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:	T171
P-Site Sequence:	DQKMRPSTDTITVMV
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	T171	DQKMRPSTDTITVMV	100 / 9 AA	193
Phosphosite 1:	C4A	P0C0L4	T171	DQKMRPSTDTITVMV	100 / 9 AA	193
Phosphosite 2:	C4B	P0C0L5	S170	LDQKMRPSTDTITVM	100 / 8 AA	193
Phosphosite 3:	C4A	P0C0L4	S170	LDQKMRPSTDTITVM	100 / 8 AA	193
Phosphosite 4:	C4B	P0C0L5	T173	KMRPSTDTITVMVEN	100 / 7 AA	193
Phosphosite 5:	C4A	P0C0L4	T173	KMRPSTDTITVMVEN	100 / 7 AA	193
Phosphosite 6:	KIR2DL4	Q99706	T325	QRSKRPSTDTSVCIE	85 / 7 AA	42
Phosphosite 7:	KIR2DL4	Q99706	S324	SQRSKRPSTDTSVCI	85 / 7 AA	42
Phosphosite 8:	SLC6A18	Q96N87	T613	DTDMRPDTDTRPDTD	85 / 7 AA	71
Phosphosite 9:	NCoA5	Q9HCD5	S378	KERLMRSSTDSLPGP	62 / 8 AA	66
Phosphosite 10:	FAM149B1	Q96BN6	S388	KLLMRPGSSTILSTR	62 / 8 AA	65
Phosphosite 11:	NCoA5	Q9HCD5	T379	ERLMRSSTDSLPGPI	62 / 8 AA	66
Phosphosite 12:	AGC1	P16112	S563	RTYGVRPSTETYDVY	71 / 7 AA	250
Phosphosite 13:	CTSG	P08311	T156	RVSMRRGTDTLREVQ	62 / 8 AA	29
Phosphosite 14:	ATM	Q13315	S1923	MRRQKRPSSGTIFND	62 / 8 AA	351
Phosphosite 15:	ATM	Q13315	S1924	RRQKRPSSGTIFNDA	62 / 8 AA	351
Phosphosite 16:	SLC4A1AP	Q9BWU0	T694	VQEMRPPTDLTHFKE	83 / 6 AA	89
Phosphosite 17:	C16orf67	Q96NS8	S35	NMGWMRPSQETTPPD	71 / 7 AA	17
Phosphosite 18:	AGC1	P16112	T564	TYGVRPSTETYDVYC	71 / 7 AA	250
Phosphosite 19:	SHANK2	Q9UPX8	S877	IDTKMRPSLDAGFPT	71 / 7 AA	159
Phosphosite 20:	NCoA5	Q9HCD5	S377	RKERLMRSSTDSLPG	71 / 7 AA	66