TABLE 2.
General features of the chromosomes of three Streptomyces speciesc
| Species | Length (bp) | TIR (bp) | Avg G+C content (%) | No. of protein-coding genes | Avg CDS length (bp) | Coding density (%) | No. of rRNA (16S-23S-5S) operons | No. of tRNA genes | No. of tmRNAs | No. of 4.5S RNAs |
|---|---|---|---|---|---|---|---|---|---|---|
| S. griseus | 8,545,929 | 132,910 | 72.2 | 7,138 | 1,055 | 88.1 | 6 | 66 | 1 | 1 |
| S. coelicolor A3(2)a | 8,667,507 | 21,653 | 72.1 | 7,825 | 991 | 88.9 | 6 | 63 | 1 | 1 |
| S. avermitilisb | 9,025,608 | 49 | 70.7 | 7,583 | 1,027 | 86.3 | 6 | 68 | 1 | 1 |
a
Data reported by Bentley et al. (3).
b
Up-to-date annotation data are shown.
c
tmRNAs, transfer-messenger RNAs; CDS, protein coding sequence. The topology of the chromosome each species is linear.