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:	Y946
P-Site Sequence:	IHREELVYELNPLDH
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	Y946	IHREELVYELNPLDH	100 / 9 AA	193
Phosphosite 1:	C4A	P0C0L4	Y946	IHREELVYELNPLDH	100 / 9 AA	193
Phosphosite 2:	DST	Q03001	T1951	EQDMRELTYELNALQ	85 / 7 AA	372
Phosphosite 3:	C6orf142	Q5VWP3	Y352	LKKEEEVYEPNPFSK	77 / 9 AA	50
Phosphosite 4:	SFRS6	Q13247	Y53	RDADDAVYELNGKEL	62 / 8 AA	40
Phosphosite 5:	SFRS4	Q08170	Y53	RDADDAVYELNGKDL	62 / 8 AA	57
Phosphosite 6:	BRWD1	Q9NSI6	Y985	AVRRNNIYELNPNKE	83 / 6 AA	263
Phosphosite 7:	PDE10A	Q9Y233	Y76	TNMQGVVYELNSYIE	55 / 9 AA	88
Phosphosite 8:	ATP10A	O60312	S220	RGFSELVSEFNPLTF	75 / 8 AA	168
Phosphosite 9:	MAB21L2	Q9Y586	Y10	AAQAKLVYQLNKYYT	62 / 8 AA	41
Phosphosite 10:	TSN	Q15631	Y210	KKVEEVVYDLSIRGF	62 / 8 AA	26
Phosphosite 11:	PCDH1	Q08174	S544	SNAELVYSLEPEPAA	75 / 8 AA	115
Phosphosite 12:	CDC14A	Q9UNH5	Y45	SIDEELVYENFYADF	100 / 6 AA	67
Phosphosite 13:	TMEM30B	Q3MIR4	Y234	PNWRRPVYELSPDPN	83 / 6 AA	39
Phosphosite 14:	RanBP2	P49792	Y2636	DDDVLIVYELTPTAE	71 / 7 AA	358
Phosphosite 15:	RanBP2	P49792	T2639	VLIVYELTPTAEQKA	83 / 6 AA	358
Phosphosite 16:	C21orf25	Q9Y426	T317	LMWEEEFTFELNAKS	62 / 8 AA	76
Phosphosite 17:	TMEM30B	Q3MIR4	S237	RRPVYELSPDPNNTG	83 / 6 AA	39
Phosphosite 18:	PGAM2	P15259	Y218	PTGIPIVYELNKELK	83 / 6 AA	29
Phosphosite 19:	SFRS5	Q13243	Y55	RDADDAVYELDGKEL	50 / 8 AA	31
Phosphosite 20:	HS1	P14317	Y360	QVEEEPVYEAEPEPE	66 / 9 AA	54