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:	USP4
Human P-Site:	S258
P-Site Sequence:	PYSSVSASLIANGDS
UniProt:	Q13107
Intern. Prot. ID:	IPI00011836

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	USP4	Q13107	S258	PYSSVSASLIANGDS	100 / 9 AA	109
Phosphosite 1:	RTL1	A6NKG5	S466	PVQSVDGSLIGNEPV	66 / 9 AA	155
Phosphosite 2:	DPS1	Q5T2R2	S269	KTFKKTASLIANSCK	85 / 7 AA	46
Phosphosite 3:	PIP5K	Q9Y2I7	S1489	QLQSVFESLIAKKQS	66 / 9 AA	237
Phosphosite 4:	ERK5	Q13164	S776	DSASLSASLLADWLE	66 / 9 AA	88
Phosphosite 5:	DLEC1	Q9Y238	S116	IGDEVSASLIKARGS	100 / 6 AA	196
Phosphosite 6:	DCP1A	Q9NPI6	S367	VPELSHASLIANQSP	100 / 6 AA	63
Phosphosite 7:	ZNF354B	Q96LW1	S396	RAFSQSASLIQHERI	66 / 9 AA	71
Phosphosite 8:	ZNF551	Q7Z340	S573	KSFSQSASLIQHQRV	66 / 9 AA	78
Phosphosite 9:	ZNF354A	O60765	S396	RAFSQSASLIQHERI	66 / 9 AA	69
Phosphosite 10:	MYNN	Q9NPC7	S457	KAFAVSSSLITHSRK	62 / 8 AA	69
Phosphosite 11:	ZSCAN2	Q7Z7L9	S459	KSFSQSSSLIAHQGM	66 / 9 AA	70
Phosphosite 12:	LIG4	P49917	S794	QTPEEMASLIADLEY	83 / 6 AA	104
Phosphosite 13:	PHC3	Q8NDX5	S647	LPAVASVSASVIKSP	85 / 7 AA	106
Phosphosite 14:	PHC3	Q8NDX5	S649	AVASVSASVIKSPSD	85 / 7 AA	106
Phosphosite 15:	KIAA1328	Q86T90	S238	VQDSASESLIAFRNN	75 / 8 AA	65
Phosphosite 16:	ZNF189	O75820	T218	KTFSVSSTLIRHQRI	55 / 9 AA	73
Phosphosite 17:	ENOSF1	Q7L5Y1	S379	DYISVSASLENRVCE	100 / 6 AA	50
Phosphosite 18:	ZNF836	Q6ZNA1	S232	KAFRVSSSLINHQMV	62 / 8 AA	108
Phosphosite 19:	LOC284371	Q6ZN19	S159	KAFRVSSSLINHQMI	62 / 8 AA	93
Phosphosite 20:	ZNF354B	Q96LW1	S564	KTFRQSSSLIAHQRI	71 / 7 AA	71