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Effect of salt on the transcription of T7 DNA by RNA polymerase from T4 phage-infected E.coli.

Authors
Type
Published Article
Journal
Nucleic acids research
Publication Date
Volume
4
Issue
4
Pages
877–882
Identifiers
PMID: 325528
Source
Medline

Abstract

Transcription of T7 DNA by T4 core enzyme with host sigma is more sensitive to KCI than that by host core enzyme with host sigma. When salt is added after initiation of RNA chains has occurred, it is not inhibitory. Salt affects the binding of T4 enzyme to T7 DNA to the same degree as the binding of host enzyme. Active preinitiation complex formation is inhibited more by salt with the T4 enzyme and the inhibition is temperature-dependent.

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