RRC ID 30076
著者 Donovan WP, Kushner SR.
タイトル Amplification of ribonuclease II (rnb) activity in Escherichia coli K-12.
ジャーナル Nucleic Acids Res
Abstract A 7.1 kb HindIII-XhoI fragment of E. coli DNA which contains the structural gene for ribonuclease II (rnb) has been cloned in the recombinant plasmid pDK24. At least two constitutively expressed genes are encoded on the fragment as shown by maxicell analysis. On denaturing polyacrylamide gels RNase II appears as a single 72,000 dalton species. The approximate site of transcription initiation of the rnb gene has been mapped. Although derivatives of E. coli harboring pDK24 contained 10-fold more RNase II activity that wild type strains without the plasmid, the degradation rate of mRNA was similar in all strains tested. Strains deficient in both RNase II and polynucleotide phosphorylase appear inviable.
巻・号 11(2)
ページ 265-75
公開日 1983-1-25
DOI 10.1093/nar/11.2.265
PMID 6338477
PMC PMC325713
MeSH Cloning, Molecular* DNA, Recombinant / metabolism Escherichia coli / enzymology* Escherichia coli / genetics Exoribonucleases / genetics* Gene Amplification* Genes* Genes, Bacterial* Kinetics Molecular Weight Plasmids Transcription, Genetic
IF 11.502
引用数 41
WOS 分野 BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
原核生物(大腸菌) ME8285