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:	MARCH-X
Human P-Site:	S350
P-Site Sequence:	SSRRSEPSHGSLRIS
UniProt:	Q8NA82
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	MARCH-X	Q8NA82	S350	SSRRSEPSHGSLRIS	100 / 9 AA	91
Phosphosite 1:	EPS15L1	Q9UBC2	S241	DSLRSTPSHGSVSSL	77 / 9 AA	94
Phosphosite 2:	HCN3	Q9P1Z3	S562	QRKRSEPSPGSSGGI	87 / 8 AA	86
Phosphosite 3:	JPH1	Q9HDC5	S171	ASLRSEQSNGSVLHD	66 / 9 AA	72
Phosphosite 4:	FOXI3	A8MTJ6	S245	RKRRSEASNGSTVAA	75 / 8 AA	43
Phosphosite 5:	MARCH-X	Q8NA82	S347	RGHSSRRSEPSHGSL	100 / 6 AA	91
Phosphosite 6:	MARCH-X	Q8NA82	S353	RSEPSHGSLRISNAM	100 / 6 AA	91
Phosphosite 7:	CCDC40	Q4G0X9	S162	RVTSPEPSHGVLGPS	85 / 7 AA	130
Phosphosite 8:	AIM1L	Q8N1P7	S103	AWGTSDPSVGSLKPM	75 / 8 AA	69
Phosphosite 9:	EPS15L1	Q9UBC2	T239	PKDSLRSTPSHGSVS	85 / 7 AA	94
Phosphosite 10:	MYO9A	B2RTY4	S1327	GTPDSESSQGSLELL	75 / 8 AA	293
Phosphosite 11:	FLG	P20930	S558	SQGRSDASHGQSGSR	71 / 7 AA	435
Phosphosite 12:	FLG	P20930	S1531	PQGRSDASHGQSGPR	71 / 7 AA	435
Phosphosite 13:	KIAA1958	Q8N8K9	S40	KHLLSEGSHGNLTAM	75 / 8 AA	79
Phosphosite 14:	FLG	P20930	S2504	SQGRSDASHGHSGSR	71 / 7 AA	435
Phosphosite 15:	FAM21A	Q641Q2	S874	KTKLLEPSVGSLFGD	85 / 7 AA	147
Phosphosite 16:	C13orf23	Q86XN7	S629	PSHSGNPSHGTLGLS	71 / 7 AA	96
Phosphosite 17:	CACNA1F	O60840	S1888	PGTHSDPSHGKRGSA	71 / 7 AA	221
Phosphosite 18:	WDR49	Q8IV35	S348	SAGRSQPSHPMADHS	83 / 6 AA	79
Phosphosite 19:	WDR49	Q8IV35	S345	KLLSAGRSQPSHPMA	83 / 6 AA	79
Phosphosite 20:	HCN4	Q9Y3Q4	S1048	APPRASGSHGSLLLP	66 / 9 AA	129