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:	S227
P-Site Sequence:	SDGLESNSSTQFEVK
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	S227	SDGLESNSSTQFEVK	100 / 9 AA	193
Phosphosite 1:	C4A	P0C0L4	S227	SDGLESNSSTQFEVK	100 / 9 AA	193
Phosphosite 2:	C4B	P0C0L5	S228	DGLESNSSTQFEVKK	100 / 8 AA	193
Phosphosite 3:	C4A	P0C0L4	S228	DGLESNSSTQFEVKK	100 / 8 AA	193
Phosphosite 4:	C4B	P0C0L5	T229	GLESNSSTQFEVKKY	100 / 7 AA	193
Phosphosite 5:	C4A	P0C0L4	T229	GLESNSSTQFEVKKY	100 / 7 AA	193
Phosphosite 6:	C4B	P0C0L5	S225	RFSDGLESNSSTQFE	100 / 7 AA	193
Phosphosite 7:	C4A	P0C0L4	S225	RFSDGLESNSSTQFE	100 / 7 AA	193
Phosphosite 8:	ZNF408	Q9H9D4	S279	PPELQSNSATQQDPD	75 / 8 AA	78
Phosphosite 9:	SUFU	Q9UMX1	S351	KDSLESDSSTAIIPH	66 / 9 AA	54
Phosphosite 10:	PDIA1	P07237	S168	FKDVESDSAKQFLQA	55 / 9 AA	57
Phosphosite 11:	TG	P01266	S528	PLSVGLDSNSSTGTP	85 / 7 AA	305
Phosphosite 12:	KIAA1009	Q5TB80	S160	KELDSNDSTHFKALH	62 / 8 AA	162
Phosphosite 13:	FAM71A	Q8IYT1	S180	LLRPPMESNSSTCGI	85 / 7 AA	63
Phosphosite 14:	TG	P01266	S530	SVGLDSNSSTGTPEA	85 / 7 AA	305
Phosphosite 15:	FAM71A	Q8IYT1	S182	RPPMESNSSTCGIPA	85 / 7 AA	63
Phosphosite 16:	ZBTB44	Q8NCP5	S554	HGFESNSSVQMPVIS	75 / 8 AA	64
Phosphosite 17:	SUFU	Q9UMX1	S349	SRKDSLESDSSTAII	85 / 7 AA	54
Phosphosite 18:	GPR175	Q86W33	S335	ASAASYSSTQFDSAG	75 / 8 AA	41
Phosphosite 19:	USP47	Q96K76	S470	GICLETNSGTEKISK	62 / 8 AA	157
Phosphosite 20:	ZBTB44	Q8NCP5	S553	EHGFESNSSVQMPVI	66 / 9 AA	64