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:	S384
P-Site Sequence:	PGLPDRESATEKDRG
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	S384	PGLPDRESATEKDRG	100 / 9 AA	91
Phosphosite 1:	ZNF705A	Q6ZN79	S82	DQNPDRESALKKKHM	77 / 9 AA	35
Phosphosite 2:	Zinc finger protein 705D	P0CH99	S82	DQNPDRESALKKKHM	77 / 9 AA
Phosphosite 3:	ZNF705H	A8MWA4	S84	DQNPDRESALKKTHM	77 / 9 AA	35
Phosphosite 4:	ZNF705F	A8MVS1	S82	DQNPDRESALKKKHM	77 / 9 AA	35
Phosphosite 5:	ABCC8	Q09428	T757	DPSPERETATDLDIR	62 / 8 AA	177
Phosphosite 6:	ZNF705G	A8MUZ8	S82	DQNPNRESALKKTHM	66 / 9 AA	35
Phosphosite 7:	MAP1B	P46821	S1389	EPVPDSESPIEKVLS	66 / 9 AA	271
Phosphosite 8:	CPAP	Q9HC77	S936	KLRIERESALEKLRK	75 / 8 AA	153
Phosphosite 9:	KIAA0913	A7E2V4	S1016	DKLLDRESQTHKPQT	75 / 8 AA	197
Phosphosite 10:	WDR43	Q15061	T656	ENGEDRDTASEKELN	62 / 8 AA	75
Phosphosite 11:	ARHGAP5	Q13017	S540	KLAPDRESLLLKHIG	66 / 9 AA	172
Phosphosite 12:	NIPBL	Q6KC79	S484	IERIERESAIERERF	62 / 8 AA	316
Phosphosite 13:	PSRC1	Q6PGN9	S98	CALQDRESAGEGLGP	75 / 8 AA	39
Phosphosite 14:	Nuclear envelope pore membrane protein POM 121	Q96HA1	S476	PLAADRESQGEKAAD	66 / 9 AA
Phosphosite 15:	FNBP4	Q8N3X1	T973	SEEDRESTAQKRIEE	62 / 8 AA	110
Phosphosite 16:	GIDRP88	Q7Z5L2	S550	VSFPDRESSSMETSI	71 / 7 AA	88
Phosphosite 17:	FNBP4	Q8N3X1	S972	SSEEDRESTAQKRIE	62 / 8 AA	110
Phosphosite 18:	PPIG	Q13427	S221	SDSSDSESATEEKSK	75 / 8 AA	89
Phosphosite 19:	LYST	Q99698	S919	EAESDRESANDSEDT	62 / 8 AA	429
Phosphosite 20:	CASKIN1	Q8WXD9	S1402	DAQGPRDSAAEKSTG	71 / 7 AA	150