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:	S244
P-Site Sequence:	QAFQGKNSPQVLSEF
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	S244	QAFQGKNSPQVLSEF	100 / 9 AA	91
Phosphosite 1:	GPR56	Q9Y653	S304	ALFQDKNSSQVLGEK	77 / 9 AA	78
Phosphosite 2:	ZFP91	Q96JP5	S110	SPVQGKKSPRLLCIE	66 / 9 AA	63
Phosphosite 3:	SPEN	Q96T58	T2938	VLTQGINTPPVLVHN	66 / 9 AA	402
Phosphosite 4:	GPR56	Q9Y653	S305	LFQDKNSSQVLGEKV	85 / 7 AA	78
Phosphosite 5:	WNK1	Q9H4A3	S407	CFPQGTTSQQVLTAS	66 / 9 AA	251
Phosphosite 6:	RAPGEF2	Q9Y4G8	S1080	LPPFGINSPQALKKI	75 / 8 AA	167
Phosphosite 7:	IVNS1ABP	Q9Y6Y0	S322	IFLHGRNSPQSSPTS	71 / 7 AA	72
Phosphosite 8:	IPPK	Q9H8X2	T309	LRCQGKNTPERSGLP	71 / 7 AA	56
Phosphosite 9:	CWH43	Q9H720	S381	LLLQTKNSSKVLFRK	66 / 9 AA	79
Phosphosite 10:	CLCC1	Q96S66	S438	RFQTGNKSPEVLRAF	62 / 8 AA	62
Phosphosite 11:	KIAA2022	Q5QGS0	S1216	EKPPGKNSRQVPKST	85 / 7 AA	168
Phosphosite 12:	MSH5	O43196	S550	GYSRPRYSPQVLGVR	71 / 7 AA	93
Phosphosite 13:	LSM14A	Q8ND56	S182	TQLSQGRSSPQLDPL	62 / 8 AA	51
Phosphosite 14:	LSM14A	Q8ND56	S183	QLSQGRSSPQLDPLR	62 / 8 AA	51
Phosphosite 15:	DEPDC2	Q70Z35	S983	SSEQGKLSPMVYIQH	75 / 8 AA	183
Phosphosite 16:	NUFIP2	Q7Z417	S572	YELEKRTSPQVLGSI	55 / 9 AA	76
Phosphosite 17:	ZNF646	O15015	S1811	GTQWRGKSSPKVGGG	62 / 8 AA	201
Phosphosite 18:	ZNF688	P0C7X2	S131	RKAPVKESPEVLVER	71 / 7 AA	31
Phosphosite 19:	TAO1	Q7L7X3	S965	SSMGVRNSPQALRRT	71 / 7 AA	116
Phosphosite 20:	PAPOLB	Q9NRJ5	S556	SSSQGRNSPALAVMT	83 / 6 AA	72