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:	S649
P-Site Sequence:	FGHMPLLSSRLRLDP
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	S649	FGHMPLLSSRLRLDP	100 / 9 AA	75
Phosphosite 1:	KIAA2026	Q5HYC2	S871	SRIMPILSNRLCSSS	75 / 8 AA	134
Phosphosite 2:	R3HCC1	Q9Y3T6	S85	VLLFPPLSSRLRYLI	77 / 9 AA	53
Phosphosite 3:	R3HCC1	Q9Y3T6	S86	LLFPPLSSRLRYLIH	87 / 8 AA	53
Phosphosite 4:	TERT (Telomerase Reverse Transcriptase)	O14746	S619	ARPALLTSRLRFIPK	75 / 8 AA	127
Phosphosite 5:	TERT (Telomerase Reverse Transcriptase)	O14746	T618	EARPALLTSRLRFIP	75 / 8 AA	127
Phosphosite 6:	CXCL5	P42830	S5	___MSLLSSRAARVP	85 / 7 AA	12
Phosphosite 7:	Putative uncharacterized protein UNQ3029/PRO9830	Q6UWF6	S62	KLCPLLPSHLRSSPF	75 / 8 AA	13
Phosphosite 8:	C11orf56	Q8N612	S723	EPPGPFLSSPLRTLN	75 / 8 AA	106
Phosphosite 9:	C11orf56	Q8N612	S724	PPGPFLSSPLRTLNQ	75 / 8 AA	106
Phosphosite 10:	F2R	P25116	S21	SLCGPLLSARTRARR	75 / 8 AA	47
Phosphosite 11:	GLYCAM1	Q8IVK1	S35	PQLSVLLSNRLRGKT	85 / 7 AA	5
Phosphosite 12:	PDPR	Q8NCN5	S337	DHFEPLLSSLLRRMP	87 / 8 AA	99
Phosphosite 13:	CC2D1B	Q5T0F9	S285	DPRALLSSRQREYKV	75 / 8 AA	94
Phosphosite 14:	BCL2L10	Q9HD36	S136	QRLVALLSSRLMGQH	75 / 8 AA	22
Phosphosite 15:	FBRS	Q9HAH7	Y318	EPAHPLLYSRLAPPP	85 / 7 AA	39
Phosphosite 16:	GPR55	Q9Y2T6	S130	IRYPLLVSHLRSPRK	75 / 8 AA	37
Phosphosite 17:	TRIM7	Q9C029	S179	EAKELLESRLRVLKK	85 / 7 AA	57
Phosphosite 18:	MACF1	Q9UPN3	S3954	ETLENLSSRLRMPPL	100 / 6 AA	620
Phosphosite 19:	MACF1	Q96PK2	S4456	ETLENLSSRLRMPPL	100 / 6 AA	670
Phosphosite 20:	FOXR1	Q6PIV2	S157	HKRAPLQSRRLRQAS	75 / 8 AA	33