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:	S664
P-Site Sequence:	VLFKDPVSVQRKKYR
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	S664	VLFKDPVSVQRKKYR	100 / 9 AA	75
Phosphosite 1:	EXT1	Q16394	S734	VLFKDQVSILRKKYR	66 / 9 AA	86
Phosphosite 2:	IARS	P41252	S792	KVLIDPVSVQDKDTL	87 / 8 AA	144
Phosphosite 3:	ARHGAP22	Q7Z5H3	S485	DRLKDSGSVQRLSTY	75 / 8 AA	77
Phosphosite 4:	ABCC3	O15438	S615	QEELDPQSVERKTIS	75 / 8 AA	169
Phosphosite 5:	EIF3B	P55884	S328	NDVKDPVSIEERARW	71 / 7 AA	92
Phosphosite 6:	ARHGEF10	O15013	S1315	DLLKDPVSLRSKARR	66 / 9 AA	152
Phosphosite 7:	NES	P48681	S1506	EEESDPVSLEREDKV	71 / 7 AA	177
Phosphosite 8:	USP24	Q9UPU5	S864	RLKKDSVSLHKKFIA	55 / 9 AA	294
Phosphosite 9:	TTN	Q8WZ42	S10665	TLEEEAVSVQREEEY	71 / 7 AA	3816
Phosphosite 10:	CLIP1	P30622	S869	EASEEAVSVQRSMQE	71 / 7 AA	162
Phosphosite 11:	LASP1	Q14847	S194	KEPAAPVSIQRSAPG	71 / 7 AA	30
Phosphosite 12:	TNFRSF14	Q92956	S240	DVVKVIVSVQRKRQE	77 / 9 AA	30
Phosphosite 13:	TTC19	Q6DKK2	S477	KLKKDEISVQHIREE	62 / 8 AA	56
Phosphosite 14:	C22orf30	Q5THK1	S739	TLNIKPVSLERKKEM	71 / 7 AA	237
Phosphosite 15:	PTBP1	P26599	S233	LQYADPVSAQHAKLS	71 / 7 AA	57
Phosphosite 16:	SLA2	Q9H6Q3	T209	KDIPLPVTVQRTPLN	71 / 7 AA	29
Phosphosite 17:	FAM9C	Q8IZT9	S26	LAGKDPVSHEHEERK	62 / 8 AA	19
Phosphosite 18:	SPTBN4	Q9NRC6	S2398	DCGKDLESVQRLLRK	75 / 8 AA	417
Phosphosite 19:	WBP11	Q9Y2W2	S622	SGPSVPVSVQTKDDV	85 / 7 AA	70
Phosphosite 20:	FGF11	Q92914	S25	PGGSRPVSAQRRVCP	71 / 7 AA	25