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:	Y453
P-Site Sequence:	SSQNSLDYFISGRPI
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	Y453	SSQNSLDYFISGRPI	100 / 9 AA	91
Phosphosite 1:	MARCH-X	Q8NA82	S456	NSLDYFISGRPISPR	100 / 6 AA	91
Phosphosite 2:	MARCH-X	Q8NA82	S450	YLNSSQNSLDYFISG	100 / 6 AA	91
Phosphosite 3:	ATP5F1	P24539	Y199	EVKNRLDYHISVQNM	75 / 8 AA	29
Phosphosite 4:	MYO10	Q9HD67	Y1428	LTHNSLDYYKSSEKN	66 / 9 AA	237
Phosphosite 5:	CDCA8	Q53HL2	Y73	REMNWLDYFALGGNK	66 / 9 AA	31
Phosphosite 6:	C4orf31	Q8TB73	Y135	YKGNDVEYFISSSSP	55 / 9 AA	65
Phosphosite 7:	USP32	Q8NFA0	S764	PLTQYFISGRHLYEL	83 / 6 AA	182
Phosphosite 8:	USP6	P35125	S562	PLTQYFISGRHLYEL	83 / 6 AA	159
Phosphosite 9:	SEC62	Q99442	Y46	MMGHRVDYFIASKAV	44 / 9 AA	46
Phosphosite 10:	USP32	Q8NFA0	Y761	NTQPLTQYFISGRHL	83 / 6 AA	182
Phosphosite 11:	USP6	P35125	Y559	NTQPLTQYFISGRHL	83 / 6 AA	159
Phosphosite 12:	TTBK2	Q6IQ55	Y267	DHISSLDYFTKPDYQ	71 / 7 AA	137
Phosphosite 13:	ZNF746	Q6NUN9	Y137	ETLVSLDYAISKPEV	85 / 7 AA	69
Phosphosite 14:	TTBK1	Q5TCY1	Y280	DHIASLDYFTKPDYQ	83 / 6 AA	143
Phosphosite 15:	MYO10	Q9HD67	S1425	WFVLTHNSLDYYKSS	83 / 6 AA	237
Phosphosite 16:	PLCZ1	Q86YW0	Y164	MTHPLNDYFISSSHN	83 / 6 AA	70
Phosphosite 17:	PLCZ1	Q86YW0	S167	PLNDYFISSSHNTYL	83 / 6 AA	70
Phosphosite 18:	FAM172B	A6NC97	Y219	HTAYIWDYFISKTEG	83 / 6 AA	42
Phosphosite 19:	ZNF650	Q6ZT12	Y727	ASRLDPDYFISSVFE	83 / 6 AA	84
Phosphosite 20:	TMEM67	Q5HYA8	Y894	HVHKEMDYFIKDKLL	44 / 9 AA	112