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:	S614
P-Site Sequence:	PRHKPNISNKPKSSK
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	S614	PRHKPNISNKPKSSK	100 / 9 AA	121
Phosphosite 1:	SPATA9	Q9BWV2	S223	LPEKPDISDYPKLLA	66 / 9 AA	29
Phosphosite 2:	DRG2	P55039	Y178	NKHKPNIYFKPKKGG	77 / 9 AA	41
Phosphosite 3:	WDR64	B1ANS9	S355	RLWHPNISTKPVGKL	85 / 7 AA	124
Phosphosite 4:	ZNF280D	Q6N043	S592	SKYKPKISNMQKKQS	66 / 9 AA	109
Phosphosite 5:	ASB2	Q96Q27	S153	AGAEPDISNKSRETP	62 / 8 AA	65
Phosphosite 6:	HEFL	Q9NQ75	Y350	QNTKPNIYDIPKATS	66 / 9 AA	87
Phosphosite 7:	POLR2A	P24928	S1131	LKELINISKKPKTPS	85 / 7 AA	217
Phosphosite 8:	UBTF	P17480	S650	AAYKEYISNKRKSMT	66 / 9 AA	89
Phosphosite 9:	MLL	Q03164	S3178	SSFPPNISNPPSGLL	85 / 7 AA	432
Phosphosite 10:	AFF1	P51825	S130	PLSVGNISHNPKMAQ	71 / 7 AA	131
Phosphosite 11:	NHSL1	Q5SYE7	S1200	SRKPPPISKKPKLFL	75 / 8 AA	171
Phosphosite 12:	TANC2	Q9HCD6	S324	PYRPPDISLKPLLFE	71 / 7 AA	220
Phosphosite 13:	SPAG5	Q96R06	S110	DPIPQISSTPKTSEE	62 / 8 AA	134
Phosphosite 14:	SPAG5	Q96R06	S109	LDPIPQISSTPKTSE	62 / 8 AA	134
Phosphosite 15:	TTC18	Q5T0N1	S854	QTWDPSISQKPSNTF	71 / 7 AA	126
Phosphosite 16:	ADAD2	Q8NCV1	T342	LHLYISNTPKGAARD	71 / 7 AA	62
Phosphosite 17:	UBN2	Q6ZU65	S1066	ASPKPSLSAKPSVST	62 / 8 AA	146
Phosphosite 18:	DYRK1A	Q13627	S49	DRRQPNISDQQVSAL	50 / 8 AA	86
Phosphosite 19:	CCDC66	A2RUB6	S192	SLYLNSISNQPKDEN	71 / 7 AA	109
Phosphosite 20:	Protein USP6-like 2	Q6URH7	S16	SLSANISSSPKGSPS	62 / 8 AA	18