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:	S319
P-Site Sequence:	SHHKRSRSGGTSTPQ
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	S319	SHHKRSRSGGTSTPQ	100 / 9 AA	91
Phosphosite 1:	MARCH-X	Q8NA82	S317	SPSHHKRSRSGGTST	100 / 7 AA	91
Phosphosite 2:	GPC2	Q8N158	S553	YNQGRSRSGGASIGF	87 / 8 AA	63
Phosphosite 3:	IRS1	P35568	S527	RFRKRTHSAGTSPTI	66 / 9 AA	132
Phosphosite 4:	ARFGEF3	Q5TH69	S2095	RQDKRPRSGSTGSSL	75 / 8 AA	241
Phosphosite 5:	C12orf35	Q9HCM1	S1740	YLEKRSRSLGSSPVK	77 / 9 AA	195
Phosphosite 6:	GPAM	Q9HCL2	S321	LEGTRSRSGKTSCAR	87 / 8 AA	94
Phosphosite 7:	DDX50	Q9BQ39	S729	GNRNRSRSGGHKRSF	85 / 7 AA	83
Phosphosite 8:	TRIM28	Q13263	S471	HVSGVKRSRSGEGEV	100 / 6 AA	89
Phosphosite 9:	TRIM28	Q13263	S473	SGVKRSRSGEGEVSG	100 / 6 AA	89
Phosphosite 10:	DDX50	Q9BQ39	S727	RSGNRNRSRSGGHKR	85 / 7 AA	83
Phosphosite 11:	PRPF38B	Q5VTL8	S473	KSNKRSRSGSQGRTD	100 / 6 AA	64
Phosphosite 12:	PRPF38B	Q5VTL8	S471	KEKSNKRSRSGSQGR	100 / 6 AA	64
Phosphosite 13:	ACRC	Q96QF7	S56	ILNVQSRSGDTSGSS	75 / 8 AA	76
Phosphosite 14:	MPZL3	Q6UWV2	S194	GLKKRSRSGYKKSSI	100 / 6 AA	26
Phosphosite 15:	ODFP1	Q14990	S64	CYSKRSRSCGLCDLY	66 / 9 AA	28
Phosphosite 16:	DGK-D	Q16760	S1114	DLAKRSRSGKFRLVT	100 / 6 AA	133
Phosphosite 17:	SRRM2	Q9UQ35	S1638	ALPRRSRSGSSSKGR	66 / 9 AA	300
Phosphosite 18:	SPINK5	Q9NQ38	S762	NEYSRSRSNGTGSES	85 / 7 AA	121
Phosphosite 19:	LUZP4	Q9P127	S234	GHSKRSRSQGDLVDT	85 / 7 AA	36
Phosphosite 20:	MBD5	Q9P267	S462	ASPQRSRSSSTSSDH	66 / 9 AA	160