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Phage lambda beta protein, a component of general recombination, is associated with host ribosomal S1 protein

Muniyappa, K and Mythili, E (1993) Phage lambda beta protein, a component of general recombination, is associated with host ribosomal S1 protein. In: Biochemistry & Molecular Biology International, 31 (1). pp. 1-11.

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Abstract

We have purified phage lambda beta protein produced by a recombinant plasmid carrying bet gene and confirm that it forms a complex with a protein of relative molecular mass 70 kDa. Therefore, beta protein, a component of general genetic recombination, is associated with two functionally diverse complexes; one containing exonuclease and the other 70 kDa protein. Using a number of independent methods, we show that 70 kDa protein is the ribosomal S1 protein of E. coli. Further, the association of 70 kDa protein with beta protein is biologically significant, as the former inhibits joining of the terminal ends of lambda chromosome and renaturation of complementary single stranded DNA promoted by the latter. More importantly, these findings initiate an understanding of an important mode of host- virus interaction in general with specific implication(s) in homologous genetic recombination.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to National Center for Biotechnology Information.
Department/Centre: Division of Biological Sciences > Biochemistry
Date Deposited: 19 Feb 2010 06:03
Last Modified: 19 Feb 2010 06:03
URI: http://eprints.iisc.ernet.in/id/eprint/25669

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