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:	S501
P-Site Sequence:	TSVHSSDSEGNSGFH
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	S501	TSVHSSDSEGNSGFH	100 / 9 AA	91
Phosphosite 1:	villin	P09327	S261	KLYHVSDSEGNLVVR	87 / 8 AA	93
Phosphosite 2:	MARCH-X	Q8NA82	S499	SSTSVHSSDSEGNSG	100 / 7 AA	91
Phosphosite 3:	RSPH4A	Q5TD94	S145	TPHHTSQSEGNTFQQ	66 / 9 AA	81
Phosphosite 4:	TACC1	O75410	S57	SLSFSSDSEGNFETP	87 / 8 AA	88
Phosphosite 5:	RIZ	Q13029	S860	HKKHCSDSEGKEFKE	75 / 8 AA	189
Phosphosite 6:	RIZ	Q13029	S858	SVHKKHCSDSEGKEF	85 / 7 AA	189
Phosphosite 7:	TRPC4	Q9UBN4	S783	DSDEKSDSEGNSKDK	100 / 7 AA	112
Phosphosite 8:	CEP152	O94986	S495	AKLGIHPSDSEGELN	85 / 7 AA	189
Phosphosite 9:	CEP152	O94986	S497	LGIHPSDSEGELNIE	85 / 7 AA	189
Phosphosite 10:	FLG	P20930	S425	SGSQASDSEGHSENS	66 / 9 AA	435
Phosphosite 11:	FLG	P20930	S2047	SGSQASDSEGHSEDS	66 / 9 AA	435
Phosphosite 12:	FLG	P20930	S1074	SGSQASDSEGHSEES	66 / 9 AA	435
Phosphosite 13:	CREB3L2	Q70SY1	S214	PSSHGSDSEGSLSPN	85 / 7 AA	57
Phosphosite 14:	CREB3L2	Q70SY1	S212	TPPSSHGSDSEGSLS	85 / 7 AA	57
Phosphosite 15:	GGA3	Q9NZ52	S314	ATLTLPDSEGNSQCS	85 / 7 AA	78
Phosphosite 16:	SRRM2	Q9UQ35	S2563	SGSSSSDSEGSSLPV	87 / 8 AA	300
Phosphosite 17:	villin	P09327	S259	ALKLYHVSDSEGNLV	85 / 7 AA	93
Phosphosite 18:	CELSR1	Q9NYQ6	S2828	ASSHSSDSEDDGVGA	75 / 8 AA	329
Phosphosite 19:	NRK	Q7Z2Y5	S1362	CIDQSADSEGDYMSY	62 / 8 AA	178
Phosphosite 20:	IWS1	Q96ST2	S362	MDRKKFHSSDSEEEE	100 / 6 AA	92