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:	MRGPRX4
Human P-Site:	S171
P-Site Sequence:	LFSGADSSWCETSDF
UniProt:	Q96LA9
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	MRGPRX4	Q96LA9	S171	LFSGADSSWCETSDF	100 / 9 AA	36
Phosphosite 1:	MRGPRX4	Q96LA9	S170	FLFSGADSSWCETSD	100 / 8 AA	36
Phosphosite 2:	MRGPRX1	Q96LB2	S170	FLFSGADSAWCQTSD	75 / 8 AA	36
Phosphosite 3:	MUM1L1	Q5H9M0	S191	TKSLQNSSWCETFPS	85 / 7 AA	79
Phosphosite 4:	CXCR3	P49682	S356	SSSRRDSSWSETSEA	85 / 7 AA	41
Phosphosite 5:	Tbr1	Q16650	S613	PKDLSDSSWIETPSS	75 / 8 AA	74
Phosphosite 6:	CXCR3	P49682	S358	SRRDSSWSETSEASY	85 / 7 AA	41
Phosphosite 7:	MUM1L1	Q5H9M0	S190	ETKSLQNSSWCETFP	83 / 6 AA	79
Phosphosite 8:	GDE	P35573	S1370	KDSYGASSPWCDYQL	62 / 8 AA	175
Phosphosite 9:	MUM1L1	Q5H9M0	T195	QNSSWCETFPSLSED	100 / 5 AA	79
Phosphosite 10:	MRGPRX4	Q96LA9	T175	ADSSWCETSDFIPVA	100 / 5 AA	36
Phosphosite 11:	RAI17	Q9ULJ6	S97	PKSAALLSSWCEELG	100 / 5 AA	115
Phosphosite 12:	SPNS3	Q6ZMD2	S245	GAVGGFRSSWCEDVR	75 / 8 AA	55
Phosphosite 13:	TBC1D22B	Q9NU19	S351	LRSIEADSFWCMSKL	83 / 6 AA	59
Phosphosite 14:	SPNS3	Q6ZMD2	S246	AVGGFRSSWCEDVRY	75 / 8 AA	55
Phosphosite 15:	RAI17	Q9ULJ6	S98	KSAALLSSWCEELGR	100 / 5 AA	115
Phosphosite 16:	KIAA0802	Q9Y4B5	S1464	TEPFPDSSWYLTTSV	62 / 8 AA	209
Phosphosite 17:	FRMPD2	Q68DX3	S291	VHSAADSSWPTTPSQ	66 / 9 AA	144
Phosphosite 18:	CXCR3	P49682	S355	PSSSRRDSSWSETSE	83 / 6 AA	41
Phosphosite 19:	Tbr1	Q16650	S612	KPKDLSDSSWIETPS	71 / 7 AA	74
Phosphosite 20:	JARID2	Q92833	S519	QAHGKADSASCENRS	71 / 7 AA	139