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:	S339
P-Site Sequence:	VGATSFYSTCQSNGK
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	S339	VGATSFYSTCQSNGK	100 / 9 AA	77
Phosphosite 1:	C1s	P09871	Y338	RVGATSFYSTCQSNG	100 / 8 AA	77
Phosphosite 2:	C1s	P09871	T340	GATSFYSTCQSNGKW	100 / 8 AA	77
Phosphosite 3:	PKP1	Q13835	T189	NRYSFYSTCSGQKAI	100 / 6 AA	83
Phosphosite 4:	PKP1	Q13835	Y187	TQNRYSFYSTCSGQK	100 / 6 AA	83
Phosphosite 5:	PKP1	Q13835	S188	QNRYSFYSTCSGQKA	100 / 6 AA	83
Phosphosite 6:	FAM102B	Q5T8I3	S220	QSKVSGYSTCHSRSS	66 / 9 AA	39
Phosphosite 7:	FAM102B	Q5T8I3	T221	SKVSGYSTCHSRSSS	75 / 8 AA	39
Phosphosite 8:	INPPL1	O15357	T772	FFIEFYSTCLEEYKK	100 / 5 AA	139
Phosphosite 9:	C1s	P09871	S336	EGRVGATSFYSTCQS	100 / 6 AA	77
Phosphosite 10:	DRD3	P35462	Y256	HLELKRYYSICQDTA	50 / 8 AA	44
Phosphosite 11:	DRD3	P35462	S257	LELKRYYSICQDTAL	50 / 8 AA	44
Phosphosite 12:	FAM109A	Q8N4B1	Y11	NERSLAFYATCDAPV	57 / 7 AA	27
Phosphosite 13:	KRTHA7	O76014	S6	__MTSFYSTSSCPLG	100 / 6 AA	50
Phosphosite 14:	BRAP	Q7Z569	Y218	QADADSFYMTCNGRQ	83 / 6 AA	67
Phosphosite 15:	CYP4F22	Q6NT55	Y50	LRLCRSFYITCRRLR	71 / 7 AA	62
Phosphosite 16:	PR (Progesterone)	P06401	Y795	RMKESSFYSLCLTMW	62 / 8 AA	99
Phosphosite 17:	DNAJC6	O75061	Y265	LIGETKIYSTCTDFE	71 / 7 AA	100
Phosphosite 18:	DNAJC6	O75061	S266	IGETKIYSTCTDFER	71 / 7 AA	100
Phosphosite 19:	MUC5B	Q9HC84	T403	SPGTSFNTTCSSCTC	66 / 9 AA	590
Phosphosite 20:	PHKB	Q93100	Y1055	QDDMTSFYNTPPLGK	62 / 8 AA	125