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The gene for Klebsiella bacteriophage K11 RNA polymerase: Sequence and comparison with the homologous genes of phages T7, T3, and SP6

✍ Scribed by Dietz, Antje ;Weisser, Hans-Joachim ;K�ssel, Hans ;Hausmann, Rudolf


Publisher
Springer
Year
1990
Tongue
English
Weight
469 KB
Volume
221
Category
Article
ISSN
0026-8925

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✦ Synopsis


We determined the nucleotide sequence of gene 1 of Klebsiella phage K11, which is a member of the T7 group of phages. The largest open reading frame corresponds to a polypeptide with 906 amino acids and a molecular weight of 100,383 daltons. The deduced amino acid sequence of this polypeptide shows 71% homology to the T7 RNA polymerase (the product of T7 gene 1), 72% homology to the T3 RNA polymerase and 27% homology to the SP6 RNA polymerase. Divergent evolution was clearly most pronounced in the amino-terminal portion.