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:	Y28
P-Site Sequence:	GEILSPNYPQAYPSE
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	Y28	GEILSPNYPQAYPSE	100 / 9 AA	77
Phosphosite 1:	CSMD2	Q7Z408	Y1635	GVVLSPNYPQNYTSG	88 / 9 AA	380
Phosphosite 2:	CSMD2	Q7Z408	Y594	GVVLSPNYPEDYGNH	77 / 9 AA	380
Phosphosite 3:	CSMD2	Q7Z408	Y1461	GVILSPNYPEPYPPG	77 / 9 AA	380
Phosphosite 4:	CUBN	O60494	Y2705	GVITSPNYPNAYDSL	87 / 8 AA	399
Phosphosite 5:	MASP2	O00187	Y509	LKRLSPHYTQAWSEA	66 / 9 AA	76
Phosphosite 6:	CUBN	O60494	Y1181	GTFISPNYPMPYYHS	66 / 9 AA	399
Phosphosite 7:	LBA1	O15050	Y2299	AFLLSSNYPEEFEKL	55 / 9 AA	284
Phosphosite 8:	C10orf120	Q5SQS8	Y119	LQLLSPDYKQAMEYK	75 / 8 AA	39
Phosphosite 9:	CUBN	O60494	Y2936	GYIISPNYPKQYDNN	66 / 9 AA	399
Phosphosite 10:	TLL2	Q9Y6L7	Y480	GQIQSPNYPDDYRPS	75 / 8 AA	114
Phosphosite 11:	BMP1	P13497	Y451	GHIQSPNYPDDYRPS	75 / 8 AA	111
Phosphosite 12:	TLL1	O43897	Y478	GQIQSPNYPDDYRPM	75 / 8 AA	115
Phosphosite 13:	MARCH-X	Q8NA82	Y781	RERLSRNYPQPRTEE	75 / 8 AA	91
Phosphosite 14:	C1s	P09871	Y192	GEIASPNYPKPYPEN	75 / 8 AA	77
Phosphosite 15:	CUBN	O60494	Y2108	GIITSPKYPETYPSN	62 / 8 AA	399
Phosphosite 16:	CSMD2	Q7Z408	S591	SPSGVVLSPNYPEDY	100 / 6 AA	380
Phosphosite 17:	CSMD2	Q7Z408	S1632	GSDGVVLSPNYPQNY	100 / 6 AA	380
Phosphosite 18:	CSMD2	Q7Z408	S1458	GPSGVILSPNYPEPY	100 / 6 AA	380
Phosphosite 19:	C1s	P09871	S25	TMYGEILSPNYPQAY	100 / 6 AA	77
Phosphosite 20:	CSMD2	Q7Z408	Y1288	GQVLSPGYPAPYEHN	66 / 9 AA	380