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:	IGHG4
Human P-Site:	S21
P-Site Sequence:	CSRSTSESTAALGCL
UniProt:	P01861
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	IGHG4	P01861	S21	CSRSTSESTAALGCL	100 / 9 AA	36
Phosphosite 1:	IGHG2	P01859	S21	CSRSTSESTAALGCL	100 / 9 AA	36
Phosphosite 2:	KOR-1	P41145	S305	ALGSTSHSTAALSSY	88 / 9 AA	43
Phosphosite 3:	KOR-1	P41145	T306	LGSTSHSTAALSSYY	87 / 8 AA	43
Phosphosite 4:	IGHG4	P01861	S19	APCSRSTSESTAALG	100 / 7 AA	36
Phosphosite 5:	IGHG2	P01859	S19	APCSRSTSESTAALG	100 / 7 AA	36
Phosphosite 6:	PSMG1	O95456	S180	TDYKTSESTGSLPSP	75 / 8 AA	33
Phosphosite 7:	MUC3A	Q02505	T1658	TETTSESTPSLSSST	75 / 8 AA	266
Phosphosite 8:	MUC3A	Q02505	S1657	TTETTSESTPSLSSS	75 / 8 AA	266
Phosphosite 9:	C22orf36	Q2VPJ9	S300	TPASTWDSTAAGLGP	75 / 8 AA	35
Phosphosite 10:	IFNA8	P32881	S96	NLFSTKDSSAALDET	66 / 9 AA	22
Phosphosite 11:	IPO9	Q96P70	T759	DPRTSEFTAAFVGRL	75 / 8 AA	116
Phosphosite 12:	MED21	Q13503	T82	SLPSEESTAALQAAS	100 / 6 AA	16
Phosphosite 13:	SLC41A2	Q96JW4	T126	DGRETSETTAMLQDE	75 / 8 AA	62
Phosphosite 14:	DNAH5	Q8TE73	S3216	KLKEASESVAALSKE	75 / 8 AA	529
Phosphosite 15:	KIAA0467	Q5T011	S745	HHRSTSESSASFPRS	66 / 9 AA	278
Phosphosite 16:	RTTN	Q86VV8	T1550	SSLSTSETTVAPSLG	75 / 8 AA	249
Phosphosite 17:	AP4E1	Q9UPM8	S1061	QNVKMSESQAALPSA	75 / 8 AA	127
Phosphosite 18:	FAM161B	Q96MY7	S63	EIDSTSDSTGSIYQN	55 / 9 AA	74
Phosphosite 19:	FAM160B2	Q86V87	S44	YIESTDESTPAKKTD	75 / 8 AA	82
Phosphosite 20:	MACF1	Q9UPN3	S5392	ACSDTSESSAAGGQG	85 / 7 AA	620