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:	S641
P-Site Sequence:	YSHYLPASLKNMVDQ
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	S641	YSHYLPASLKNMVDQ	100 / 9 AA	86
Phosphosite 1:	UBR5	O95071	S581	FQLRSPESLKNMEKA	85 / 7 AA	309
Phosphosite 2:	ZBTB8A	Q96BR9	S189	KYNYHPASQKNTQQP	66 / 9 AA	50
Phosphosite 3:	USP8	P40818	S16	KELYLSSSLKDLNKK	55 / 9 AA	128
Phosphosite 4:	ARHGEF7	Q14155	S34	PEGFLQASLKDGVVL	62 / 8 AA	90
Phosphosite 5:	FAM83D	Q9H4H8	S523	LELYLSDSLRNLNKE	55 / 9 AA	64
Phosphosite 6:	PHF3	Q92576	S44	SQNVLEDSLKNMLSD	75 / 8 AA	229
Phosphosite 7:	CD200	P41217	S48	EQLYTPASLKCSLQN	85 / 7 AA	31
Phosphosite 8:	HUWE1	Q7Z6Z7	S539	MDGSLPTSLKHIISN	62 / 8 AA	482
Phosphosite 9:	VWA3A	A6NCI4	S720	KCAFLMASLKNHSGK	75 / 8 AA	134
Phosphosite 10:	Enamelin	Q9NRM1	Y702	QPKEYLPYSLDNPSK	75 / 8 AA	129
Phosphosite 11:	ZNF699	Q32M78	S433	KAFYLPTSLNTHVKN	71 / 7 AA	74
Phosphosite 12:	Enamelin	Q9NRM1	S703	PKEYLPYSLDNPSKP	75 / 8 AA	129
Phosphosite 13:	SPSB4	Q96A44	S265	SSLPLPQSLKNYLQY	85 / 7 AA	30
Phosphosite 14:	Rdh8	Q9NYR8	S224	RDLYLPASRKLFCSV	85 / 7 AA	34
Phosphosite 15:	THADA	Q6YHU6	S90	AGIYLSLSLKNPLKK	75 / 8 AA	220
Phosphosite 16:	ECT2	Q9H8V3	S695	GQTRPPASLKHIHLM	71 / 7 AA	100
Phosphosite 17:	Cdc23	Q9UJX2	S576	APFFLPASLSANNTP	83 / 6 AA	69
Phosphosite 18:	GPA33	Q99795	S197	PASGQPVSLKNISTD	71 / 7 AA	36
Phosphosite 19:	TCP11	Q8WWU5	S391	VSQEIHQSLKNMGLV	62 / 8 AA	56
Phosphosite 20:	WDR77	Q9BQA1	S217	APGYLPTSLAWHPQQ	83 / 6 AA	37