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:	S399
P-Site Sequence:	GSENAKKSPLSWDTK
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	S399	GSENAKKSPLSWDTK	100 / 9 AA	91
Phosphosite 1:	BLVRA	P53004	S211	CLETEKKSPLSWIEE	77 / 9 AA	33
Phosphosite 2:	SETDB2	Q96T68	S318	TARNAKTSPLSSDKI	77 / 9 AA	82
Phosphosite 3:	ZNF503	Q96F45	S111	IELDAKKSPLALLAQ	66 / 9 AA	63
Phosphosite 4:	BLVRA	P53004	S214	TEKKSPLSWIEEKGP	100 / 6 AA	33
Phosphosite 5:	SETDB2	Q96T68	T317	LTARNAKTSPLSSDK	87 / 8 AA	82
Phosphosite 6:	MARCH-X	Q8NA82	S402	NAKKSPLSWDTKSEP	100 / 6 AA	91
Phosphosite 7:	CDCA2	Q69YH5	S121	NIKNARKSPLAQDSP	75 / 8 AA	113
Phosphosite 8:	KIAA1267	Q7Z3B3	S268	VKLEGKKSPLSSILF	66 / 9 AA	121
Phosphosite 9:	FAM117A	Q9C073	T123	TNDKATQTPLSWQEL	55 / 9 AA	48
Phosphosite 10:	RP11-345P4.4	P0CK96	S28	PKGRSPLSWGSLFGH	83 / 6 AA	44
Phosphosite 11:	IDUA	P35475	S234	TPPRSPLSWGLLRHC	83 / 6 AA	73
Phosphosite 12:	IDUA	P35475	S231	SFHTPPRSPLSWGLL	83 / 6 AA	73
Phosphosite 13:	RP11-345P4.4	P0CK96	S25	EEKPKGRSPLSWGSL	83 / 6 AA	44
Phosphosite 14:	NFAM1	Q8NET5	S247	SSPTAKQSPLSQERP	75 / 8 AA	30
Phosphosite 15:	GRAMD1A	Q96CP6	S560	RRRKRPLSWRAHGDG	83 / 6 AA	81
Phosphosite 16:	PDE4C	Q08493	S70	PRPELRKSRLSWPVS	71 / 7 AA	80
Phosphosite 17:	NAV1	Q8NEY1	S312	SSLSNRSSPLSWRYG	71 / 7 AA	202
Phosphosite 18:	NRK	Q7Z2Y5	T61	KVMNARKTPLPEIGR	62 / 8 AA	178
Phosphosite 19:	TCF21	O43680	S67	RKAPTKKSPLSGVSQ	85 / 7 AA	20
Phosphosite 20:	PDE4D	Q08499	S139	HRPGLKKSRMSWPSS	71 / 7 AA	91