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:	S746
P-Site Sequence:	AESLRKKSRDKGQAG
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	S746	AESLRKKSRDKGQAG	100 / 9 AA	193
Phosphosite 1:	C4B	P0C0L5	S746	AESLRKKSRDKGQAG	100 / 9 AA	193
Phosphosite 2:	EIF2C2	Q9UKV8	S478	TEQLRKISRDAGMPI	77 / 9 AA	97
Phosphosite 3:	VPS13C	Q709C8	S463	GQKLRKKSADTGEKR	77 / 9 AA	422
Phosphosite 4:	MYH6	P13533	S1926	VNKLRAKSRDIGAKQ	77 / 9 AA	224
Phosphosite 5:	MYH7	P12883	S1924	VNKLRAKSRDIGTKG	77 / 9 AA	223
Phosphosite 6:	MYH13	Q9UKX3	S1928	VNKLRAKSRDVGSQK	77 / 9 AA	224
Phosphosite 7:	SIK	P57059	T594	RQQLRKTTRTKGFLG	66 / 9 AA	85
Phosphosite 8:	RBM28	Q9NW13	T86	KKKLRNKTKEKGKNE	55 / 9 AA	86
Phosphosite 9:	LAMA3	Q16787	S1221	YQILHKKSMDKSLEF	66 / 9 AA	367
Phosphosite 10:	CLCN4	P51793	S40	IDWLREKSRDTDRHR	66 / 9 AA	85
Phosphosite 11:	ABCC5	O15440	S807	TSGSQKKSQDKGPKT	75 / 8 AA	161
Phosphosite 12:	SETD5	Q9C0A6	S175	KPKKRKKSPEKGRAA	75 / 8 AA	158
Phosphosite 13:	EXT1	Q16394	Y740	VSILRKKYRDIERL_	85 / 7 AA	86
Phosphosite 14:	RSK3	Q15349	S22	SVYLRRKSRSKSSSL	66 / 9 AA	83
Phosphosite 15:	SART1	O43290	S56	GGERRKRSRERGGER	62 / 8 AA	90
Phosphosite 16:	DGK-G	P49619	S787	FFSLRRKSRSKD___	66 / 9 AA	89
Phosphosite 17:	ZNF483	Q8TF39	S329	RVYLRKKSRRYNESK	100 / 6 AA	85
Phosphosite 18:	DHX16	O60231	S230	VPELRKKSRREYLAK	100 / 6 AA	119
Phosphosite 19:	C15orf34	Q9H8Q6	S85	CRALRRKSRNLFSEQ	71 / 7 AA	16
Phosphosite 20:	ARHGAP4	P98171	S146	VGRLVKKSRDLEQQL	85 / 7 AA	105