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:	S152
P-Site Sequence:	RFTVSPESHSPRASG
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	S152	RFTVSPESHSPRASG	100 / 9 AA	91
Phosphosite 1:	ACBD4	Q8NC06	S169	PAPPSPESHSPRDLD	100 / 8 AA	30
Phosphosite 2:	ACBD4	Q8NC06	S171	PPSPESHSPRDLDSE	100 / 7 AA	30
Phosphosite 3:	MARCH-X	Q8NA82	S154	TVSPESHSPRASGDR	100 / 7 AA	91
Phosphosite 4:	MVD	P53602	S190	ARQVAPESHWPELRV	75 / 8 AA	43
Phosphosite 5:	ALX1	Q15699	S253	SSCMTPYSHSPRTDS	66 / 9 AA	37
Phosphosite 6:	KCNK17	Q96T54	S302	DREPESHSPQQGCYP	85 / 7 AA	37
Phosphosite 7:	MARCH-X	Q8NA82	S149	NLRRFTVSPESHSPR	100 / 6 AA	91
Phosphosite 8:	PRMT5	O14744	T571	TLSIRPETHSPGMFS	62 / 8 AA	73
Phosphosite 9:	KCNK17	Q96T54	S300	GPDREPESHSPQQGC	85 / 7 AA	37
Phosphosite 10:	MEKK2	Q9Y2U5	S347	VMDISPPSRSPRAPT	66 / 9 AA	70
Phosphosite 11:	ACAD10	Q6JQN1	S658	GLVISPESLSPPVRE	75 / 8 AA	119
Phosphosite 12:	ALX1	Q15699	S255	CMTPYSHSPRTDSSY	85 / 7 AA	37
Phosphosite 13:	SAMD4	Q9UPU9	S445	PSLMGPESQSPDCKD	62 / 8 AA	59
Phosphosite 14:	GTF3C1	Q12789	S1854	PEGQAPPSHSPRGTK	75 / 8 AA	239
Phosphosite 15:	GTF3C1	Q12789	S1856	GQAPPSHSPRGTKRR	85 / 7 AA	239
Phosphosite 16:	OTOP1	Q7RTM1	S41	SAPRSPESPAPRRGG	75 / 8 AA	67
Phosphosite 17:	ZIK1	Q3SY52	S15	APTQVTVSPETHMDL	83 / 6 AA	55
Phosphosite 18:	RBM15	Q96T37	S659	HLDRSPESDRPRKRH	75 / 8 AA	107
Phosphosite 19:	PAK6	Q9NQU5	S165	MPWPEPQSPRVLPNG	71 / 7 AA	75
Phosphosite 20:	GTF3C2	Q8WUA4	S165	KDLDRPESQSPKRPP	71 / 7 AA	101