New research suggests a possible explanation for the organization of operons, jointly controlled clusters of genes that evolved in bacterial chromosomes. Operons, which are found in the chromosomes of ...

The 92-year-old bacterial geneticist who helped pioneer the study of gene regulation has passed away. A series of rodent experiments showed that even with abundant food and water, personal space is ...

Bacterial genetics is based on the ability to select for rare mutants among large populations (1 in >10 10) on the basis of the ability of the bacteria to survive lethal challenges, grow in the ...

Last week I finally addressed promoters and gave a bit of background on the lac operon. Looking back, I feel that I didn't give the topic of operons adequate treatment. They are a very crucial aspect ...

Researchers turned programmable proteins into a novel genetic tool, potentially enabling tighter control of gene expression. LacI is a tetrameric protein, using two dimers to bind two specific, ...