The characteristics of Bacillus subtilis dnaF, a mutation specifying a temperature sensitive phenotype, were examined to determine its relationship to polC, the gene specifying the structure of DNA polymerase III (pol III). Exposure of growing cells bearing dnaF to non-permissive temperature inhibit
Mapping of the gene specifying DNA polymerase III of Bacillus subtilis
β Scribed by Love, Evelyn ;D'Ambrosio, Joseph ;Brown, Neal C. ;Dubnau, David
- Publisher
- Springer
- Year
- 1976
- Tongue
- English
- Weight
- 641 KB
- Volume
- 144
- Category
- Article
- ISSN
- 0026-8925
No coin nor oath required. For personal study only.
β¦ Synopsis
polC, the gene specifying the structure of the replication-specific DNA polymerase III of B. subtilis, was mapped by exploiting azp-12, a mutation conferring resistance to azopyrimidine which determines a mutant, azopyrimidine-resistant enzyme. azp-12 was located in the area of the pyrA locus and is between spcB1 and recA1. azp-12 was linked by transformation to four other mutations which influence the in vitro behaviour of DNA polymerase III--polC25, polC26, mut-1(ts), and DNAF133; the close linkage of these five mutations strongly suggests that they are alleles of the same gene.
π SIMILAR VOLUMES
We have determined the nucleotide sequence of the polC gene of Bacillus subtilis which codes for DNA polymerase III. Our recent analysis has revealed that the gene comprises 4311 nucleotides, from the start to the stop codon, 306 nucleotides more than we reported earlier. The plasmid reported by us
Different clones carrying a chromosomal DNA fragment able to transform Bacillus subtilis mutants dnaA13, dnaB19, dnaG5, recG40 and polA42 to a wild-type phenotype were isolated from a library constructed in plasmid pJH101. A lambda recombinant clone carrying a chromosomal fragment able to transform