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:	S617
P-Site Sequence:	PNQNDNGSRMAASGF
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	S617	PNQNDNGSRMAASGF	100 / 9 AA	91
Phosphosite 1:	UAP1	Q16222	S446	HFIDENGSRLPAIPR	55 / 9 AA	59
Phosphosite 2:	FBXO9	Q9UK97	S154	IEDNDDDSKMADLLS	62 / 8 AA	52
Phosphosite 3:	ESX1L	Q8N693	S280	MAPVPPGSRMAPVPP	83 / 6 AA	44
Phosphosite 4:	RIMBP2	O15034	S237	DFVQDNESRLASTLG	62 / 8 AA	116
Phosphosite 5:	dynactin 1	Q14203	S16	YSRTPSGSRMSAEAS	71 / 7 AA	142
Phosphosite 6:	UBXN11	Q5T124	T329	EHPGSRMTAEKFLNR	83 / 6 AA	57
Phosphosite 7:	UBXN11	Q5T124	S326	RVEEHPGSRMTAEKF	83 / 6 AA	57
Phosphosite 8:	TET2	Q6N021	S305	ADDADNASKLAAMLN	62 / 8 AA	224
Phosphosite 9:	CTNNA3	Q9UI47	S743	KMISESGSRMDVLAR	57 / 7 AA	100
Phosphosite 10:	TTN	Q8WZ42	S14544	PPKNDGGSRIKGYIV	71 / 7 AA	3816
Phosphosite 11:	TTN	Q8WZ42	S26543	VPVNDGGSRVIGYHL	71 / 7 AA	3816
Phosphosite 12:	C10orf41	A6NEH8	S60	RHPARNGSRLACTPT	83 / 6 AA	21
Phosphosite 13:	ZFC3H1	O60293	S1551	DPSNDNPSRIVNTES	62 / 8 AA	226
Phosphosite 14:	ITCH	Q96J02	S208	ASQNDDGSRSKDETR	83 / 6 AA	103
Phosphosite 15:	MYO3B	Q8WXR4	S489	CTAINDNSSRFGKYL	62 / 8 AA	152
Phosphosite 16:	dynactin 1	Q14203	S19	TPSGSRMSAEASARP	83 / 6 AA	142
Phosphosite 17:	RYR1	P21817	S3476	FLTADNKSKMAKAGD	71 / 7 AA	565
Phosphosite 18:	MYH4	Q9Y623	S245	TVRNDNSSRFGKFIR	62 / 8 AA	223
Phosphosite 19:	MYO5A	Q9Y4I1	S218	TTRNDNSSRFGKYIE	62 / 8 AA	215
Phosphosite 20:	MYH15	Q9Y2K3	S255	TLRNDNSSRFGKFIR	62 / 8 AA	225