Restriction analysis of lambda EMBL3 background recombinants: occurrence of lambda phages carrying a head to tail oriented left arm DNA sequence. 1989

H Tröster, and W Kissel, and M F Trendelenburg, and A Hofmann
Institute of Experimental Pathology, German Cancer Research Center, Heidelberg, Federal Republic of Germany.

Eight representative recombinant background clones of lambda EMBL3 were analysed using KpnI, BamHI, SalI, EcoRI and HindIII digestion. We found that lambda EMBL3 carries its own left arm in the BamHI cloning site. In the way, recombinant molecules were found to be generated which can grow on Escherichia coli strain NM539. In all cases analysed, the left arm DNA was inserted in a head to tail orientation. Seven clones carried a restored BamHI site at the cos site-BamHI site connection. In the region where the inserted left arm and the right arm were ligated, BamHI cloning produces a large palindromic sequence consisting of two polylinkers. This BamHI site was incompletely cleaved in all cases analysed. We assume that a part of the lambda DNA molecule in this region shows a cruciform structure prohibiting recognition or cleavage of this site by restriction endonuclease BamHI.

UI MeSH Term Description Entries
D009690 Nucleic Acid Conformation The spatial arrangement of the atoms of a nucleic acid or polynucleotide that results in its characteristic 3-dimensional shape. DNA Conformation,RNA Conformation,Conformation, DNA,Conformation, Nucleic Acid,Conformation, RNA,Conformations, DNA,Conformations, Nucleic Acid,Conformations, RNA,DNA Conformations,Nucleic Acid Conformations,RNA Conformations
D010582 Bacteriophage lambda A temperate inducible phage and type species of the genus lambda-like viruses, in the family SIPHOVIRIDAE. Its natural host is E. coli K12. Its VIRION contains linear double-stranded DNA with single-stranded 12-base 5' sticky ends. The DNA circularizes on infection. Coliphage lambda,Enterobacteria phage lambda,Phage lambda,lambda Phage
D002874 Chromosome Mapping Any method used for determining the location of and relative distances between genes on a chromosome. Gene Mapping,Linkage Mapping,Genome Mapping,Chromosome Mappings,Gene Mappings,Genome Mappings,Linkage Mappings,Mapping, Chromosome,Mapping, Gene,Mapping, Genome,Mapping, Linkage,Mappings, Chromosome,Mappings, Gene,Mappings, Genome,Mappings, Linkage
D003001 Cloning, Molecular The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells. Molecular Cloning
D004279 DNA, Viral Deoxyribonucleic acid that makes up the genetic material of viruses. Viral DNA
D004926 Escherichia coli A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc. Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D005822 Genetic Vectors DNA molecules capable of autonomous replication within a host cell and into which other DNA sequences can be inserted and thus amplified. Many are derived from PLASMIDS; BACTERIOPHAGES; or VIRUSES. They are used for transporting foreign genes into recipient cells. Genetic vectors possess a functional replicator site and contain GENETIC MARKERS to facilitate their selective recognition. Cloning Vectors,Shuttle Vectors,Vectors, Genetic,Cloning Vector,Genetic Vector,Shuttle Vector,Vector, Cloning,Vector, Genetic,Vector, Shuttle,Vectors, Cloning,Vectors, Shuttle
D015245 Deoxyribonuclease BamHI One of the Type II site-specific deoxyribonucleases (EC 3.1.21.4). It recognizes and cleaves the sequence G/GATCC at the slash. BamHI is from Bacillus amyloliquefaciens N. Numerous isoschizomers have been identified. EC 3.1.21.-. DNA Restriction Enzyme BamHI,Deoxyribonuclease BstI,Endonuclease BamHI,AacI Endonuclease,AaeI Endonuclease,AccEBI Endonuclease,AliI Endonuclease,ApaCI Endonuclease,BamFI Endonuclease,BamHI Deoxyribonuclease,BamHI Endonuclease,BamI Endonuclease,BamKI Endonuclease,BamNI Endonuclease,BnaI Endonuclease,BstI Deoxyribonuclease,BstI Endonuclease,DdsI Endonuclease,Endonuclease AacI,Endonuclease AaeI,Endonuclease AccEBI,Endonuclease Ali12257I,Endonuclease Ali12258I,Endonuclease AliI,Endonuclease BamFI,Endonuclease BamKI,Endonuclease BamNI,Endonuclease BnaI,Endonuclease Bst1503,Endonuclease BstI,Endonuclease DdsI,Endonuclease GdoI,Endonuclease GinI,Endonuclease GoxI,Endonuclease MleI,Endonuclease NasBI,Endonuclease NspSAIV,Endonuclease RhsI,Endonuclease SolI,GdoI Endonuclease,GinI Endonuclease,GoxI Endonuclease,MleI Endonuclease,NasBI Endonuclease,NspSAIV Endonuclease,RhsI Endonuclease,SolI Endonuclease,Endonuclease, ApaCI,Endonuclease, SolI,SolI, Endonuclease

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