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:	ROBO4
Human P-Site:	S520
P-Site Sequence:	LKHRMDHSDSQWLAD
UniProt:	Q8WZ75
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	ROBO4	Q8WZ75	S520	LKHRMDHSDSQWLAD	100 / 9 AA	107
Phosphosite 1:	ACTN1	P12814	Y4	____MDHYDSQQTND	85 / 7 AA	103
Phosphosite 2:	ARHGEF3	Q9NR81	S489	KLEQMDQSDSESDCS	55 / 9 AA	60
Phosphosite 3:	SULT1B1	O43704	S252	PTTVMDHSKSPFMRK	62 / 8 AA	35
Phosphosite 4:	C1orf228	Q6PIY5	S339	AMGNTDHSNSQRLAS	62 / 8 AA	49
Phosphosite 5:	HERC2	O95714	S4126	RYGRLGHSDSEDQLK	62 / 8 AA	527
Phosphosite 6:	C1orf228	Q6PIY5	S341	GNTDHSNSQRLASLT	71 / 7 AA	49
Phosphosite 7:	MLH3	Q9UHC1	S812	KITTMEHSDSDSSCQ	62 / 8 AA	164
Phosphosite 8:	UTX	O15550	S1061	RSHHKDHSDSESTSS	55 / 9 AA	154
Phosphosite 9:	SULT1C3	Q6IMI6	S260	PTSIMDHSISPFMRK	62 / 8 AA	36
Phosphosite 10:	SULT1C2	O75897	S258	PAEIMDHSISPFMRK	62 / 8 AA	36
Phosphosite 11:	SULT1A2	P50226	S251	RREFMDHSISPFMRK	62 / 8 AA	34
Phosphosite 12:	SULT1A1	P50225	S251	PQEFMDHSISPFMRK	62 / 8 AA	34
Phosphosite 13:	SULT1A3	P50224	S251	PQELMDHSISPFMRK	62 / 8 AA	34
Phosphosite 14:	WDR31	Q8NA23	S356	HLLRMDHSQGLELQE	71 / 7 AA	41
Phosphosite 15:	PBRM1	Q86U86	T857	RARRMNRTDSEIYED	50 / 8 AA	193
Phosphosite 16:	ASTN1	O14525	S1079	VTDRMDHSKVETETV	100 / 5 AA	145
Phosphosite 17:	ARHGEF3	Q9NR81	T512	DCERMEQTDSSCGNS	57 / 7 AA	60
Phosphosite 18:	CYBRD1	Q53TN4	S260	SGNNMDKSDSELNSE	62 / 8 AA	32
Phosphosite 19:	PDS5B	Q9NTI5	S1182	DSSEMDHSENEDYTM	57 / 7 AA	165
Phosphosite 20:	GPATC2	Q9NW75	S115	NNNKKDHSDSDDQML	62 / 8 AA	59