Patterns of Synonymous Codon Usage on Human Metapneumovirus and Its Influencing Factors

Table 2

Nucleotide contents and effective number of codons in complete coding region in HMPV genomes.

SN	A%	U%	G%	C%	GC%	A3%	U3%	C3%	G3%	GC3%	*ENC
1	37.51	25.18	19.52	17.8	37.3	41.76	27.7	17.68	11.6	29.28	45.741
2	37.49	25.58	19.55	17.4	36.93	41.67	28.6	16.83	11.52	28.35	45.148
3	37.78	25.27	19.63	17.3	36.95	36.09	21.5	15.18	17.51	32.69	47.608
4	37.4	25.5	19.61	17.5	37.09	41.55	27.9	17.44	11.76	29.2	45.667
5	37.58	25.41	19.76	17.3	37.02	41.32	28.1	16.71	12.47	29.18	45.529
6	37.65	25.64	19.75	17	36.71	41.54	28.5	16.25	12.35	28.6	45.662
7	37.33	25.66	19.59	17.4	37.01	36.36	23.1	16.45	15.7	32.16	48.28
8	37.53	26.27	19.88	16.3	36.2	41.52	29.3	15.5	12.34	27.84	45.127
9	37.61	25.69	19.72	17	36.7	41.48	28.8	16.05	12.36	28.41	45.468
10	37.46	25.58	19.51	17.5	36.96	41.62	28.2	17.26	11.58	28.85	45.707
11	37.22	25.83	19.76	17.2	36.95	41.16	28.9	16.56	12.07	28.63	45.379
12	37.73	25.68	19.7	16.9	36.59	41.55	28.9	15.85	12.42	28.27	45.28
13	37.42	25.72	19.59	17.3	36.86	41.47	28.9	16.61	11.67	28.28	45.274
14	37.4	25.47	19.61	17.5	37.13	41.38	28.1	17.46	11.77	29.24	45.58
15	37.47	25.51	19.87	17.2	37.02	41.16	28.4	16.52	12.64	29.16	45.442
16	37.61	25.43	19.78	17.2	36.96	41.56	28.4	16.32	12.45	28.77	45.778
17	37.4	25.5	19.61	17.5	37.09	41.55	27.9	17.44	11.76	29.2	45.667
Mean	37.51	25.58	19.67	17.2	36.91	40.87	27.7	16.6	12.59	29.18	45.785
SD	0.144	0.241	0.114	0.33	0.25	1.755	2.1	0.713	1.589	1.296	0.8458

Abbreviation: SN is serial number; *ENC is effective number of codons.