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The T7 Group

  • Rudolf Hausmann
Part of the The Viruses book series (VIRS)

Abstract

In this chapter I shall not try to review in detail the genetics and molecular biology of phage T7, since this topic has been covered repeatedly (Studier, 1972; Hausmann, 1976; Rabussay and Geiduschek, 1977; Studier and Dunn, 1983). Besides, Dunn and Studier (1983) have exhaustively analyzed the genome structure of T7, giving the full sequence of the 39,936 base pairs of its DNA and a complete survey of its 50-odd genes and its functions (where known), in addition to a full analysis of its signal sequences, such as the terminal repeats, promoters, terminators, processing sequences for RNase III, and origins of DNA replication. Rather, I shall here recapitulate some of the basic findings with regard to structure and life cycle of T7 in order to allow the reader to follow my thought with regard to the main problem I have in mind (but which I am unable to solve): How did this surprising biological entity come about? Unless we find satisfactory answers to the questions regarding origins and evolution of this phage, we cannot really claim to have understood it, notwithstanding the full grasp we might come to have of all molecular details of the workings of that self-replicating machine.

Keywords

Genetic Recombination Phage Genome Shigella Sonnei Template Specificity Amber Mutant 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1988

Authors and Affiliations

  • Rudolf Hausmann
    • 1
  1. 1.Institut für Biologie III der Universität78 FreiburgFederal Republic of Germany

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