Results 141 to 150 of about 47,591 (156)

Deletion formation in bacteriophage T4

Journal of Molecular Biology, 1988
We have manipulated the dispensable region of the rIIB gene of bacteriophage T4 in order to study the generation of deletions involving direct repeats. We show that recombination between different parental chromosomes is one source of the deletions we have studied.
B S, Singer, J, Westlye
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Organization of DNA in bacteriophage T4

Journal of Molecular Biology, 1964
A quantitative evaluation of the degree of preferred orientation of the DNA in bacteriophage T4 has been carried out, principally by the method of flow birefringence. The results indicate that the degree of preferred orientation is small, with about 9% of the DNA aligned preferentially along the long axis of the phage.
M, GELLERT, D R, DAVIES
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Thermal analysis of bacteriophage T4

Biochemical and Biophysical Research Communications, 1979
Abstract The process of bacteriophage T4 morphogenesis was studied using a heat leakage scanning calorimeter. Thermograms of defective mutant 49 (am NG727) in permissive and non-permissive cells of Escherichia coli showed a difference in thermal properties between packaged and non-packaged DNA molecules.
Y, Kawai, H, Takahashi, T, Fujita, S, Koga   +3 more
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Structure and morphogenesis of bacteriophage T4

Cellular and Molecular Life Sciences (CMLS), 2003
Bacteriophage T4 is one of the most complex viruses. More than 40 different proteins form the mature virion, which consists of a protein shell encapsidating a 172-kbp double-stranded genomic DNA, a 'tail,' and fibers, attached to the distal end of the tail.
Leiman, P. G., Kanamaru, S., Mesyanzhinov, V. V., Arisaka, F., Rossmann, M. G.   +4 more
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Gamma-T4 hybrid bacteriophage carrying the thymidine kinase gene of bacteriophage T4

Journal of Virology, 1984
Among 32 lambda-T4 recombinant phages selected for growth on a thymidylate synthetase-deficient (thyA) host, 2 were shown to carry the T4 thymidine kinase (tk) gene. The lambda-T4tk phages contain two T4 HindIII DNA fragments (2.0 and 1.5 kilobases) that hybridize to restriction fragments of T4 DNA, encompassing the tk locus at 60 kilobases on the T4 ...
A J, Mileham, N E, Murray, H R, Revel
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On the Structure of the Scaffolding Core of Bacteriophage T4

Journal of Computational Biology, 1999
The scaffolding core in bacteriophages is a temporary structure that plays a major role in determining the shape of the protein shell that encapsulates the viral DNA. In the currently accepted structure for the scaffolding core in bacteriophage T4, there is a symmetry mismatch between the protein shell, which has fivefold symmetry, and the scaffolding ...
Bonnie Berger, G. W. Hoest, J. R. Paulson, Peter W. Shor   +3 more
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Assembly of the tau of bacteriophage T4

Journal of Molecular Biology, 1968
Abstract The formation of bacteriophage T4 has been studied by characterizing the phage components accumulating in cells infected—under restrictive conditions—with mutants blocked at different stages of the assembly process. Three structures which appear to be intermediates in tail assembly have been isolated by centrifugation: baseplates (S20,w ≅ 80
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On the regulation of the morphogenesis of bacteriophage T4

Journal of Molecular Biology, 1963
Two steps in the morphogenesis of bacteriophage T4 were studied; the formation of the “early” proteins and of phage structural elements. The synthesis of the “late” phage proteins was prevented if the “early” proteins were defective (containing 7-azatryptophan or p -fluorophenylalanine).
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Bacteriophage T4 RegB Endoribonuclease

2001
Publisher Summary The development of bacteriophage T4 is largely determined by a precisely coordinated subversion of the host RNA polymerase to permit initiation from different classes of T4-specific promoters. The synthesis, in cascade, of regulatory elements that modify the transcription apparatus, ensures the temporal ordering of the developmental
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The structure of the “Polyheads” of T4 bacteriophage

Journal of Molecular Biology, 1964
J T, FINCH, A, KLUG, A O, STRETTON
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