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:	C3
Human P-Site:	S1297
P-Site Sequence:	QELNLDVSLQLPSRS
UniProt:	P01024
Intern. Prot. ID:	IPI00783987

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C3	P01024	S1297	QELNLDVSLQLPSRS	100 / 9 AA	187
Phosphosite 1:	USP5	P45974	S590	VPKKLDVSIEMPEEL	55 / 9 AA	96
Phosphosite 2:	CPAP	Q9HC77	S556	SESSLDVSLQKKLET	85 / 7 AA	153
Phosphosite 3:	VAV1	P15498	T760	CFKSLDTTLQFPFKE	55 / 9 AA	98
Phosphosite 4:	VAV3	Q9UKW4	T761	GFRTLDTTLQFPYKE	55 / 9 AA	98
Phosphosite 5:	PXR	O75469	S212	DLCSLKVSLQLRGED	66 / 9 AA	50
Phosphosite 6:	GluR-delta1	Q9ULK0	S193	SRLGLDVSLQKVDKN	85 / 7 AA	112
Phosphosite 7:	PGS1	Q32NB8	S273	VDAVGDVSLQLQGDD	85 / 7 AA	63
Phosphosite 8:	AHNAK2	Q8IVF2	S4425	TSPNLDVSLPSMEVD	85 / 7 AA	617
Phosphosite 9:	USP22	Q9UPT9	S328	IDPFWDISLDLPGSS	62 / 8 AA	60
Phosphosite 10:	PLXND1	Q9Y4D7	S1561	KPRNLNVSFQGCGMD	71 / 7 AA	212
Phosphosite 11:	FREM3	P0C091	S1979	EEESFSVSLRLPVGG	55 / 9 AA	238
Phosphosite 12:	SYNE2	Q8WXH0	S5555	IEHLNEVSLKLPLSD	71 / 7 AA	796
Phosphosite 13:	RXFP3	Q9NSD7	S42	ANTSGNASLQLPDLW	71 / 7 AA	51
Phosphosite 14:	SPATA5	Q8NB90	S232	ETSSLELSLQLSQLD	55 / 9 AA	98
Phosphosite 15:	METTL4	Q8N3J2	S162	RELILDGSLQLIQEG	85 / 7 AA	54
Phosphosite 16:	MMRN1	Q13201	S580	KINNLTVSLEMEKES	62 / 8 AA	138
Phosphosite 17:	KRBA2	Q6ZNG9	S402	RNQAFDVSLQQSPFE	83 / 6 AA	56
Phosphosite 18:	CEP290	O15078	S1209	KLHQHNVSLQLSEAT	71 / 7 AA	290
Phosphosite 19:	ZNFX1	Q9P2E3	S1054	KNFNLEVSLFERLVK	83 / 6 AA	220
Phosphosite 20:	NCOA2	Q15596	T892	QNLPLDITLQSPTGA	62 / 8 AA	159