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:	Y468
P-Site Sequence:	YLGDFPYYYANLGLK
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	Y468	YLGDFPYYYANLGLK	100 / 9 AA	86
Phosphosite 1:	EXT1	Q16394	Y467	SYLGDFPYYYANLGL	100 / 8 AA	86
Phosphosite 2:	EXT1	Q16394	Y469	LGDFPYYYANLGLKP	100 / 8 AA	86
Phosphosite 3:	EXTL1	Q92935	Y407	SPQDFPFYYLQQGSR	83 / 6 AA	75
Phosphosite 4:	XKR3	Q5GH77	Y422	NQPEAPYYYVNIEKT	55 / 9 AA	53
Phosphosite 5:	PRPF8	Q6P2Q9	Y320	KIAFPYLYNNLPHHV	75 / 8 AA	274
Phosphosite 6:	ENTPD7	Q9NQZ7	Y497	GFHFPYDYPNLRTAQ	75 / 8 AA	69
Phosphosite 7:	XKR3	Q5GH77	Y423	QPEAPYYYVNIEKTE	71 / 7 AA	53
Phosphosite 8:	AQR	O60306	Y1198	SEPNPYFYQNLGEAE	71 / 7 AA	171
Phosphosite 9:	XKR3	Q5GH77	Y421	ENQPEAPYYYVNIEK	62 / 8 AA	53
Phosphosite 10:	FOXG1	P55316	Y218	IMKNFPYYRENKQGW	62 / 8 AA	52
Phosphosite 11:	FOXG1	P55316	Y217	FIMKNFPYYRENKQG	62 / 8 AA	52
Phosphosite 12:	EDC4	Q6P2E9	Y133	YDWEQKYYYGNLIAV	83 / 6 AA	152
Phosphosite 13:	CLCN1	P35523	Y262	GVYEQPYYYSDILTV	57 / 7 AA	109
Phosphosite 14:	AMICA1	Q86YT9	Y74	DEYVLYYYSNLSVPI	83 / 6 AA	44
Phosphosite 15:	SLC6A7	Q99884	Y418	VTDEFPYYLRPKKAV	80 / 5 AA	71
Phosphosite 16:	ZBTB5	O15062	Y534	GGASNFPYYRRIAPK	80 / 5 AA	74
Phosphosite 17:	ZBTB5	O15062	Y535	GASNFPYYRRIAPKM	80 / 5 AA	74
Phosphosite 18:	TUBGCP3	Q96CW5	Y131	RDAHSTPYYYARPQT	100 / 5 AA	104
Phosphosite 19:	FOXJ3	Q9UPW0	Y115	ICDNFPYYREAGSGW	80 / 5 AA	69
Phosphosite 20:	AMICA1	Q86YT9	Y73	KDEYVLYYYSNLSVP	83 / 6 AA	44