Phage T4
Role of Exonucleolytic Degradation in Group I Intron Homing in Phage T4
... the phage T4 td intron is initiated by the intron-encoded endonuclease I-TevI, which cleaves the intronless allele 23 and 25 nucleotides upstream of the intron insertion site ...for phage nucleases ...
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PARTIAL DIPLOIDY IN PHAGE T4
... The variation i n the frequency with which different rll-diploids produce r- segregants and in the ratio with which the two types of r-segregants are produced indicates that[r] ...
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STIMULATION OF RECOMBINATION IN MULTIPLICITY-REACTIVATED BICOMPLEXES AND THE GENETIC MAP LENGTH OF PHAGE T4
... 1958) by assuming that the extra crossovers required for MR can be found as an addition to the normal crossover frequency between the two markers. A better consistency with present [r] ...
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Two Modes of In Vivo Transcription for Genes 43 and 45 of Phage T4
... Sodium dodecyl sulfate SDS and N, N'-methylene-bis-acrylamide were purchased from Bio-Rad Laboratories, Rich- Downloaded from http://jvi.asm.org/ on November 10, 2019 by guest Sensitivit[r] ...
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Location and unusual membrane topology of the immunity protein of the Escherichia coli phage T4.
... Specific localization of the lysis protein of bacteriophage MS2 in membrane adhesion sites of Escherichia coli.. In vivo synthesis and properties of uracil-containing DNA.[r] ...
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INDUCTION OF PURE MUTANT CLONES BY REPAIR OF INACTIVATING DNA ALTERATIONS IN PHAGE T4
... (The observed decrease may result on the one hand from the conversion of some phages producing m-plaques into phages producing r+ plaques, by an inactivation alteration plus repair[r] ...
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REGION-SPECIFIC RECOMBINATION IN PHAGE T4. II. STRUCTURE OF THE RECOMBINANTS
... The glucosylation-dependent differences that we found in these crosses, plus the differences in recombination frequencies reported for two- factor crosses (LEVY and GOLDBERG 19[r] ...
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PHENOTYPIC REVERSION BY HYDROXYLAMINE: A NEW GROUP OF SUPPRESSIBLE PHAGE T4 rII MUTANTS
... The finding of only a small number of mutants responding to HA in phenotypic reversion may be related to the fact that only a given base sequence (or se- quences) and[r] ...
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The phage T4 DNA ligase in vivo improves the survival-coupled bacterial mutagenesis
... found T4 DNA ligase in vivo was able to mediate the repair of DNA double strands breaks (DSBs) (Manuscript ...called T4 mediated survival-coupled mutagenesis (T4SM) was proposed, which combined the ...
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GENETIC ALTERATIONS OF THE rII B CISTRON POLYPEPTIDE OF PHAGE T4
... The chromatogram shows the analysis of the peptides labeled with 14C-tryptophan originating from cells infected with an rHB232 revertant (which also carried the A cistron m[r] ...
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GENETIC INTERFERENCE AND RECOMBINATION IN PHAGE T4: THE ROLE OF HETEROZYGOTES
... This concept of recombinant formation is not new, as LEVINTHAL (1954) has demonstrated heterozygotes to be sufficient to ac- count for all recombination, while EDGAR (1961 ) [r] ...
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TOPOISOMERASE INVOLVEMENT IN MULTIPLICITY REACTIVATION OF PHAGE T4
... We chose as our standard unit dose for all monocomplex and multicomplex inactivation experiments the time period of treatment which resulted in an average of 1.0 let[r] ...
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Membrane Interaction of the Portal Protein gp20 of Bacteriophage T4
... the phage T4 is divided into three distinct major ...the T4-own prohead protease gp21*, which then degrades most scaffolding proteins into small peptides (13, 22, 25), which are expelled from the ...
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5-FLUOROURACIL RESCUE OF dCMP HYDROXYMETHYLASE IN ESCHERICHIA COLI B INFECTED BY MUTANT am N122 OF BACTERIOPHAGE T4
... Assay conditions: The enzyme preparation and assay system used for the HMase produced by normal phage T4 were not satisfactory for the detection of the HMase synthesized i[r] ...
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Immunogenicity Studies of Proteins Forming the T4 Phage Head Surface
... anti-T4 phage antibodies were frequent in the human population (81% of ...to phage therapy, T4-specific antibodies resulted from natural contact with ...the phage must be cross-reacting ...
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A UNIQUE APPROACH TO TREAT RESISTANT BACTERIAL STRAINS WITH COST EFFECTIVE COLIPHAGES
... Mechanism of action of bacteriophages/ coliphages Bacteriophages that infect especially E. coli and multiply within these bacteria, causing lysis of bacterial cells and producing their new progeny are called coliphages. ...
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Expression of cloned bacteriophage T4 uvsW and uvsY genes in rec+ and rec- Escherichia coli.
... In early experiments with T4 uvsW, UVirradiated phage were simply plated on midlog phase cultures of strains carrying plasmids Since there is no simple method for identifying thought to [r] ...
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Evidence that mismatched bases in heteroduplex T4 bacteriophage are recognized in vivo.
... To investigate this point we have singly infected cells with T4 phage populations enriched for heteroduplex heterozygotes 13 and examined these infected cells for loss of segregating cap[r] ...
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Postinfection control in T4 bacteriophage infection: inhibition of the rep function.
... The loss of the DNA-dependent ATPase activity after T4 phage infection could be due to a natural instability of the enzyme, combined with the inhibition of host protein synthesis.. Alter[r] ...
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Polyacrylamide gel electrophoresis of intact bacteriophage T4D particles.
... In preliminary experiments, no band of phage particles either wild type or amB23 could be detected if electrophoresis was carried out in acetate buffer at pH 4.0.. This suggested that T4[r] ...
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