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:	Y443
P-Site Sequence:	SEGYWKDYLNSSQNS
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	Y443	SEGYWKDYLNSSQNS	100 / 9 AA	91
Phosphosite 1:	ARL11	Q969Q4	Y77	LRASWKDYLEGTDIL	62 / 8 AA	21
Phosphosite 2:	Tripartite motif-containing protein 49C (Tripartite motif-containing protein 49-like protein 2)	P0CI26	Y171	RTRCWKDYVNLRLEA	71 / 7 AA
Phosphosite 3:	TRIM49B	A6NDI0	Y171	RTRCWKDYVNLRLEA	71 / 7 AA	53
Phosphosite 4:	NANOS2	P60321	Y12	PFDMWKDYFNLSQVV	75 / 8 AA	15
Phosphosite 5:	DUSP11	O75319	Y38	IPERWKDYLPVGQRM	100 / 5 AA	39
Phosphosite 6:	THG1L	Q9NWX6	Y144	YVFYWRDYFEDQPLL	57 / 7 AA	35
Phosphosite 7:	ZFHX3	Q15911	Y244	RHKSNKDYLNSDGSA	100 / 6 AA	404
Phosphosite 8:	DNAH9	Q9NYC9	Y883	TSNIWKTYVNSIDNL	71 / 7 AA	512
Phosphosite 9:	CCDC45	Q96GE4	Y282	PCPIGKEYLHSSHCS	71 / 7 AA	95
Phosphosite 10:	SULF2	Q8IWU5	S188	EKHGSDYSKDYLTDL	83 / 6 AA	100
Phosphosite 11:	SPRYD5	Q9BSJ1	Y12	RTRCWKDYVSLRIEA	57 / 7 AA	34
Phosphosite 12:	Loc399937	A6NDQ2	Y171	RTRCWKDYVSLRTEA	57 / 7 AA	54
Phosphosite 13:	PRPF39	Q86UA1	Y359	QLKNWKEYLEFEIEN	66 / 6 AA	78
Phosphosite 14:	FGL1	Q08830	Y140	FNRGWKDYENGFGNF	71 / 7 AA	36
Phosphosite 15:	SULF2	Q8IWU5	Y191	GSDYSKDYLTDLITN	71 / 7 AA	100
Phosphosite 16:	Tripartite motif-containing protein LOC642612	Q3C1W6	Y171	RISHWKDYVSVRKRI	57 / 7 AA	53
Phosphosite 17:	Putative UPF0607 protein ENSP00000383144	A8MX80	Y210	LKVLGKDYLPSSPGL	85 / 7 AA	38
Phosphosite 18:	SAR1B	Q9Y6B6	Y89	ARRVWKNYLPAINGI	80 / 5 AA	22
Phosphosite 19:	THG1L	Q9NWX6	Y140	FASSYVFYWRDYFED	80 / 5 AA	35
Phosphosite 20:	SAR1A	Q9NR31	Y89	ARRVWKNYLPAINGI	80 / 5 AA	22