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:	S449
P-Site Sequence:	SELQLSVSAGSPHPA
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	S449	SELQLSVSAGSPHPA	100 / 9 AA	193
Phosphosite 1:	C4A	P0C0L4	S449	SELQLSVSAGSPHPA	100 / 9 AA	193
Phosphosite 2:	C4B	P0C0L5	S447	TISELQLSVSAGSPH	100 / 7 AA	193
Phosphosite 3:	C4A	P0C0L4	S447	TISELQLSVSAGSPH	100 / 7 AA	193
Phosphosite 4:	SPANXN4	Q5MJ08	S89	EKGDLDISAGSPQDG	66 / 9 AA	11
Phosphosite 5:	PALD	Q9ULE6	S13	STAQQTVSAGTPFEG	66 / 9 AA	97
Phosphosite 6:	MLLT10	P55197	S496	NVSHLSVSSASPTSS	66 / 9 AA	109
Phosphosite 7:	TTLL6	Q8N841	S650	STTQLSISPKSPPTL	66 / 9 AA	96
Phosphosite 8:	KIAA1267	Q7Z3B3	S829	LVRQLSTSSDSPAPA	66 / 9 AA	121
Phosphosite 9:	CCDC90A	Q96AQ8	S143	CRRELSLSAGSLQLE	75 / 8 AA	40
Phosphosite 10:	FHOD3	Q2V2M9	S542	SQEALTVSASSPGTP	75 / 8 AA	159
Phosphosite 11:	PLAGL1	Q9UM63	S290	ASLHPSVSPGSPPPP	66 / 9 AA	51
Phosphosite 12:	MVP	Q14764	S501	QFTVLSLSAGRPKRP	75 / 8 AA	99
Phosphosite 13:	TEX264	Q9Y6I9	S40	GVEVSAGSPPIRNVT	100 / 6 AA	34
Phosphosite 14:	C4B	P0C0L5	S452	QLSVSAGSPHPAIAR	100 / 6 AA	193
Phosphosite 15:	C4A	P0C0L4	S452	QLSVSAGSPHPAIAR	100 / 6 AA	193
Phosphosite 16:	KCNG1	Q9UIX4	S495	TKSQLSVSQDSDILF	75 / 8 AA	58
Phosphosite 17:	ZEB1	P37275	S319	SSPSLSASPGSPTRP	75 / 8 AA	124
Phosphosite 18:	SYNGAP1	Q96PV0	S1079	KSQQLTVSAAQKPRP	71 / 7 AA	148
Phosphosite 19:	RGL3	Q3MIN7	S552	SSPTSSVSPGSPPSS	85 / 7 AA	78
Phosphosite 20:	SYNGAP1	Q96PV0	T1077	RGKSQQLTVSAAQKP	71 / 7 AA	148