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:	S1171
P-Site Sequence:	LKQRVEASISKANSF
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	S1171	LKQRVEASISKANSF	100 / 9 AA	193
Phosphosite 1:	C4A	P0C0L4	S1171	LKQRVEASISKANSF	100 / 9 AA	193
Phosphosite 2:	C4B	P0C0L5	S1173	QRVEASISKANSFLG	100 / 7 AA	193
Phosphosite 3:	C4A	P0C0L4	S1173	QRVEASISKANSFLG	100 / 7 AA	193
Phosphosite 4:	ZNF516	Q92618	S363	IHRRVEASRTRAPAE	66 / 9 AA	124
Phosphosite 5:	SKIL	P12757	S479	LCSRLDASISNNSTS	62 / 8 AA	77
Phosphosite 6:	SLC14A2	Q15849	T534	SSEIKVETNISKTSW	62 / 8 AA	101
Phosphosite 7:	CCDC13	Q8IYE1	S577	LQKRVEESNSKLLES	75 / 8 AA	81
Phosphosite 8:	FRMPD3	Q5JV73	T459	QGVARVETSIMDAKP	83 / 6 AA	199
Phosphosite 9:	VCAN	P13611	T1015	DQTRLEATISPETMR	71 / 7 AA	373
Phosphosite 10:	USP50	Q70EL3	S259	QETAVRASISKAPKI	87 / 8 AA	39
Phosphosite 11:	ANKRD58	A6NJG2	S286	TSRRVAASRTKAKDT	66 / 9 AA	34
Phosphosite 12:	HMCN1	Q96RW7	S5082	LGFKIHASISKGDRS	55 / 9 AA	613
Phosphosite 13:	SART3	Q15020	S650	KRRRVENSIPAAGET	66 / 9 AA	110
Phosphosite 14:	SSH1	Q8WYL5	S854	PASRLEASIPEESQD	71 / 7 AA	116
Phosphosite 15:	ATP2B2	Q01814	S344	QDGNVDASQSKAKQQ	75 / 8 AA	137
Phosphosite 16:	ARHGAP12	Q8IWW6	S303	PRWTRDASISKGDFQ	71 / 7 AA	96
Phosphosite 17:	ARHGAP12	Q8IWW6	S305	WTRDASISKGDFQNP	71 / 7 AA	96
Phosphosite 18:	ENaC alpha	P37088	S376	LRPGVETSISMRKET	71 / 7 AA	76
Phosphosite 19:	FAM81A	Q8TBF8	S189	LLNRVDLSISEQSTK	71 / 7 AA	42
Phosphosite 20:	G-gamma(12)	Q9UBI6	S26	QQLRLEASIERIKVS	62 / 8 AA	8