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

Neither bacteriophage T5+ nor its EcoRI-sensitive ris mutants became modified during growth on an EcoRI-modifying host. For this reason, the rare ris plaques able to grow on the EcoRI-modifying host were always due to revertant phage rather than to modified ris mutants. The ris mutations resulted in the creation of new EcoRI cleavage sites in the terminally repetitious first-step transfer DNA, and analysis of T5 ris revertants showed loss of these sites and restoration of the wild-type restriction pattern. Natural EcoRI sites present in the second-step transfer DNA were never lost in T5ris revertants, indicating that these are irrelevant to in vivo restriction and are protected during growth on the restricting host.

Restriction insensitivity in bacteriophage T5. II. Lack of EcoRI modification in T5+ and T5ris mutants