TABLE 3.
Effect of gene deletions on the development of genetic competence in dependence of the competence transcription factor ComKa.
| Wild type | PmtlA-comKS | |
| Mutant | Colonies per μg of DNA | |
| Wild type | 138,60017,006 | 47,9528,854 |
| ΔdegU | 00 | 60,85313,693 |
| ΔcomEC | 00 | 00 |
| ΔnrnA | 1,689316 | 34,9336,378 |
| ΔftsH | 00 | 00 |
| ΔgreA | 00 | 00 |
| Δrny | 00 | 00 |
| ΔrnjA | 00 | 00 |
| ΔpnpA | 176 | 29319 |
| ΔytrA | 00 | 467278 |
aCells were transformed with chromosomal DNA of strain GP1152 harboring a tetracycline resistance marker as described in section “Materials and Methods.”