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:	T501
P-Site Sequence:	RAVGSGATFSHYYYM
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	T501	RAVGSGATFSHYYYM	100 / 9 AA	193
Phosphosite 1:	C4A	P0C0L4	T501	RAVGSGATFSHYYYM	100 / 9 AA	193
Phosphosite 2:	ACSF2	Q96CM8	S276	SPKGATLSHYNIVNN	85 / 7 AA	68
Phosphosite 3:	UBAP2L	Q14157	T332	SQPASGNTFSHHSMV	66 / 9 AA	115
Phosphosite 4:	PTCHD1	Q96NR3	S44	ILLGASFSRYQVEES	71 / 7 AA	101
Phosphosite 5:	C8orf86	Q6ZUL3	Y142	ISITFSHYPPATLDS	100 / 5 AA	25
Phosphosite 6:	C8orf86	Q6ZUL3	T138	SHSSISITFSHYPPA	71 / 7 AA	25
Phosphosite 7:	TTN	Q8WZ42	S25762	QDGGANISHYIIEKR	71 / 7 AA	3816
Phosphosite 8:	HERC4	Q5GLZ8	S374	IFSGGDQSFSHYSSP	55 / 9 AA	119
Phosphosite 9:	ZNF607	Q96SK3	T597	ECKECGETFSHASHL	71 / 7 AA	81
Phosphosite 10:	PKD1L2	Q7Z442	T492	EVAGLNATFSHEQVS	75 / 8 AA	273
Phosphosite 11:	PSMB5	P28074	T184	GNRISGATFSVGSGS	100 / 6 AA	28
Phosphosite 12:	C4B	P0C0L5	Y505	SGATFSHYYYMILSR	100 / 5 AA	193
Phosphosite 13:	C4A	P0C0L4	Y505	SGATFSHYYYMILSR	100 / 5 AA	193
Phosphosite 14:	PRDM15	P57071	T1319	APVPEDATFSEYSEK	71 / 7 AA	169
Phosphosite 15:	POLA	P09884	T472	PQDLKGETFSHVFGT	83 / 6 AA	166
Phosphosite 16:	Ig heavy chain V-I region SIE	P01761	T28	TCKTSGGTFSGYTIS	75 / 8 AA	14
Phosphosite 17:	ZNF408	Q9H9D4	S291	DPDGSGASFSSSARG	85 / 7 AA	78
Phosphosite 18:	INTS4	Q96HW7	T569	PALFSDHTFRHYAYL	62 / 8 AA	108
Phosphosite 19:	GEMIN5	Q8TEQ6	T71	TERVSGFTFSHHPGQ	75 / 8 AA	169
Phosphosite 20:	ZNF483	Q8TF39	T699	ECNYCGATFSRSSIL	71 / 7 AA	85