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In a 1945 study by Demerec and Fano, [4] T7 was used to describe one of the seven phage types (T1 to T7) that grow lytically on Escherichia coli. [5] Although all seven phages were numbered arbitrarily, phages with odd numbers, or T-odd phages, were later discovered to share morphological and biochemical features that distinguish them from T-even phages. [6]
Teseptimavirus (synonyms T7 phage group, T7-like phages, T7-like viruses, T7likevirus) is a genus of viruses in the order Caudovirales, in the family Autographiviridae, in the subfamily Studiervirinae. Bacteria serve as the natural host, with transmission achieved through passive diffusion.
T7 phage; T7 RNA polymerase; This page was last edited on 12 June 2024, at 18:27 (UTC). Text is available under the Creative Commons Attribution ...
Italiano: Rappresentazione schematica della struttura del fago T7. Español: Representación esquemática de la estructura del fago T7. Français : Représentation schématique de la structure de la phage T7.
In biotechnology applications, T7 RNA polymerase is commonly used to transcribe DNA that has been cloned into vectors that have two (different) phage promoters (e.g., T7 and T3, or T7 and SP6) in opposite orientation. RNA can be selectively synthesized from either strand of the insert DNA with the different polymerases.
Podoviridae was a family of bacteriophage in the order Caudovirales often associated with T-7 like phages. [1] The family and order Caudovirales have now been abolished, with the term podovirus now used to refer to the morphology of viruses in this former family. [2]
(This polymerase originates from the T7 phage, a bacteriophage virus which infects E. coli bacterial cells and is capable of integrating its DNA into the host DNA, as well as overriding its cellular machinery to produce more copies of itself.) T7 RNA polymerase is responsible for beginning transcription at the T7 promoter of the transformed vector.
The two ends of the phage are capped by a few copies of proteins that are important for infection of the host bacteria, and also for assembly of nascent phage particles. These proteins are the products of phage genes 3 and 6 at one end of the phage, and phage genes 7 and 9 at the other end.