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:	C4B
Human P-Site:	T1517
P-Site Sequence:	RYVSHFETEGPHVLL
UniProt:	P0C0L5
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	C4B	P0C0L5	T1517	RYVSHFETEGPHVLL	100 / 9 AA	193
Phosphosite 1:	C4A	P0C0L4	T1517	RYVSHFETEGPHVLL	100 / 9 AA	193
Phosphosite 2:	STAT2	P52630	T842	SRPSHFYTDGPLMPS	75 / 8 AA	98
Phosphosite 3:	TP53I3	Q53FA7	T291	QILPHFSTEGPQRLL	66 / 9 AA	36
Phosphosite 4:	STAT2	P52630	Y841	VSRPSHFYTDGPLMP	75 / 8 AA	98
Phosphosite 5:	NFAT3	Q14934	T435	HHRAHYETEGSRGAV	55 / 9 AA	95
Phosphosite 6:	NFATC2	Q13469	T426	HHRAHYETEGSRGAV	55 / 9 AA	100
Phosphosite 7:	NFAT4	Q12968	T449	HHRAHYETEGSRGAV	55 / 9 AA	116
Phosphosite 8:	NFAT2	O95644	T444	HHRAHYETEGSRGAV	55 / 9 AA	101
Phosphosite 9:	MPP4	Q96JB8	S457	FNPSHFQSAVPHTTR	55 / 9 AA	73
Phosphosite 10:	NFAT3	Q14934	Y433	RAHHRAHYETEGSRG	71 / 7 AA	95
Phosphosite 11:	NFATC2	Q13469	Y424	KPHHRAHYETEGSRG	71 / 7 AA	100
Phosphosite 12:	NFAT4	Q12968	Y447	KTHHRAHYETEGSRG	71 / 7 AA	116
Phosphosite 13:	NFAT2	O95644	Y442	KSHHRAHYETEGSRG	71 / 7 AA	101
Phosphosite 14:	A2LD1	Q9BVM4	S139	PHHDSYDSEGPHGLR	57 / 7 AA	17
Phosphosite 15:	LOC73072	Q9H6K5	T470	GLCTIYETEGPESAT	83 / 6 AA	60
Phosphosite 16:	ZNF516	Q92618	S1126	AHSVVFESDGPRGSE	57 / 7 AA	124
Phosphosite 17:	IQCA1L	A6NCM1	T287	AHDSLVETEGPDMKE	66 / 9 AA	95
Phosphosite 18:	UBE3A	Q05086	T608	FNPSSFETEGQFTLI	75 / 8 AA	101
Phosphosite 19:	UBE2F	Q969M7	T85	GGKFQFETEVPDAYN	62 / 8 AA	21
Phosphosite 20:	p53	P04637	T387	HKKLMFKTEGPDSD_	71 / 7 AA	44