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:	USP53
Human P-Site:	S703
P-Site Sequence:	NGSTNLDSPVIDGNG
UniProt:	Q70EK8
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	USP53	Q70EK8	S703	NGSTNLDSPVIDGNG	100 / 9 AA	121
Phosphosite 1:	XRN1	Q8IZH2	S539	HLMTNEDSPIIEYYP	66 / 9 AA	194
Phosphosite 2:	DPEP1	P16444	S30	AERIMRDSPVIDGHN	100 / 6 AA	46
Phosphosite 3:	E2F8	A0AVK6	Y785	QQGRATNYDSPVPGQ	85 / 7 AA	94
Phosphosite 4:	MACF1	Q9UPN3	S4074	DIVHDLESPGIDPSI	62 / 8 AA	620
Phosphosite 5:	MACF1	Q96PK2	S4576	DIVHDLESPGIDPSI	62 / 8 AA	670
Phosphosite 6:	AFTPH	Q6ULP2	S395	RKFTNFQSPNIDPTE	66 / 9 AA	102
Phosphosite 7:	E2F8	A0AVK6	S787	GRATNYDSPVPGQSQ	85 / 7 AA	94
Phosphosite 8:	FER1L5	A0AVI2	S1472	QEQPKLDSPVVGEFK	62 / 8 AA	242
Phosphosite 9:	C5	P01031	S870	EGICTSESPVIDHQG	83 / 6 AA	188
Phosphosite 10:	SBNO1	A3KN83	S1058	KSIVNLDSPMVSPPP	71 / 7 AA	154
Phosphosite 11:	LIN9	Q5TKA1	S309	HYTPPLQSPIIDNDP	71 / 7 AA	62
Phosphosite 12:	CXorf31	Q5VT33	S55	TLNTFLDSPVHVLLV	85 / 7 AA	10
Phosphosite 13:	A1BG	P04217	S74	QEPVHLDSPAIKHQF	71 / 7 AA	54
Phosphosite 14:	RGL1	Q9NZL6	S391	SKFANLDSSVKENQK	55 / 9 AA	87
Phosphosite 15:	ANKRD13A	Q8IZ07	S229	EVERRLTSPVINTSL	71 / 7 AA	68
Phosphosite 16:	MTF2	Q9Y483	S141	HTPHIDSSVIDSDEK	62 / 8 AA	67
Phosphosite 17:	GNAS	P84996	S61	LHWSSLDSPVGSMQA	71 / 7 AA	68
Phosphosite 18:	ANKRD11	Q6UB99	S860	KGEDSWDSPVTDYRD	62 / 8 AA	298
Phosphosite 19:	HEATR1	Q9H583	S929	SLLINLGSPVKEVRR	62 / 8 AA	242
Phosphosite 20:	ZBTB2	Q8N680	S326	ELQHISDSPIIDGQQ	83 / 6 AA	57