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:	USP18
Human P-Site:	S22
P-Site Sequence:	ILAESSQSPADLEEK
UniProt:	Q9UMW8
Intern. Prot. ID:

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	USP18	Q9UMW8	S22	ILAESSQSPADLEEK	100 / 9 AA	43
Phosphosite 1:	SIX5	Q8N196	S283	TEDESSRSPEDLERG	77 / 9 AA	75
Phosphosite 2:	USP18	Q9UMW8	S20	QSILAESSQSPADLE	100 / 7 AA	43
Phosphosite 3:	NAB1	Q13506	S174	TESEHSLSPADLGSP	77 / 9 AA	54
Phosphosite 4:	Rabphilin 3A	Q9Y2J0	S263	GAGDSSRSPAGLRRA	66 / 9 AA	77
Phosphosite 5:	C14orf102	Q9H7Z3	S379	RAIESNQSSVDLKLA	66 / 9 AA	133
Phosphosite 6:	HECW1	Q76N89	S928	SEAESSQSSLDLRRE	77 / 9 AA	180
Phosphosite 7:	AKAP3	O75969	S208	RVSGSSQSPPNLKYK	75 / 8 AA	95
Phosphosite 8:	MAGE-C1	O60732	S650	SFPESSQSPPEGPVQ	75 / 8 AA	124
Phosphosite 9:	KCNH1	O95259	S966	TSRRSSQSPQELFEI	75 / 8 AA	111
Phosphosite 10:	LOC136288	Q8NEG2	S281	DTPESSQSPEESVSA	75 / 8 AA	33
Phosphosite 11:	LOC136288	Q8NEG2	S250	RASVLSQSPRDLEGP	85 / 7 AA	33
Phosphosite 12:	C22orf27	Q8N0Y4	S80	SLTSASQSSADLRGA	85 / 7 AA	18
Phosphosite 13:	BRCA1	P38398	S1613	KVAESAQSPAAAHTT	85 / 7 AA	208
Phosphosite 14:	GPBAR1	Q8TDU6	S324	YHPSSQSSVDLDLN_	75 / 8 AA	35
Phosphosite 15:	BAHCC1	Q9P281	S1446	ERDESSRSPARRGPG	85 / 7 AA	277
Phosphosite 16:	BAG3	O95817	S171	ASHGPERSQSPAASD	85 / 7 AA	62
Phosphosite 17:	BAG3	O95817	S173	HGPERSQSPAASDCS	85 / 7 AA	62
Phosphosite 18:	MAGE-C1	O60732	S648	PQSFPESSQSPPEGP	85 / 7 AA	124
Phosphosite 19:	LOC643677	Q8NDH2	S2148	DIQTDIESPADLDEC	83 / 6 AA	278
Phosphosite 20:	LOC136288	Q8NEG2	S278	GPEDTPESSQSPEES	100 / 6 AA	33