English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The bacteriophage T4 dexA gene product is required during infection of Escherichia coli strains carrying a mutation in the optA gene. We purified the DexA protein from cells which overproduced the protein. The protein was assayed for nuclease activity on synthetic di- and oligonucleotide substrates of known sequence and secondary structure. Sequence and structure significantly affected nuclease activity. The properties of the enzyme may explain the requirement for the DexA protein during infection of optA mutant hosts.

Effect of DNA sequence and structure on nuclease activity of the DexA protein of bacteriophage T4