Table 1.

The relative synonymous codon usage frequency (RSCU) of PCV and swine

AAa	Codon	SUSb	PCV	AAa	Codon	SUSb	PCV
Leu	UUA	0.65	0.957	Tyr	UAU	1.12	0.964
	UUG	0.85	1.372		UAC	0.82	1.036
	CUU	1.20	0.912	His	CAU	0.97	1.078
	CUC	1.12	0.761		CAC	1.03	0.921
	CUA	0.56	0.465	Gln	CAA	0.85	0.733
	CUG	1.62	1.528		CAG	1.15	1.266
Ile	AUU	1.06	1.441	Asn	AAU	1.02	1.087
	AUC	1.11	0.786		AAC	0.98	0.912
	AUA	0.83	0.769	Lys	AAA	1.21	0.907
Val	GUU	1.11	0.875		AAG	0.79	1.092
	GUC	0.96	0.606	Asp	GAU	0.95	0.905
	GUA	0.64	1.220		GAC	1.05	1.094
	GUG	1.29	1.297	Glu	GAA	1.09	1.348
Gly	GGU	0.81	1.016		GAG	0.91	0.651
	GGC	1.08	0.632	Cys	UGU	1.06	1.275
	GGA	1.18	1.118		UGC	0.94	0.724
	GGG	0.94	1.232	Arg	CGU	0.55	0.572
Pro	CCU	1.26	1.061		CGC	0.65	0.376
	CCC	1.08	1.099		CGA	0.54	0.704
	CCA	1.23	1.274		CGG	0.74	1.102
	CCG	0.43	0.566		AGA	1.86	1.842
Thr	ACU	1.19	1.127		AGG	1.67	1.400
	ACC	1.23	1.401	Ser	AGU	0.93	1.322
	ACA	1.24	0.682		AGC	1.22	1.310
	ACG	0.34	0.785		UCU	1.34	1.064
Ala	GCU	1.36	0.699		UCC	1.20	1.067
	GCC	1.22	1.027		UCA	1.00	0.812
	GCA	1.05	1.118		UCG	0.31	0.419
	GCG	0.37	1.153	Phe	UUU	1.11	1.402
					UUC	0.89	0.597

a AA is the abbreviation of Amino Acid.

b SUS is swine.

c The preferentially used codons for each amino acid are displayed in bold.