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:	EXTL3
Human P-Site:	S282
P-Site Sequence:	IINLSRKSDTQNLLY
UniProt:	O43909
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	EXTL3	O43909	S282	IINLSRKSDTQNLLY	100 / 9 AA	105
Phosphosite 1:	COL28A1	Q2UY09	S38	SNLLARKSDVQGSIC	66 / 9 AA	117
Phosphosite 2:	SPATS2L	Q9NUQ6	S391	QSNFSRKSSTHNKPS	66 / 9 AA	62
Phosphosite 3:	SLAIN2	Q9P270	S421	LPNLSRTSNTQVDSV	75 / 8 AA	63
Phosphosite 4:	SRPK1	Q96SB4	S26	KDKAQRKSETQHRGS	71 / 7 AA	74
Phosphosite 5:	SRPK1	Q96SB4	T28	KAQRKSETQHRGSAP	71 / 7 AA	74
Phosphosite 6:	EXTL3	O43909	S279	NHVIINLSRKSDTQN	100 / 6 AA	105
Phosphosite 7:	SNCAIP	Q9Y6H5	T37	ELCRRCDTQNEDRSV	71 / 7 AA	100
Phosphosite 8:	SEC63D1	A2PYH4	S1110	QITMQRKSETQISHS	62 / 8 AA	163
Phosphosite 9:	MED14	O60244	S77	TDLLPRKSDVERKIE	62 / 8 AA	161
Phosphosite 10:	HUNK	P57058	S393	ERYLSGKSDIQDSLC	66 / 9 AA	80
Phosphosite 11:	MAP1S	Q66K74	S918	RAPLSRKSSTPKTAT	66 / 9 AA	112
Phosphosite 12:	SPATS2L	Q9NUQ6	S392	SNFSRKSSTHNKPSE	75 / 8 AA	62
Phosphosite 13:	SEC63D1	A2PYH4	T1112	TMQRKSETQISHSKH	83 / 6 AA	163
Phosphosite 14:	UACA	Q9BZF9	T1065	ERALSRKTDELNKQL	66 / 9 AA	163
Phosphosite 15:	USP1	O94782	T275	NGKRKSDTEFGNMKK	83 / 6 AA	88
Phosphosite 16:	PYGO2	Q9BRQ0	T50	KKRRKSNTQGPAYSH	83 / 6 AA	41
Phosphosite 17:	USP1	O94782	S273	KGNGKRKSDTEFGNM	83 / 6 AA	88
Phosphosite 18:	PYGO2	Q9BRQ0	S48	PEKKRRKSNTQGPAY	83 / 6 AA	41
Phosphosite 19:	UACA	Q9BZF9	S1062	HEMERALSRKTDELN	83 / 6 AA	163
Phosphosite 20:	VRK2	Q86Y07	S228	AHKGVALSRRSDVEI	83 / 6 AA	58