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:	MRGPRX3
Human P-Site:	S318
P-Site Sequence:	ETLELSGSRLEQ___
UniProt:	Q96LB0
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	MRGPRX3	Q96LB0	S318	ETLELSGSRLEQ___	100 / 9 AA	36
Phosphosite 1:	MRGPRX1	Q96LB2	S318	EILELSGSRLEQ___	100 / 9 AA	36
Phosphosite 2:	TJAP1	Q5JTD0	S28	LRLEIPGSRLEQEEP	77 / 9 AA	62
Phosphosite 3:	MRGPRX4	Q96LA9	S318	ESLELSGSRLGP___	77 / 9 AA	36
Phosphosite 4:	MRGPRX1	Q96LB2	S316	PEEILELSGSRLEQ_	100 / 7 AA	36
Phosphosite 5:	Uncharacterized protein HSD47	Q6ZVN6	S197	ELGDLRGSRLAQEPA	66 / 9 AA	33
Phosphosite 6:	MRGPRX3	Q96LB0	S316	PQETLELSGSRLEQ_	100 / 7 AA	36
Phosphosite 7:	MRGPRX4	Q96LA9	S316	PEESLELSGSRLGP_	100 / 7 AA	36
Phosphosite 8:	CCDC19	Q9UL16	S423	TEAELRKSRLEQVAF	77 / 9 AA	66
Phosphosite 9:	KCNH6	Q9H252	S824	CWPLKLGSRLEQLQA	100 / 6 AA	110
Phosphosite 10:	KIFC1	Q9BW19	S33	SQLPLSGSRLKRRPD	75 / 8 AA	74
Phosphosite 11:	DTNB	O60941	S79	HTTEISVSRLETVIS	75 / 8 AA	71
Phosphosite 12:	ACTR3	P61158	S354	LKLSEELSGGRLKPK	85 / 7 AA	47
Phosphosite 13:	PRAMEF20	Q5VT98	S328	QLKTLDLSGTRLANF	71 / 7 AA	55
Phosphosite 14:	VPS13C	Q709C8	S2141	CNLSLSTSKLEQMME	75 / 8 AA	422
Phosphosite 15:	RASA1	P20936	S833	QSCELSPSKLEKNED	66 / 9 AA	116
Phosphosite 16:	COG8	Q96MW5	S56	YLRELSGSGLERLRR	77 / 9 AA	68
Phosphosite 17:	ZNF521	Q96K83	S540	RQVHCDLSGSRFGSP	71 / 7 AA	148
Phosphosite 18:	LRG1	P02750	S172	ALGHLDLSGNRLRKL	71 / 7 AA	38
Phosphosite 19:	APC2	O95996	S217	QRAQIRASRLEQIDK	55 / 9 AA	244
Phosphosite 20:	Leucine-rich repeat-containing protein 10B	A6NIK2	S29	GDQQLELSGRRLRRL	85 / 7 AA	33