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:	Y53
P-Site Sequence:	EGYGIHLYFTHLDIE
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	Y53	EGYGIHLYFTHLDIE	100 / 9 AA	77
Phosphosite 1:	BTNL8	Q6UX41	Y388	RLNGEHLYFTLNPRF	85 / 7 AA	57
Phosphosite 2:	DBH	P09172	Y352	DSSGIRLYYTAKLRR	71 / 7 AA	69
Phosphosite 3:	GLB1L2	Q8IW92	Y174	FTEAVDLYFDHLMSR	55 / 9 AA	72
Phosphosite 4:	LEPREL2	Q8IVL6	S559	PERPLHLSFTHLVCR	75 / 8 AA	82
Phosphosite 5:	NLRP4	Q96MN2	Y122	SVTEIHLYFEEEVKQ	83 / 6 AA	113
Phosphosite 6:	FRMD1	Q8N878	Y162	DHRARHLYYCHLKER	55 / 9 AA	63
Phosphosite 7:	MASP2	O00187	Y60	PGYRLRLYFTHFDLE	62 / 8 AA	76
Phosphosite 8:	RNF17	Q9BXT8	Y1340	EKLSIHLYFDGMSLS	83 / 6 AA	185
Phosphosite 9:	TMEM63B	Q5T3F8	T299	ERGKLYFTNLQSKEN	83 / 6 AA	95
Phosphosite 10:	HYDIN	Q4G0P3	Y2999	AEYGLHLYFQPTKPV	83 / 6 AA	576
Phosphosite 11:	TMEM63B	Q5T3F8	Y297	KAERGKLYFTNLQSK	83 / 6 AA	95
Phosphosite 12:	UBE4A	Q14139	Y299	AYLDILLYFTRQKDM	62 / 8 AA	123
Phosphosite 13:	ZNF833	Q6ZTB9	Y25	AFDNLHLYLTHERTH	62 / 8 AA	22
Phosphosite 14:	TSC22D4	Q9Y3Q8	T270	SSPALYFTHDASLVH	100 / 5 AA	41
Phosphosite 15:	PDZD2	O15018	T2215	GEDHLYFTPRPATRT	83 / 6 AA	302
Phosphosite 16:	TSC22D4	Q9Y3Q8	Y268	RPSSPALYFTHDASL	100 / 5 AA	41
Phosphosite 17:	PDZD2	O15018	Y2213	PSGEDHLYFTPRPAT	100 / 5 AA	302
Phosphosite 18:	NLRC4	Q9NPP4	Y562	VECGIHLYQESTSKS	100 / 5 AA	116
Phosphosite 19:	PNRC1	Q12796	Y206	LVHGIHLYEQPKINR	100 / 5 AA	35
Phosphosite 20:	BTNL8	Q6UX41	T390	NGEHLYFTLNPRFIS	100 / 5 AA	57