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:	S374
P-Site Sequence:	PSAGQRLSQDPGLPD
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	S374	PSAGQRLSQDPGLPD	100 / 9 AA	91
Phosphosite 1:	ZNF498	Q6NSZ9	S183	PGTEEQLSQDPGDET	75 / 8 AA	61
Phosphosite 2:	ALDH1L2	Q3SY69	S659	GIAGQRLSEHPDIRK	75 / 8 AA	102
Phosphosite 3:	MEGF10	Q96KG7	S1095	FSNNGRLSQDPYDLP	100 / 6 AA	122
Phosphosite 4:	SIT	Q9Y3P8	S102	YLQTGRLSQDPEPDQ	100 / 6 AA	21
Phosphosite 5:	AP-2 alpha	P05549	S102	GWPGQRQSQESGLLH	66 / 9 AA	48
Phosphosite 6:	KLC4	Q9NSK0	S18	EPAGHRLSQEEILGS	71 / 7 AA	69
Phosphosite 7:	SLC43A1	O75387	S262	TTMGQRLSQKAPSLE	75 / 8 AA	61
Phosphosite 8:	PDGFRA	P16234	S1013	GLDEQRLSADSGYII	75 / 8 AA	123
Phosphosite 9:	ALDH1L1	O75891	S638	SLVGQRLSDHPDVRK	75 / 8 AA	99
Phosphosite 10:	NUCB1	Q02818	S369	NAKAQRLSQETEALG	71 / 7 AA	54
Phosphosite 11:	UBXD1	Q9BZV1	S388	ASGGQKLSEDENLAL	71 / 7 AA	50
Phosphosite 12:	MGC13057	Q9BSF0	S66	LEYAHRLSQDILCDA	71 / 7 AA	11
Phosphosite 13:	PDE8B	O95263	T128	RIGPMRLTQDPIQVL	83 / 6 AA	99
Phosphosite 14:	FGD1	P98174	S135	EGPQRLRSDPGPPTE	75 / 8 AA	107
Phosphosite 15:	UGCGL2	Q9NYU1	S1417	RSQYQALSQDPNSLS	75 / 8 AA	175
Phosphosite 16:	OR2AT4	A6NND4	S311	AAITKIMSQDPGCDR	83 / 6 AA	36
Phosphosite 17:	SHROOM3	Q8TF72	S1640	PIQTQSLSHDPVSGT	71 / 7 AA	217
Phosphosite 18:	CdGAP	Q2M1Z3	S577	VECSKGLSQEPGAHL	83 / 6 AA	157
Phosphosite 19:	ABCD4	O14678	S147	DNPDQRISQDVERFC	71 / 7 AA	69
Phosphosite 20:	UGGT1	Q9NYU2	S1442	RGQYQGLSQDPNSLS	85 / 7 AA	177