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:	S154
P-Site Sequence:	TVSPESHSPRASGDR
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	S154	TVSPESHSPRASGDR	100 / 9 AA	91
Phosphosite 1:	ACBD4	Q8NC06	S171	PPSPESHSPRDLDSE	100 / 7 AA	30
Phosphosite 2:	MARCH-X	Q8NA82	S152	RFTVSPESHSPRASG	100 / 7 AA	91
Phosphosite 3:	ACBD4	Q8NC06	S169	PAPPSPESHSPRDLD	100 / 7 AA	30
Phosphosite 4:	SPEN	Q96T58	S1392	DGEHKSHSPRASALY	100 / 7 AA	402
Phosphosite 5:	TENC1	Q63HR2	S825	YPSPGAHSPRAGSIS	66 / 9 AA	153
Phosphosite 6:	KCNK17	Q96T54	S302	DREPESHSPQQGCYP	85 / 7 AA	37
Phosphosite 7:	NRG2	O14511	S828	YYSLDSHSTRASSRH	75 / 8 AA	92
Phosphosite 8:	NRG2	O14511	T829	YSLDSHSTRASSRHS	75 / 8 AA	92
Phosphosite 9:	ALX1	Q15699	S255	CMTPYSHSPRTDSSY	75 / 8 AA	37
Phosphosite 10:	KCNK17	Q96T54	S300	GPDREPESHSPQQGC	85 / 7 AA	37
Phosphosite 11:	GTF3C1	Q12789	S1856	GQAPPSHSPRGTKRR	66 / 9 AA	239
Phosphosite 12:	MED14	O60244	S1144	PVPDASHSPRAGTSS	85 / 7 AA	161
Phosphosite 13:	ALX1	Q15699	S253	SSCMTPYSHSPRTDS	85 / 7 AA	37
Phosphosite 14:	PAK6	Q9NQU5	S165	MPWPEPQSPRVLPNG	62 / 8 AA	75
Phosphosite 15:	CACNA1G	O43497	S2318	ITIDPPESQGPRTPP	71 / 7 AA	262
Phosphosite 16:	SPEN	Q96T58	S3025	AAKLDAHSPRPSGPG	62 / 8 AA	402
Phosphosite 17:	HAX1	O00165	S135	SMLKYPDSHQPRIFG	71 / 7 AA	32
Phosphosite 18:	C20orf132	Q9H579	S64	HCEPLSHSPRHLTQQ	85 / 7 AA	55
Phosphosite 19:	GTF3C1	Q12789	S1854	PEGQAPPSHSPRGTK	85 / 7 AA	239
Phosphosite 20:	ZNF296	Q8WUU4	S218	GPAAEAKSPRASGSG	66 / 9 AA	51