Additional file 4.CUB commitment and variation. The 64 codons in 113 species were sorted according to the size and +/- orientation of their CUB. Some manual adjustments were made to segregate the data into four approximately symmetrical subgroups (corresponding to the color codes). Format: XLS Size: 119KB Download file This file can be viewed with: Microsoft Excel Viewer Biro Theoretical Biology and Medical Modelling 2008 5:16 doi:10.1186/1742-4682-5-16 |