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:	EXT1
Human P-Site:	Y616
P-Site Sequence:	TSKWTNDYSMVLTGA
UniProt:	Q16394
Intern. Prot. ID:	IPI00293128

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	EXT1	Q16394	Y616	TSKWTNDYSMVLTGA	100 / 9 AA	86
Phosphosite 1:	EXT1	Q16394	S617	SKWTNDYSMVLTGAA	100 / 8 AA	86
Phosphosite 2:	EXTL1	Q92935	S549	AERTNEFSMVLTTAA	75 / 8 AA	75
Phosphosite 3:	SIN3B	O75182	Y437	QGSWTDDYCMSKFKN	71 / 7 AA	133
Phosphosite 4:	LENG8	Q96PV6	Y17	STDWSSQYSMVAGAG	62 / 8 AA	86
Phosphosite 5:	VPS13C	Q709C8	Y3252	VITRFNEYSKVLQFK	55 / 9 AA	422
Phosphosite 6:	TESSP5	Q7RTY3	S43	IQGTKEYSVVLGTSK	62 / 8 AA	29
Phosphosite 7:	LSS	P48449	Y98	DGHWTGDYGGPLFLL	55 / 9 AA	83
Phosphosite 8:	PIGA	P37287	T465	TGPRGAWTNNYSHSK	83 / 6 AA	54
Phosphosite 9:	EXTL2	Q9UBQ6	S209	SGNGDQYSMVLIGAS	71 / 7 AA	37
Phosphosite 10:	PIGA	P37287	Y468	RGAWTNNYSHSKRGG	83 / 6 AA	54
Phosphosite 11:	EXTL2	Q9UBQ6	Y208	GSGNGDQYSMVLIGA	71 / 7 AA	37
Phosphosite 12:	ATRN	O75882	Y366	YMFNHSDYNMVLAYD	83 / 6 AA	159
Phosphosite 13:	EP400	Q96L91	Y2050	VAAQGNDYSMAFLTQ	71 / 7 AA	344
Phosphosite 14:	HAND2	P61296	Y58	PEMSPPDYSMALSYS	55 / 9 AA	24
Phosphosite 15:	EP400	Q96L91	S2051	AAQGNDYSMAFLTQR	71 / 7 AA	344
Phosphosite 16:	DKFZP451C023	Q86TD4	Y512	EDKPSDDYSAVLQRL	62 / 8 AA	101
Phosphosite 17:	DKFZP451C023	Q86TD4	S513	DKPSDDYSAVLQRLR	62 / 8 AA	101
Phosphosite 18:	HAND2	P61296	S59	EMSPPDYSMALSYSP	83 / 6 AA	24
Phosphosite 19:	MANBA	O00462	S715	SDLHSDYSMTLSVRV	71 / 7 AA	101
Phosphosite 20:	SIN3B	O75182	T434	TLLQGSWTDDYCMSK	66 / 6 AA	133