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:	EXT2
Human P-Site:	S121
P-Site Sequence:	YVDDFGVSVSNTISR
UniProt:	Q93063
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	EXT2	Q93063	S121	YVDDFGVSVSNTISR	100 / 9 AA	82
Phosphosite 1:	SLK	Q9H2G2	S177	KLADFGVSAKNTRTI	77 / 9 AA	143
Phosphosite 2:	EXT2	Q93063	S123	DDFGVSVSNTISREY	100 / 7 AA	82
Phosphosite 3:	THAP9	Q9H5L6	S681	VQRQYGVSVTKTVFH	55 / 9 AA	103
Phosphosite 4:	NOL8	Q76FK4	S741	IKTDFSLSISNSSDV	55 / 9 AA	132
Phosphosite 5:	SLC29A1	Q99808	S269	GKEESGVSVSNSQPT	66 / 9 AA	50
Phosphosite 6:	GRIP2	Q9C0E4	S956	MRHDFGFSVSDGLLE	75 / 8 AA	113
Phosphosite 7:	ATP13A5	Q4VNC0	S573	DSCKFGTSVSNIIKP	75 / 8 AA	137
Phosphosite 8:	GUK1	Q16774	S35	HSGIFGFSVSHTTRN	75 / 8 AA	22
Phosphosite 9:	SEC16A	O15027	S670	QPINFSVSLSNSHEK	55 / 9 AA	234
Phosphosite 10:	Myomesin 2	P54296	S983	DLGTYSVSVSDTDGV	62 / 8 AA	165
Phosphosite 11:	SLC29A1	Q99808	S271	EESGVSVSNSQPTNE	85 / 7 AA	50
Phosphosite 12:	AHNAK	Q09666	S4870	VKGDFDVSVPKVEGT	62 / 8 AA	629
Phosphosite 13:	RC3H2	Q9HBD1	S822	FRADFSESVSGTKFE	66 / 9 AA	132
Phosphosite 14:	FEM1C	Q96JP0	S108	SLLNHGASVNNTTLT	55 / 9 AA	69
Phosphosite 15:	NRK	Q7Z2Y5	S199	KLVDFGVSAQVSRTN	100 / 5 AA	178
Phosphosite 16:	TNIK	Q9UKE5	S175	KLVDFGVSAQLDRTV	100 / 5 AA	155
Phosphosite 17:	MINK1	Q8N4C8	S175	KLVDFGVSAQLDRTV	100 / 5 AA	150
Phosphosite 18:	MEK1	Q02750	S212	KLCDFGVSGQLIDSM	100 / 5 AA	43
Phosphosite 19:	MAP2K2	P36507	S216	KLCDFGVSGQLIDSM	100 / 5 AA	44
Phosphosite 20:	HGK	O95819	S175	KLVDFGVSAQLDRTV	100 / 5 AA	142