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:	S907
P-Site Sequence:	IIRSASRSDGCQMPK
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	S907	IIRSASRSDGCQMPK	100 / 9 AA	121
Phosphosite 1:	IKZF4	Q9H2S9	S450	TDPGASPSNGCQDST	75 / 8 AA	64
Phosphosite 2:	SHEP1	Q8N5H7	S374	TADKVTRSDGCPTST	62 / 8 AA	94
Phosphosite 3:	USP53	Q70EK8	S905	ECIIRSASRSDGCQM	100 / 7 AA	121
Phosphosite 4:	CCDC136	Q96JN2	S824	SYGSTSSSDTCQKSF	66 / 9 AA	134
Phosphosite 5:	ERAL1	O75616	S61	GPRLASASRSNGQGS	85 / 7 AA	48
Phosphosite 6:	MMP2	P08253	S369	SCTSAGRSDGKMWCA	85 / 7 AA	74
Phosphosite 7:	TINAG	Q9UJW2	S324	NNGCAMASRSDGRGK	100 / 6 AA	55
Phosphosite 8:	ERAL1	O75616	S63	RLASASRSNGQGSAL	85 / 7 AA	48
Phosphosite 9:	RGR	P47804	S85	LRRWPYGSDGCQAHG	100 / 5 AA	32
Phosphosite 10:	REXO1L1	Q8IX06	S287	KKPIILRSSGCQVPT	83 / 6 AA	74
Phosphosite 11:	REXO1L2P	A0PJM3	S195	KKPIILRSSGCQVPT	83 / 6 AA	64
Phosphosite 12:	TINAG	Q9UJW2	S326	GCAMASRSDGRGKRH	100 / 6 AA	55
Phosphosite 13:	RFC4	P35249	S134	AQLTVSGSRSDGKPC	85 / 7 AA	40
Phosphosite 14:	RFC4	P35249	S136	LTVSGSRSDGKPCPP	85 / 7 AA	40
Phosphosite 15:	TRIM64C	A6NLI5	T252	GNISASRTDLAQMPK	66 / 9 AA	51
Phosphosite 16:	PSG11	Q9UQ72	S228	NSGSASRSDPVTLNL	100 / 6 AA	37
Phosphosite 17:	PSG3	Q16557	S228	NPVSASRSDPVTLNL	100 / 6 AA	48
Phosphosite 18:	PSG7	Q13046	S228	NPVSASRSDPVTLNL	100 / 6 AA	47
Phosphosite 19:	PSG6	Q00889	S227	NPVSASRSDPVTLNL	100 / 6 AA	49
Phosphosite 20:	PSG4	Q00888	S228	NPVSASRSDPVTLNL	100 / 6 AA	47