Table 1.
Summary of physical dimensions and genomic characteristics of six phiCbK-like bacteriophages of C. crescentus
| Feature |
Phage isolate |
|||||
|---|---|---|---|---|---|---|
| phiCbk | Magneto | Swift | Kanma | Rogue | Colossus | |
| Head length (nm)a |
205 (±2) |
211 (±3) |
219 (±6) |
205 (±3) |
205 (±9) |
292 (±4) |
| Head width (nm)a |
56 (±2) |
58 (±2) |
63 (±2) |
61 (±2) |
60 (±1) |
65 (±5) |
| Tail length (nm)a |
300 (±8) |
293 (±5) |
295 (±4) |
314 (±10) |
319 (±12) |
336 (±9) |
| Unit genome (bp) |
205,423 |
208,983 |
209,245 |
211,574 |
213,399 |
279,967 |
| Terminal repeat (bp) |
10,287 |
9,946 |
9,971 |
10,254 |
10,321 |
~16,700b |
| GC content |
66.2% |
66.6% |
66.1% |
66.2% |
66.6% |
62.2% |
| No. protein-coding genes |
318 |
328 |
325 |
333 |
331 |
448 |
| No. unique genesc |
1 |
3 |
2 |
4 |
61 |
307 |
| No. tRNA genes | 26 | 27 | 27 | 26 | 23 | 28 |
aPhage physical dimensions are the means of measurements of five virions, bracketed values after each dimension indicate standard deviations.
bOne boundary of the terminal repeat in Colossus is indistinct, thus the repeat length is approximate.
cProtein-coding genes that were not detected in any of the other 5 phiCbK-like phage genomes sequenced.