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:	S479
P-Site Sequence:	PPASFMHSALRDDIP
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	S479	PPASFMHSALRDDIP	100 / 9 AA	91
Phosphosite 1:	BTBD12	Q8IY92	S1508	SRPSFLNSALWDVWD	66 / 9 AA	200
Phosphosite 2:	USP8	P40818	S39	STKSYVHSALKIFKT	62 / 8 AA	128
Phosphosite 3:	TACC3	Q9Y6A5	S552	GTSSFKESALRKQSL	75 / 8 AA	90
Phosphosite 4:	LPLUNC4	P59827	S49	QQSDALHSALREVPL	71 / 7 AA	65
Phosphosite 5:	PLCG1	P19174	S279	QVQEFMLSFLRDPLR	75 / 8 AA	149
Phosphosite 6:	EPS15L1	Q9UBC2	S306	VKEIFMHSGLTQNLL	83 / 6 AA	94
Phosphosite 7:	ATRIP	Q8WXE1	S373	YDGSFSLSALREAQN	66 / 9 AA	86
Phosphosite 8:	TANC1	Q9C0D5	S1008	GQCALVHSALRGHGD	55 / 9 AA	202
Phosphosite 9:	ARFGEF3	Q5TH69	S1550	HIQSFLHSDIRYESM	62 / 8 AA	241
Phosphosite 10:	KRTAP25-1	Q3LHN0	S81	QPISFMHSSFQPACS	62 / 8 AA	12
Phosphosite 11:	USP31	Q70CQ4	S1231	KGLSFFKSALRQKET	66 / 9 AA	147
Phosphosite 12:	LBP	P18428	S91	HSCELLHSALRPVPG	71 / 7 AA	53
Phosphosite 13:	KIAA0423	Q9Y4F4	S971	LDQEEMHSSLRSLRN	83 / 6 AA	189
Phosphosite 14:	RBM7	Q9Y580	S149	QRQAVMNSALRQMSY	71 / 7 AA	31
Phosphosite 15:	TRAF5	O00463	S244	NLQQHEHSALREHMR	83 / 6 AA	64
Phosphosite 16:	KIAA0423	Q9Y4F4	S972	DQEEMHSSLRSLRNS	83 / 6 AA	189
Phosphosite 17:	Tiam1	Q13009	S1392	DFLKAVHSILRDKHR	71 / 7 AA	178
Phosphosite 18:	MARCH-X	Q8NA82	S475	SSYNPPASFMHSALR	100 / 5 AA	91
Phosphosite 19:	SDCCAG1	O60524	S1036	ALNSFMHSKEATARE	100 / 5 AA	123
Phosphosite 20:	PCSK1	P29120	S111	EKERSKRSALRDSAL	71 / 7 AA	84