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:	S315
P-Site Sequence:	GQSHISLSKAEFQDA
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	S315	GQSHISLSKAEFQDA	100 / 9 AA	193
Phosphosite 1:	C4A	P0C0L4	S315	GQSHISLSKAEFQDA	100 / 9 AA	193
Phosphosite 2:	C4B	P0C0L5	S313	VNGQSHISLSKAEFQ	100 / 7 AA	193
Phosphosite 3:	C4A	P0C0L4	S313	VNGQSHISLSKAEFQ	100 / 7 AA	193
Phosphosite 4:	C17orf57	Q8IY85	S561	QNFGIYLSKPEFKKI	75 / 8 AA	110
Phosphosite 5:	INPP5B	P32019	S673	NIPSVSLSKREFCFQ	75 / 8 AA	113
Phosphosite 6:	POLE2	P56282	S209	GTVQLDLSKAQFHSG	55 / 9 AA	60
Phosphosite 7:	C16orf50	Q8IY82	S630	REDHITASKREFLRR	66 / 9 AA	104
Phosphosite 8:	TTC28	Q96AY4	S54	SPDGPVLSKAEFVEK	100 / 6 AA	271
Phosphosite 9:	PTPN4	P29074	S199	HQQHIGLSPAEAEFN	75 / 8 AA	106
Phosphosite 10:	S100A11	P31949	S35	DGYNYTLSKTEFLSF	55 / 9 AA	12
Phosphosite 11:	PCM1	Q15154	S1786	CPVSINLSKAETQAL	85 / 7 AA	228
Phosphosite 12:	ITIH5L	Q6UXX5	S872	ISTSISLSKPETPNP	85 / 7 AA	143
Phosphosite 13:	SHANK1	Q9Y566	S576	AEGEISLSKGEKIKV	85 / 7 AA	225
Phosphosite 14:	IFNGR1	P15260	S426	LESHSSLSDSEFPPN	66 / 9 AA	54
Phosphosite 15:	BUD13	Q9BRD0	S8	MAAAPPLSKAEYLKR	71 / 7 AA	71
Phosphosite 16:	TTC16	Q8NEE8	S816	YDSNWSLSKTEYAQG	71 / 7 AA	98
Phosphosite 17:	TTC16	Q8NEE8	T818	SNWSLSKTEYAQGQG	71 / 7 AA	98
Phosphosite 18:	UGT2B28	Q9BY64	T84	YPTSLTKTEFENIIM	71 / 7 AA	61
Phosphosite 19:	UGT2B10	P36537	T83	YPTSLTKTEFENIIM	71 / 7 AA	61
Phosphosite 20:	UGT2B11	O75310	T84	YPTSLTKTEFENIIM	71 / 7 AA	61