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:	S15
P-Site Sequence:	VFPLAPCSRSTSEST
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	S15	VFPLAPCSRSTSEST	100 / 9 AA	36
Phosphosite 1:	IGHG3	P01860	S15	VFPLAPCSRSTSGGT	100 / 9 AA	41
Phosphosite 2:	IGHG2	P01859	S15	VFPLAPCSRSTSEST	100 / 9 AA	36
Phosphosite 3:	IGHG3	P01860	S17	PLAPCSRSTSGGTAA	100 / 7 AA	41
Phosphosite 4:	IGHG4	P01861	S17	PLAPCSRSTSESTAA	100 / 7 AA	36
Phosphosite 5:	IGHG2	P01859	S17	PLAPCSRSTSESTAA	100 / 7 AA	36
Phosphosite 6:	IGHG1	P01857	S15	VFPLAPSSKSTSGGT	77 / 9 AA	36
Phosphosite 7:	FBXL18	Q96ME1	S514	RNSLPPCSRAQSVGD	66 / 9 AA	88
Phosphosite 8:	IGHG1	P01857	S14	SVFPLAPSSKSTSGG	75 / 8 AA	36
Phosphosite 9:	MYO19	Q96H55	S846	HFSQAPCSLSTSPLQ	87 / 8 AA	109
Phosphosite 10:	LHB	P01229	S116	RCGPCRRSTSDCGGP	85 / 7 AA	15
Phosphosite 11:	C5orf17	Q8NAS9	S25	RMSAAPCSRAPSPID	75 / 8 AA	17
Phosphosite 12:	C11orf82	Q8IXT1	S772	SQDFVPCSQSTPISG	62 / 8 AA	112
Phosphosite 13:	EGR2	P11161	S470	GGPLAPCSSRTRTP_	75 / 8 AA	50
Phosphosite 14:	RAI2	Q9Y5P3	S147	LPQEAPCSSSTIHNN	85 / 7 AA	57
Phosphosite 15:	ZNF490	Q9ULM2	S136	EDCPCGKSTSQIPDL	71 / 7 AA	61
Phosphosite 16:	FAM70B	Q8WV15	S274	PLPLQPCSRFPVAPS	83 / 6 AA	35
Phosphosite 17:	IGHG4	P01861	T18	LAPCSRSTSESTAAL	100 / 6 AA	36
Phosphosite 18:	IGHG2	P01859	T18	LAPCSRSTSESTAAL	100 / 6 AA	36
Phosphosite 19:	NCRNA00171	Q2KJ03	S141	YLLFQPCSRSRIKVS	71 / 7 AA	22
Phosphosite 20:	RapGEF1	Q13905	S375	DRDSGQCSRNTSCET	62 / 8 AA	121