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:	Y506
P-Site Sequence:	GATFSHYYYMILSRG
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	Y506	GATFSHYYYMILSRG	100 / 9 AA	193
Phosphosite 1:	C4A	P0C0L4	Y506	GATFSHYYYMILSRG	100 / 9 AA	193
Phosphosite 2:	C4B	P0C0L5	Y505	SGATFSHYYYMILSR	100 / 8 AA	193
Phosphosite 3:	C4A	P0C0L4	Y505	SGATFSHYYYMILSR	100 / 8 AA	193
Phosphosite 4:	C4B	P0C0L5	Y507	ATFSHYYYMILSRGQ	100 / 8 AA	193
Phosphosite 5:	C4A	P0C0L4	Y507	ATFSHYYYMILSRGQ	100 / 8 AA	193
Phosphosite 6:	PIGM	Q9H3S5	Y274	IRHNFSPYFYMLYLT	62 / 8 AA	49
Phosphosite 7:	14-3-3 zeta	P63104	Y178	ALNFSVFYYEILNSP	66 / 9 AA	28
Phosphosite 8:	YWHAE	P62258	Y181	ALNFSVFYYEILNSP	66 / 9 AA	29
Phosphosite 9:	14-3-3 beta	P31946	Y180	ALNFSVFYYEILNSP	66 / 9 AA	28
Phosphosite 10:	C5	P01031	Y501	DKITHYNYLILSKGK	62 / 8 AA	188
Phosphosite 11:	ZNF823	P16415	Y289	GKAFSCYYYTRLHER	66 / 9 AA	70
Phosphosite 12:	TMEM66	Q96BY9	Y162	FASFSDYYYKWSSAD	71 / 7 AA	37
Phosphosite 13:	TMEM66	Q96BY9	Y161	GFASFSDYYYKWSSA	71 / 7 AA	37
Phosphosite 14:	DLD	P09622	Y97	ALLNNSHYYHMAHGT	83 / 6 AA	54
Phosphosite 15:	DLD	P09622	Y98	LLNNSHYYHMAHGTD	83 / 6 AA	54
Phosphosite 16:	KCNE2	Q9Y6J6	Y47	KVDAENFYYVILYLM	57 / 7 AA	14
Phosphosite 17:	KRT19	P08727	Y131	SRDYSHYYTTIQDLR	55 / 9 AA	44
Phosphosite 18:	KRT19	P08727	Y130	PSRDYSHYYTTIQDL	62 / 8 AA	44
Phosphosite 19:	PEX11A	O75192	Y128	TRAAHHYYYSLLLSL	71 / 7 AA	28
Phosphosite 20:	BRWD1	Q9NSI6	Y507	KGTKMKHYFNMIEGQ	66 / 6 AA	263