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:	S626
P-Site Sequence:	SSKDPSFSNWPKENP
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	S626	SSKDPSFSNWPKENP	100 / 9 AA	121
Phosphosite 1:	USP53	Q70EK8	S624	PKSSKDPSFSNWPKE	100 / 7 AA	121
Phosphosite 2:	CHD6	Q8TD26	S2089	EKTLYSFSEWPKDRV	85 / 7 AA	305
Phosphosite 3:	RGNEF	Q8N1W1	S838	WSLVVDPSFCNRQEK	71 / 7 AA	192
Phosphosite 4:	USP48	Q86UV5	S733	DKNRPCLSNWPEDTD	71 / 7 AA	119
Phosphosite 5:	MPP2	Q14168	S153	PGLDPTFSNQPVPPD	75 / 8 AA	65
Phosphosite 6:	GYPC	P04921	S42	AEPDPGMSGWPDGRM	62 / 8 AA	14
Phosphosite 7:	PTPN22	Q9Y2R2	S538	LVENPYFSSWPPSGT	62 / 8 AA	92
Phosphosite 8:	COL28A1	Q2UY09	S109	VQIDPPFSSWKDLQT	71 / 7 AA	117
Phosphosite 9:	ERVK6	Q9WJR5	S65	EKGHIEPSFSPWNSP	71 / 7 AA	108
Phosphosite 10:	Endogenous retrovirus group K member 11 Pol protein	Q9UQG0	S65	EKGHIEPSFSPWNSP	71 / 7 AA	110
Phosphosite 11:	HERV-K_1q23.3 provirus ancestral Pol protein	Q9QC07	S65	EKGHIEPSFSPWNSP	71 / 7 AA	92
Phosphosite 12:	ERVK6	Q9BXR3	S65	EKGHIEPSFSPWNSP	71 / 7 AA	108
Phosphosite 13:	HERV-K_11q22.1 provirus ancestral Pol protein	P63136	S65	EKGHIEPSFSPWNSP	71 / 7 AA	107
Phosphosite 14:	HERV-K_1q22 provirus ancestral Pol protein	P63135	S65	EKGHIEPSFSPWNSP	71 / 7 AA	165
Phosphosite 15:	HERV-K_8p23.1 provirus ancestral Pol protein	P63133	S65	EKGHIEPSFSPWNSP	71 / 7 AA	108
Phosphosite 16:	HERV-K_19p13.11 provirus ancestral Pol protein	P63132	S65	EKGHIEPSFSPWNSP	71 / 7 AA	108
Phosphosite 17:	HERV-K_6q14.1 provirus ancestral Gag-Pol polyprotein	P63128	S988	EKGHIEPSFSPWNSP	71 / 7 AA	124
Phosphosite 18:	HERV-K_5q33.3 provirus ancestral Pol protein	P10266	S65	EKGHIEPSFSPWNSP	71 / 7 AA	115
Phosphosite 19:	DZIP3	Q86Y13	S1030	AGLRSDPSIMNWERI	71 / 7 AA	139
Phosphosite 20:	ATP5G1	P05496	S43	SSKQPSYSNFPLQVA	62 / 8 AA	14