While CRISPR may be the most notable genetic technology to emerge from microbes, many of the tools researchers use to control genes and their products are borrowed from bacterial systems. One of these ...

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 ...

This is a preview. Log in through your library . Abstract We have cloned a DNA fragment harboring the genes for ribosomal proteins L2, L4, and L23 on a plasmid vector that contains a lac operator and ...

For an E. coli bacterium, 300 is its lucky number. That’s about how many protein molecules it takes to make a life-changing shift in its diet preference, according to new research. But this shift ...

Mutants of E. coli K12 with deletions of the β -galactosidase gene (lacZ) can reacquire the ability to hydrolyze β -galactosides during prolonged intense selection for growth on lactose. Full lactose ...