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:	T621
P-Site Sequence:	NDYSMVLTGAAIYHK
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	T621	NDYSMVLTGAAIYHK	100 / 9 AA	86
Phosphosite 1:	EXTL1	Q92935	T553	NEFSMVLTTAAFYHR	77 / 9 AA	75
Phosphosite 2:	SND1	Q7KZF4	S29	GIIKMVLSGCAIIVR	75 / 8 AA	102
Phosphosite 3:	VNN3	Q9NY84	T276	HNTSMHMTGSGIYAP	55 / 9 AA	56
Phosphosite 4:	MTIF2	P46199	T59	PWPTDVLTGAALSQY	85 / 7 AA	81
Phosphosite 5:	HLTF	Q14527	T585	SERRWVLTGTPIQNS	71 / 7 AA	114
Phosphosite 6:	HLTF	Q14527	T587	RRWVLTGTPIQNSLK	71 / 7 AA	114
Phosphosite 7:	ZFX	P17010	T135	SMPEHVLTGDSIHVS	71 / 7 AA	91
Phosphosite 8:	ZNF221	Q9UK13	T333	NRHSMVHTGEKPFRC	71 / 7 AA	71
Phosphosite 9:	ZNF155	Q12901	T311	KSHSMVHTGEKPFRC	71 / 7 AA	62
Phosphosite 10:	OLFML2B	Q68BL8	T26	WVSSIVLTGTSEPPD	62 / 8 AA	84
Phosphosite 11:	CHST11	Q9NPF2	T139	KRLMMVLTGRGKYSD	100 / 5 AA	42
Phosphosite 12:	HSPA2	P54652	S122	FFPEEISSMVLTKMK	100 / 5 AA	70
Phosphosite 13:	HSPA1L	P34931	S123	FYPEEISSMVLTKLK	100 / 5 AA	70
Phosphosite 14:	POLR2A	P24928	S772	NFKSMVVSGAKGSKI	71 / 7 AA	217
Phosphosite 15:	HSPA1A	P08107	S121	FYPEEISSMVLTKMK	100 / 5 AA	70
Phosphosite 16:	EXT1	Q16394	S617	SKWTNDYSMVLTGAA	100 / 5 AA	86
Phosphosite 17:	EXTL1	Q92935	S549	AERTNEFSMVLTTAA	100 / 5 AA	75
Phosphosite 18:	HSPA8	P11142	S121	FYPEEVSSMVLTKMK	100 / 5 AA	71
Phosphosite 19:	HSPA1L	P34931	T127	EISSMVLTKLKETAE	100 / 5 AA	70
Phosphosite 20:	ZNF532	Q9HCE3	T165	SFRSNVLTGSAPQQD	75 / 8 AA	142