Table 4

Major trends in synonymous codon and amino acid usage, as obtained from COA of RSCU and amino acid usage in genes/gene-products encoded by N. equitans

Codon usage

Amino acid usage



Principal axes

Variability explained (%)

Source of variation

Correlation coefficient* (r-value)

Variability explained (%)

Source of variation

Correlation coefficient* (r-value)


1st axis

7.53

CAI

0.42

21.25

Mean Aromaticity

-0.66

NC

-0.29

Gravy score

-0.56

A3S

0.24

CAI

0.39

2nd axis

7.05

_

_

13.32

Aliphatic Index

0.78

Gravy Score

0.75

3rd axis

5.71

_

_

11.12

MMW

0.80

CAI

-0.31


* significant at p < 0.0001

Das et al. BMC Genomics 2006 7:186   doi:10.1186/1471-2164-7-186

Open Data