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:	EXTL1
Human P-Site:	T241
P-Site Sequence:	GGWRTADTGSSACPW
UniProt:	Q92935
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	EXTL1	Q92935	T241	GGWRTADTGSSACPW	100 / 9 AA	75
Phosphosite 1:	EXTL1	Q92935	T238	EERGGWRTADTGSSA	100 / 6 AA	75
Phosphosite 2:	G2	Q6ZVL6	T630	PKKWTADTVSSKVQP	75 / 8 AA	199
Phosphosite 3:	SPEG	Q15772	T863	QNRRSSDTGSKAPPT	66 / 9 AA	354
Phosphosite 4:	FYCO1	Q9BQS8	T185	FARRTLTTGSSAYLW	77 / 9 AA	167
Phosphosite 5:	MCTP1	Q6DN14	T53	PERRTADTPSPSPPP	75 / 8 AA	112
Phosphosite 6:	CBX5	P45973	S11	KTKRTADSSSSEDEE	75 / 8 AA	22
Phosphosite 7:	CUX2	O14529	T583	PRIRTPETGSDDAIK	71 / 7 AA	154
Phosphosite 8:	Kv4.3	Q9UK17	T435	ARIRVAKTGSSNAYL	75 / 8 AA	73
Phosphosite 9:	ATG9A	Q7Z3C6	S684	VDARTASSGSSVWEG	66 / 9 AA	94
Phosphosite 10:	KIF21A	Q7Z4S6	T862	SDAPAQDTGSSAAAV	100 / 6 AA	187
Phosphosite 11:	KIF21A	Q7Z4S6	S865	PAQDTGSSAAAVETD	100 / 6 AA	187
Phosphosite 12:	KIF21A	Q7Z4S6	S864	APAQDTGSSAAAVET	100 / 6 AA	187
Phosphosite 13:	FAM175A	Q6UWZ7	T374	DKRSKADTGSSNQDK	100 / 6 AA	47
Phosphosite 14:	FAM175A	Q6UWZ7	S376	RSKADTGSSNQDKAS	100 / 6 AA	47
Phosphosite 15:	ATG9A	Q7Z3C6	S683	GVDARTASSGSSVWE	75 / 8 AA	94
Phosphosite 16:	PDIA3	P30101	S40	DNFESRISDTGSAGL	71 / 7 AA	57
Phosphosite 17:	MED12	Q93074	T1396	VFQQSAETGSSSGST	62 / 8 AA	243
Phosphosite 18:	SPEG	Q15772	S861	PSQNRRSSDTGSKAP	71 / 7 AA	354
Phosphosite 19:	KIAA1957	Q8TF44	S221	GESDTGSSAESSPFG	100 / 6 AA	45
Phosphosite 20:	KIAA1957	Q8TF44	S220	GGESDTGSSAESSPF	100 / 6 AA	45