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

A transcriptional-interference selection was performed to identify genes of Anabaena sp. strain PCC 7120 that encode DNA-binding proteins able to bind to the rbcL promoter. Unexpectedly, the selection yielded the previously identified sigA gene, which encodes the principal sigma factor. Protein extracts from Escherichia coli containing the sigA gene bound the rbcL promoter fragment in mobility shift assays, and competition experiments indicated binding to rbcL and glnA but not xisA or nifH upstream regions.

Isolation of the Anabaena sp. strain PCC 7120 sigA gene in a transcriptional-interference selection