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:	C1s
Human P-Site:	S25
P-Site Sequence:	TMYGEILSPNYPQAY
UniProt:	P09871
Intern. Prot. ID:	IPI00017696

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C1s	P09871	S25	TMYGEILSPNYPQAY	100 / 9 AA	77
Phosphosite 1:	CUBN	O60494	S1523	APSGEIHSPNYPSPY	88 / 9 AA	399
Phosphosite 2:	CSMD2	Q7Z408	S1458	GPSGVILSPNYPEPY	88 / 9 AA	380
Phosphosite 3:	C1s	P09871	S189	ALIGEIASPNYPKPY	88 / 9 AA	77
Phosphosite 4:	TLL2	Q9Y6L7	S477	KDAGQIQSPNYPDDY	77 / 9 AA	114
Phosphosite 5:	TLL1	O43897	S475	KNEGQIQSPNYPDDY	77 / 9 AA	115
Phosphosite 6:	CSMD2	Q7Z408	S591	SPSGVVLSPNYPEDY	77 / 9 AA	380
Phosphosite 7:	CSMD2	Q7Z408	S1632	GSDGVVLSPNYPQNY	77 / 9 AA	380
Phosphosite 8:	CSMD2	Q7Z408	S1285	EVSGQVLSPGYPAPY	66 / 9 AA	380
Phosphosite 9:	CUBN	O60494	S2933	GPSGYIISPNYPKQY	77 / 9 AA	399
Phosphosite 10:	MIER2	Q8N344	S51	FNLAEILSQNYSVRG	66 / 9 AA	60
Phosphosite 11:	MASP1	P48740	S33	NMFGQIQSPGYPDSY	66 / 9 AA	79
Phosphosite 12:	CUBN	O60494	S2702	GDSGVITSPNYPNAY	77 / 9 AA	399
Phosphosite 13:	CSMD2	Q7Z408	S1111	GTQGTLLSPNFPVNY	66 / 9 AA	380
Phosphosite 14:	C11orf63	Q6NUN7	S197	LLGSEFLSPNYEHGA	75 / 8 AA	89
Phosphosite 15:	CSMD2	Q7Z408	S937	GSSGTILSPGFPDFY	66 / 9 AA	380
Phosphosite 16:	CSMD2	Q7Z408	S1809	ERRGTILSPGFPEPY	66 / 9 AA	380
Phosphosite 17:	CSMD2	Q7Z408	S1981	EMEGVILSPGFPGNY	66 / 9 AA	380
Phosphosite 18:	C10orf18	Q5VWN6	S675	LQEREILSPLFPRNG	75 / 8 AA	269
Phosphosite 19:	MARCH-X	Q8NA82	S778	QVERERLSRNYPQPR	75 / 8 AA	91
Phosphosite 20:	CSMD2	Q7Z408	S2370	DSTGVILSQSYPGSY	66 / 9 AA	380