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:	S77
P-Site Sequence:	PKVDFTLSSERDFAL
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	S77	PKVDFTLSSERDFAL	100 / 9 AA	193
Phosphosite 1:	C4A	P0C0L4	S77	PKVDFTLSSERDFAL	100 / 9 AA	193
Phosphosite 2:	C4B	P0C0L5	S78	KVDFTLSSERDFALL	100 / 8 AA	193
Phosphosite 3:	C4A	P0C0L4	S78	KVDFTLSSERDFALL	100 / 8 AA	193
Phosphosite 4:	C4B	P0C0L5	T75	CSPKVDFTLSSERDF	100 / 7 AA	193
Phosphosite 5:	C4A	P0C0L4	T75	CSPKVDFTLSSERDF	100 / 7 AA	193
Phosphosite 6:	Wnk4	Q96J92	S728	YNEFILPSERDGFLR	75 / 8 AA	135
Phosphosite 7:	MPHOSPH9	Q99550	S8	MGFFSLSSERNESVI	75 / 8 AA	116
Phosphosite 8:	MPHOSPH9	Q99550	S7	_MGFFSLSSERNESV	75 / 8 AA	116
Phosphosite 9:	WDR75	Q8IWA0	S195	TSRFTLSSSRNKKHA	75 / 8 AA	94
Phosphosite 10:	WDR75	Q8IWA0	S194	TTSRFTLSSSRNKKH	75 / 8 AA	94
Phosphosite 11:	SgK307	Q8IWB6	S890	SALFTLSSHRQGPSA	75 / 8 AA	168
Phosphosite 12:	SgK307	Q8IWB6	S889	NSALFTLSSHRQGPS	75 / 8 AA	168
Phosphosite 13:	DSC1	Q08554	S86	TTHDLILSSERKSFS	75 / 8 AA	100
Phosphosite 14:	HIVEP3	Q5T1R4	S2266	KVSKFTLSSELEGGD	75 / 8 AA	259
Phosphosite 15:	FAM75-like protein FLJ43859	Q6ZUB0	S677	IPGDFPLSSEVRKKL	85 / 7 AA	102
Phosphosite 16:	Protein FAM75D1	Q6ZQQ2	S680	IPGDFPLSSEVRKKL	85 / 7 AA	176
Phosphosite 17:	Putative FAM75-like protein FLJ44082	P0C874	S677	IPGDFPLSSEVRKKL	85 / 7 AA	102
Phosphosite 18:	PARF	Q3YEC7	T468	PVPSQDITLSSEEEA	85 / 7 AA	80
Phosphosite 19:	PTPN11	Q06124	S44	NPGDFTLSVRRNGAV	66 / 9 AA	68
Phosphosite 20:	PARF	Q3YEC7	S470	PSQDITLSSEEEAEV	85 / 7 AA	80