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:	S600
P-Site Sequence:	VDSIFSESEKRQHSP
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	S600	VDSIFSESEKRQHSP	100 / 9 AA	121
Phosphosite 1:	SEMA4B	Q9NPR2	S798	GSRVFTESEKRPLSI	66 / 9 AA	92
Phosphosite 2:	SOX8	P57073	S146	LWRLLSESEKRPFVE	66 / 9 AA	47
Phosphosite 3:	RASA1	P20936	S509	AQLIYFESEKRATKP	75 / 8 AA	116
Phosphosite 4:	DNAJB11	Q9UBS4	S80	AYEVLSDSEKRKQYD	55 / 9 AA	41
Phosphosite 5:	N4BP1	O75113	S868	LLKIFPDSEQRLKID	62 / 8 AA	100
Phosphosite 6:	NLRP9	Q7RTR0	S301	KLLGFSESEKKSYFS	85 / 7 AA	113
Phosphosite 7:	DCLRE1B	Q9H816	S418	KAVPFCESQKRVTML	71 / 7 AA	60
Phosphosite 8:	SOX9	P48436	S149	LWRLLNESEKRPFVE	55 / 9 AA	56
Phosphosite 9:	STAB2	Q8WWQ8	S2537	SYDPFTDSEERQLEG	62 / 8 AA	277
Phosphosite 10:	SEMA4B	Q9NPR2	T796	PPGSRVFTESEKRPL	71 / 7 AA	92
Phosphosite 11:	ZNF148	Q9UQR1	S67	ADEVLQESEMRQQDM	55 / 9 AA	89
Phosphosite 12:	C10orf90	Q96M02	S424	TKVFSGSSKRQQGEV	75 / 8 AA	78
Phosphosite 13:	Uncharacterized protein LOC339524	Q6ZW34	S260	CQGISSESERRTRSF	75 / 8 AA	29
Phosphosite 14:	KCTD3	Q9Y597	S738	IAEGFSESKKRSSED	85 / 7 AA	89
Phosphosite 15:	NEK9	Q8TD19	S838	LSAAFSESEKDTLPY	100 / 6 AA	107
Phosphosite 16:	NEK9	Q8TD19	S836	SPLSAAFSESEKDTL	100 / 6 AA	107
Phosphosite 17:	N4BP1	O75113	S290	QKRRFSDSEERHTKK	62 / 8 AA	100
Phosphosite 18:	NDC80	O14777	S76	SQLGIFSSSEKIKDP	85 / 7 AA	74
Phosphosite 19:	UPF0639 protein	A6NEE1	S65	FLLYYSESEKKSFET	62 / 8 AA	59
Phosphosite 20:	KIAA1671	Q9BY89	S1671	RRSRFSESESRSPLE	85 / 7 AA	197