Characterization of the complete mitochondrial genome of Spirocerca lupi: sequence, gene organization and phylogenetic implications

Table 4 Codon usage of Spirocerca lupi mitochondrial protein-coding genes

Amino acid	Codon	Number	Frequency (%)	Amino acid	Codon	Number	Frequency (%)
Phe	TTT	591	17.03	Met	ATA	52	1.49
Phe	TTC	16	0.46	Met	ATG	103	2.96
Leu	TTA	195	5.61	Thr	ACT	81	2.33
Leu	TTG	235	6.77	Thr	ACC	3	0.08
Ser	TCT	139	4.00	Thr	ACA	2	0.05
Ser	TCC	7	0.20	Thr	ACG	3	0.08
Ser	TCA	8	0.23	Asn	AAT	87	2.50
Ser	TCG	6	0.17	Asn	AAC	6	0.17
Tyr	TAT	214	6.16	Lys	AAA	42	1.21
Tyr	TAC	6	0.17	Lys	AAG	56	1.61
Stop	TAA	7	0.20	Ser	AGT	99	2.85
Stop	TAG	5	0.14	Ser	AGC	5	0.14
Cys	TGT	75	2.16	Ser	AGA	22	0.63
Cys	TGC	3	0.08	Ser	AGG	30	0.86
Trp	TGA	36	1.03	Val	GTT	239	6.88
Trp	TGG	56	1.61	Val	GTC	5	0.14
Leu	CTT	19	0.54	Val	GTA	35	1.00
Leu	CTC	0	0	Val	GTG	37	1.06
Leu	CTA	10	0.28	Ala	GCT	64	1.84
Leu	CTG	2	0.05	Ala	GCC	4	0.11
Pro	CCT	55	1.58	Ala	GCA	1	0.02
Pro	CCC	7	0.20	Ala	GCG	10	0.28
Pro	CCA	6	0.17	Asp	GAT	66	1.90
Pro	CCG	9	0.25	Asp	GAC	2	0.05
His	CAT	52	1.49	Glu	GAA	31	0.89
His	CAC	1	0.02	Glu	GAG	42	1.21
Gln	CAA	20	0.57	Gly	GGT	143	4.12
Gln	CAG	31	0.89	Gly	GGC	12	0.34
Arg	CGT	46	1.32	Gly	GGA	33	0.95
Arg	CGC	1	0.02	Gly	GGG	72	2.07
Arg	CGA	3	0.08	IIe	ATT	212	6.10
Arg	CGG	6	0.17	IIe	ATC	4	0.11

ISSN: 1756-3305