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:	STX4
Human P-Site:	Y251
P-Site Sequence:	NILSSADYVERGQEH
UniProt:	Q12846
Intern. Prot. ID:	IPI00029730

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	STX4	Q12846	Y251	NILSSADYVERGQEH	100 / 9 AA	34
Phosphosite 1:	RC3H2	Q9HBD1	Y964	EATSSAHYVERDRFI	77 / 9 AA	132
Phosphosite 2:	STX1B	P61266	Y242	NVEHSVDYVERAVSD	75 / 8 AA	33
Phosphosite 3:	Spry3	O43610	Y27	STHASNDYVERPPAP	75 / 8 AA	31
Phosphosite 4:	PFKFB2	O60825	Y178	VKVSSPDYPERNREN	66 / 9 AA	58
Phosphosite 5:	PPP3CA	Q08209	Y119	RYLFLGDYVDRGYFS	71 / 7 AA	59
Phosphosite 6:	PPP2CA	P67775	Y86	NYLFMGDYVDRGYYS	71 / 7 AA	36
Phosphosite 7:	PPP2CB	P62714	Y86	NYLFMGDYVDRGYYS	71 / 7 AA	36
Phosphosite 8:	PPP1CB	P62140	Y92	NYLFLGDYVDRGKQS	71 / 7 AA	37
Phosphosite 9:	PPP1CA	P62136	Y93	NYLFLGDYVDRGKQS	71 / 7 AA	38
Phosphosite 10:	PPP3CC	P48454	Y115	RYLFLGDYVDRGYFS	71 / 7 AA	57
Phosphosite 11:	PPP1CC	P36873	Y93	NYLFLGDYVDRGKQS	71 / 7 AA	37
Phosphosite 12:	PPP3CB	P16298	Y128	RYLFLGDYVDRGYFS	71 / 7 AA	59
Phosphosite 13:	OCLN	Q16625	Y315	VPSPPSDYVERVDSP	62 / 8 AA	59
Phosphosite 14:	SERPINA1	P01009	Y184	AKKQINDYVEKGTQG	83 / 6 AA	47
Phosphosite 15:	SEC14L5	O43304	Y230	GDKLDADYIERCLGH	83 / 6 AA	79
Phosphosite 16:	C20orf19	Q2M2Z5	Y16	VPLSSPDYYERLGQL	75 / 8 AA	75
Phosphosite 17:	DDX17	Q92841	Y423	YPNSSEDYVHRIGRT	75 / 8 AA	72
Phosphosite 18:	STX1A	Q16623	Y243	NVEHAVDYVERAVSD	62 / 8 AA	33
Phosphosite 19:	Sin3A	Q96ST3	Y1101	EAERWSDYVERYMNS	71 / 7 AA	145
Phosphosite 20:	OVOS2	Q6IE36	Y710	CRGENADYVEQAIIQ	62 / 8 AA	156