How would you make transcription and translation work when you no longer have a nucleus? Bacteria have an interesting answer. Attenuation, or dampening, of the trp operon is made possible by the fact ...

The answer lies in differential gene expression – the combination of genes that are turned on (expressed) or turned off (repressed) in particular cells – this is what makes each cell unique. Gene ...

Cells are, at a fundamental level, protein-production facilities. So naturally, when researchers need to make some particular protein, they should let the cells do the work for them. But living cells ...

In bacteria, transcription and translation are coupled in time and space. Two studies now show that transcription and translation are physically linked, which may be important for regulating bacterial ...

Researchers synthesize recombinant proteins in cell-free extracts to verify the identity of cloned genes, to study protein-protein, protein-nucleic acid, and protein-drug interactions, and to carry ...

Believe it or not, all of the cells within a multicellular organism (excluding red blood cells and gametes) contain exactly the same DNA. In which case, why is a heart composed of cardiomyocytes? Or ...