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:	EXT1
Human P-Site:	S690
P-Site Sequence:	MGQTSRASRWADPDH
UniProt:	Q16394
Intern. Prot. ID:	IPI00293128

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	EXT1	Q16394	S690	MGQTSRASRWADPDH	100 / 9 AA	86
Phosphosite 1:	RIN3	Q8TB24	S273	SDATSPTSRWAPRRP	75 / 8 AA	108
Phosphosite 2:	RIN3	Q8TB24	T272	TSDATSPTSRWAPRR	75 / 8 AA	108
Phosphosite 3:	KLHL36	Q8N4N3	Y23	ISESSKVYRWADHSS	55 / 9 AA	70
Phosphosite 4:	PKCd	Q05655	S299	NQVTQRASRRSDSAS	66 / 9 AA	78
Phosphosite 5:	HEG1	Q9ULI3	S7	_MASPRASRWPPPLL	62 / 8 AA	135
Phosphosite 6:	VN1R4	Q7Z5H5	S114	ITVSSRKSRWAKLKE	66 / 9 AA	34
Phosphosite 7:	RP1L1	Q8IWN7	S2384	GPSSSRASSWGNCWQ	55 / 9 AA	261
Phosphosite 8:	RP1L1	Q8IWN7	S2385	PSSSRASSWGNCWQK	62 / 8 AA	261
Phosphosite 9:	GNAS	P84996	T613	SSTNNSRTKRWATCV	71 / 7 AA	68
Phosphosite 10:	TRPC4	Q9UBN4	Y315	QLLASRWYDEFPGWR	83 / 6 AA	112
Phosphosite 11:	C19orf43	Q9BQ61	S26	AGGGGGGSRWAESGS	66 / 6 AA	18
Phosphosite 12:	PHF15	Q9NQC1	S305	KISHIPASRWALSCS	100 / 5 AA	87
Phosphosite 13:	FBXW9	Q5XUX1	S154	IALEQHLSRWAEDGR	80 / 5 AA	54
Phosphosite 14:	MDC1	Q14676	T1638	PKLTSRATRRKTNRS	71 / 7 AA	227
Phosphosite 15:	FLG	P20930	S2215	SHHHEASSWADSSRH	83 / 6 AA	435
Phosphosite 16:	FLG	P20930	S2214	GSHHHEASSWADSSR	83 / 6 AA	435
Phosphosite 17:	ATP6V1A	P38606	S352	SMMADSTSRWAEALR	66 / 6 AA	68
Phosphosite 18:	DAPK2	Q9UIK4	S62	KKRQSRASRRGVSRE	71 / 7 AA	43