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:	S353
P-Site Sequence:	RSEPSHGSLRISNAM
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	S353	RSEPSHGSLRISNAM	100 / 9 AA	91
Phosphosite 1:	LPLUNC1	Q8TDL5	S164	DCATSHGSLRIQLLH	100 / 7 AA	52
Phosphosite 2:	PKP4	Q99569	S236	GVSPSRGSLRTSLGS	77 / 9 AA	134
Phosphosite 3:	SALL1	Q9NSC2	T274	SSSPSQGTLRTSANP	66 / 9 AA	140
Phosphosite 4:	ASXL1	Q8IXJ9	S1146	TKDQSHGSLRMGSLH	66 / 9 AA	165
Phosphosite 5:	ENTPD6	O75354	S37	RKISNHGSLRVAKVA	55 / 9 AA	53
Phosphosite 6:	TJP1	Q07157	S337	PQQPSNGSLRSRDEE	85 / 7 AA	195
Phosphosite 7:	CDH23	Q9H251	S3265	DHSPGQGSLRFRHKP	62 / 8 AA	370
Phosphosite 8:	SYNPO	Q8N3V7	S200	GQKPSQESLRVLPSS	62 / 8 AA	99
Phosphosite 9:	PRRT3	Q5FWE3	S911	LDSFSRGSLKISWNP	75 / 8 AA	102
Phosphosite 10:	MARCH-X	Q8NA82	S350	SSRRSEPSHGSLRIS	100 / 6 AA	91
Phosphosite 11:	KNCN	A6PVL3	S75	HILPTIGSLRIHPHP	75 / 8 AA	13
Phosphosite 12:	C13orf23	Q86XN7	T632	SGNPSHGTLGLSGTL	66 / 9 AA	96
Phosphosite 13:	BRD8	Q9H0E9	S590	MLSPSHGSNPIEDPL	75 / 8 AA	135
Phosphosite 14:	EDNRA	P25101	S289	MLNRRNGSLRIALSE	71 / 7 AA	49
Phosphosite 15:	Uncharacterized protein DKFZp781G0119	Q68DL7	S587	ILGKSHGSLKLKRQP	71 / 7 AA	77
Phosphosite 16:	RNF183	Q96D59	S150	ILIPSHHSLRECFRN	66 / 9 AA	22
Phosphosite 17:	ATN1	P54259	S533	AMSPSLGSLRPYPPG	85 / 7 AA	125
Phosphosite 18:	TNPO3	Q9Y5L0	S85	LPTDSHASLRDSLLT	75 / 8 AA	104
Phosphosite 19:	UNC13A	Q9UPW8	S943	LLDQLHNSLRIDLSM	83 / 6 AA	193
Phosphosite 20:	UNC13C	Q8NB66	S1489	LLDQLHNSLRIDLSK	83 / 6 AA	251