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:	S313
P-Site Sequence:	VNGQSHISLSKAEFQ
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	S313	VNGQSHISLSKAEFQ	100 / 9 AA	193
Phosphosite 1:	C4A	P0C0L4	S313	VNGQSHISLSKAEFQ	100 / 9 AA	193
Phosphosite 2:	C4B	P0C0L5	S315	GQSHISLSKAEFQDA	100 / 7 AA	193
Phosphosite 3:	C4A	P0C0L4	S315	GQSHISLSKAEFQDA	100 / 7 AA	193
Phosphosite 4:	CCDC73	Q6ZRK6	S485	DENQSEISLSKTLSL	77 / 9 AA	124
Phosphosite 5:	FCHSD2	O94868	S185	SLFQSRISLQKASVK	77 / 9 AA	84
Phosphosite 6:	C4B	P0C0L5	S310	TKLVNGQSHISLSKA	100 / 6 AA	193
Phosphosite 7:	C4A	P0C0L4	S310	TKLVNGQSHISLSKA	100 / 6 AA	193
Phosphosite 8:	SPTBN4	Q9NRC6	S164	RFQISHISLDKEEFG	75 / 8 AA	417
Phosphosite 9:	LYSMD1	Q96S90	S166	KKLDSQISLSKKAAA	75 / 8 AA	25
Phosphosite 10:	SLC22A8	Q8TCC7	S306	LNLQKEISLAKAKYT	66 / 9 AA	60
Phosphosite 11:	KIAA0427	O43310	S59	ERTQSHISQWTADCS	66 / 9 AA	68
Phosphosite 12:	DLG2	Q15700	S65	YVLQSHISPLKASPA	77 / 9 AA	98
Phosphosite 13:	PRKDC	P78527	S1144	IIEKKHVSLNKAKKR	71 / 7 AA	469
Phosphosite 14:	SHANK1	Q9Y566	S574	AQAEGEISLSKGEKI	55 / 9 AA	225
Phosphosite 15:	ATG2B	Q96BY7	S720	TSYNKHISLHKAFTE	85 / 7 AA	233
Phosphosite 16:	AKD1	Q5TCS8	S332	LKGSSHLSLSKC___	85 / 7 AA	87
Phosphosite 17:	PDZD2	O15018	T1926	SPQTSHKTLSKAVSQ	75 / 8 AA	302
Phosphosite 18:	RRAGC	Q9HB90	S162	TRLHITVSKAYKVNP	71 / 7 AA	44
Phosphosite 19:	SHROOM4	Q9ULL8	S1064	AFSESHISLAPQSTR	71 / 7 AA	166
Phosphosite 20:	SHROOM4	Q9ULL8	S1061	RSRAFSESHISLAPQ	83 / 6 AA	166