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:	S368
P-Site Sequence:	EPATERPSAGQRLSQ
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	S368	EPATERPSAGQRLSQ	100 / 9 AA	91
Phosphosite 1:	C2orf55	Q6NV74	S280	SPEERPSSGQQDVAP	75 / 8 AA	102
Phosphosite 2:	C2orf55	Q6NV74	S279	VSPEERPSSGQQDVA	75 / 8 AA	102
Phosphosite 3:	ZNF831	Q5JPB2	S1549	LLPGRPSSGQRISDS	85 / 7 AA	178
Phosphosite 4:	ZFP276	Q8N554	S107	GASMERPSAEERVLV	66 / 9 AA	67
Phosphosite 5:	TSSK6	Q9BXA6	S257	FSPSARPSAGQVARN	75 / 8 AA	30
Phosphosite 6:	ZNF831	Q5JPB2	S1548	TLLPGRPSSGQRISD	85 / 7 AA	178
Phosphosite 7:	SRP68	Q9UHB9	S45	NKENERPSAGSKANK	66 / 9 AA	71
Phosphosite 8:	SLITRK6	Q9H5Y7	S674	HHTTERPSASLYEQH	75 / 8 AA	93
Phosphosite 9:	RIMBP2	O15034	S697	SVFLERSSAGQYAAS	85 / 7 AA	116
Phosphosite 10:	RIMBP2	O15034	S696	RSVFLERSSAGQYAA	85 / 7 AA	116
Phosphosite 11:	Mos	P00540	S324	IQRCWRPSAAQRPSA	85 / 7 AA	38
Phosphosite 12:	ANKRD43	Q2M3V2	S178	AQATERPSADAAPPP	85 / 7 AA	57
Phosphosite 13:	MUC19	Q7Z5P9	S2633	VSGTTRPSSGQTEIT	75 / 8 AA	598
Phosphosite 14:	ANLN	Q9NQW6	S688	FKETERPSIKQVIVR	75 / 8 AA	124
Phosphosite 15:	AFF3	P51826	S595	TRRTERTSAGDGANC	75 / 8 AA	133
Phosphosite 16:	MFAP1	P55081	S432	RDVFERPSAKKRKTT	75 / 8 AA	52
Phosphosite 17:	AFF3	P51826	T594	PTRRTERTSAGDGAN	75 / 8 AA	133
Phosphosite 18:	INCENP	Q9NQS7	S426	ASSPETPSAGQQEAK	75 / 8 AA	105
Phosphosite 19:	LTBP4	Q8N2S1	S501	LPATSRPSAGFLPTH	85 / 7 AA	173
Phosphosite 20:	YSK4	Q56UN5	S1314	RDQHERPSALQLLKH	85 / 7 AA	151