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-IX
Human P-Site:	S297
P-Site Sequence:	GPTSGATSRPPAAQR
UniProt:	Q86YJ5
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	MARCH-IX	Q86YJ5	S297	GPTSGATSRPPAAQR	100 / 9 AA	38
Phosphosite 1:	ROBO3	Q96MS0	S948	EGLSGASSRPPMGLG	87 / 8 AA	148
Phosphosite 2:	ROBO3	Q96MS0	S947	SEGLSGASSRPPMGL	87 / 8 AA	148
Phosphosite 3:	ZNF469	Q96JG9	S234	YQASGADSWPPAAEN	77 / 9 AA	259
Phosphosite 4:	TMEM16H	Q9HCE9	T1005	AAAGAGATTRPPPAQ	75 / 8 AA	136
Phosphosite 5:	FMR1	Q06787	S447	QLRQIGASSRPPPNR	85 / 7 AA	71
Phosphosite 6:	RALY	Q9UKM9	S253	GGGGGGSSRPPAPQE	75 / 8 AA	32
Phosphosite 7:	KIF22	Q14807	T36	RLSKIGATRRPPPAR	85 / 7 AA	73
Phosphosite 8:	PEX6	Q13608	S173	LCPESGDSSRPPPPP	75 / 8 AA	104
Phosphosite 9:	MAGEL2	Q9UJ55	T523	GDSAHGPTSRPPPR_	85 / 7 AA	59
Phosphosite 10:	MAGEL2	Q9UJ55	S524	DSAHGPTSRPPPR__	75 / 8 AA	59
Phosphosite 11:	LPHN1	O94910	T1371	CTAEDGATSRPLSSP	100 / 6 AA	163
Phosphosite 12:	FMR1	Q06787	S448	LRQIGASSRPPPNRT	85 / 7 AA	71
Phosphosite 13:	SOX30	O94993	T120	PTASDGATSRPELHP	100 / 6 AA	82
Phosphosite 14:	LPHN1	O94910	S1372	TAEDGATSRPLSSPP	100 / 6 AA	163
Phosphosite 15:	LPHN1	O94910	S1426	PPEIYYTSRPPALVA	100 / 6 AA	163
Phosphosite 16:	INTS2	Q9H0H0	S417	QLLQLMTSRPPATPA	100 / 6 AA	134
Phosphosite 17:	NIPAL4	Q0D2K0	S38	ASHAGDKSRPPAPEL	75 / 8 AA	50
Phosphosite 18:	PEX6	Q13608	S174	CPESGDSSRPPPPPV	75 / 8 AA	104
Phosphosite 19:	PHF23	Q9BUL5	S158	PTSLTHTSRPPAALT	100 / 6 AA	44
Phosphosite 20:	BSN	Q9UPA5	S3773	QIPSGAASRQPQTQQ	75 / 8 AA	416