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:	C4B
Human P-Site:	S428
P-Site Sequence:	IQQNTDGSGQVSIPI
UniProt:	P0C0L5
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C4B	P0C0L5	S428	IQQNTDGSGQVSIPI	100 / 9 AA	193
Phosphosite 1:	C4A	P0C0L4	S428	IQQNTDGSGQVSIPI	100 / 9 AA	193
Phosphosite 2:	MYT1L	Q9UL68	S39	PTPGCDGSGHVSGKY	85 / 7 AA	133
Phosphosite 3:	MYT1L	Q9UL68	S1015	PTPGCDGSGHVSGSF	85 / 7 AA	133
Phosphosite 4:	ITGBL1	O95965	S170	KCDNSDGSGLVYGKF	75 / 8 AA	54
Phosphosite 5:	BCL2L13	Q9BXK5	S232	YILPSDNSGQVSPPE	75 / 8 AA	53
Phosphosite 6:	GTF2I	P78347	S987	EIKETDGSSQIKQEP	62 / 8 AA	112
Phosphosite 7:	GPR179	Q6PRD1	S2344	SSSLTEDSGQVAFEA	62 / 8 AA	257
Phosphosite 8:	GTF2I	P78347	S988	IKETDGSSQIKQEPD	71 / 7 AA	112
Phosphosite 9:	C18orf55	Q9BVV7	S80	RKAKEDGSKQVSVHR	85 / 7 AA	28
Phosphosite 10:	CAPN3	P20807	S709	ALMDTDGSGKLNLQE	55 / 9 AA	94
Phosphosite 11:	L3MBTL	Q9Y468	S562	PTPGCDGSGHVTGKF	71 / 7 AA	86
Phosphosite 12:	ST18	O60284	S732	PTPGCDGSGHVTGNY	71 / 7 AA	115
Phosphosite 13:	GPI	P06744	S532	IEPELDGSAQVTSHD	71 / 7 AA	63
Phosphosite 14:	MCM5	P33992	S306	IQVDTDGSGRSFAGA	71 / 7 AA	82
Phosphosite 15:	PPP1R12B	O60237	S823	DEDETDGSEEVKETW	62 / 8 AA	110
Phosphosite 16:	DGK-A	P23743	S172	KEIDYDGSGSVSQAE	66 / 9 AA	83
Phosphosite 17:	RasGRF2	O14827	S543	SDDDSKGSGQVFGHL	62 / 8 AA	141
Phosphosite 18:	CMYA3	A4UGR9	S573	LYVIRDGSGQMLEIK	83 / 6 AA	382
Phosphosite 19:	WDR59	Q6PJI9	S94	LYKWKDGSGEVGTTL	62 / 8 AA	110
Phosphosite 20:	CAPNS1	P04632	T251	KSLDKDGTGQIQVNI	50 / 8 AA	28