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:	S56
P-Site Sequence:	QFWGQETSFERSRFS
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	S56	QFWGQETSFERSRFS	100 / 9 AA	91
Phosphosite 1:	SULT1C2	O00338	S229	DKIVQETSFEKMKEN	85 / 7 AA	35
Phosphosite 2:	COG6	Q9Y2V7	Y223	ALLQETAYERLYRWA	71 / 7 AA	73
Phosphosite 3:	ANXA7	P20073	S25	PPAGQESSFPPSGQY	66 / 9 AA	53
Phosphosite 4:	MRS2	Q9HD23	S99	DKQGNVTSFERKKTE	75 / 8 AA	50
Phosphosite 5:	PRC1	O43663	T194	ALDHTPDTSFERDVV	71 / 7 AA	72
Phosphosite 6:	PRC1	O43663	S195	LDHTPDTSFERDVVC	71 / 7 AA	72
Phosphosite 7:	PRTG	Q2VWP7	S1100	SSPGQTTSFSRPFGV	66 / 9 AA	127
Phosphosite 8:	PRTG	Q2VWP7	T1099	PSSPGQTTSFSRPFG	75 / 8 AA	127
Phosphosite 9:	PLEKHA2	Q9HB19	S308	KCHPRETSFSRSISL	75 / 8 AA	47
Phosphosite 10:	GPR112	Q8IZF6	S1414	VSYGQDTSFVDTTTS	83 / 6 AA	301
Phosphosite 11:	DGK-I	O75912	S814	HYQDHETSFPRALSA	55 / 9 AA	117
Phosphosite 12:	Lmr3	Q96Q04	S1051	GEPAPETSLERAPAP	55 / 9 AA	156
Phosphosite 13:	SHROOM1	Q2M3G4	T156	QRRVLRETSFQRKEL	71 / 7 AA	91
Phosphosite 14:	ANKRD12	Q6UB98	S1079	NDDLMQTSFERMLSL	83 / 6 AA	236
Phosphosite 15:	SHROOM1	Q2M3G4	S157	RRVLRETSFQRKELR	71 / 7 AA	91
Phosphosite 16:	DGK-D	Q16760	S66	MLTKQNNSFQRSKRR	62 / 8 AA	133
Phosphosite 17:	ZNF426	Q9BUY5	S223	RTSTQEKSFECSHCG	75 / 8 AA	63
Phosphosite 18:	JAM2	P57087	S272	GYFSKETSFQKSNSS	55 / 9 AA	33
Phosphosite 19:	PLEKHA2	Q9HB19	S310	HPRETSFSRSISLTR	85 / 7 AA	47
Phosphosite 20:	DGK-I	O75912	T813	VHYQDHETSFPRALS	62 / 8 AA	117