 17:	ZNF320	A2RRD8	S122	EIKKLTSSTDRYDQR	75 / 8 AA	59
Phosphosite 18:	ZNF320	A2RRD8	T123	IKKLTSSTDRYDQRH	75 / 8 AA	59
Phosphosite 19:	VPS37C	A5D8V6	S68	EISRSNLSDRYQELR	71 / 7 AA	39
Phosphosite 20:	TMEM214	Q6NUQ4	S595	GDSLTSLSQRLQIQL	85 / 7 AA	77