Related topics: cancer cells

Biologists uncover a novel cellular proofreading mechanism

(PhysOrg.com) -- To make proteins, cells assemble long chains of amino acids, based on genetic instructions from DNA. That construction takes place in a tiny cellular structure called a ribosome, to which amino acids are ...

Researchers suspend, image single DNA molecules

(PhysOrg.com) -- Studying chemical modifications in the chromosomes of cells is akin to searching for changes in coiled spaghetti. Scientists at Cornell have figured out how to stretch out tangled strands of DNA from chromosomes, ...

Different paths to drug resistance in Leishmania

Two remarkable discoveries were today revealed by researchers into genome analysis of Leishmania parasites. These results uncovered a surprising level of variation at the genome structure level.

Getting to know bacteria with 'multiple personalities'

(PhysOrg.com) -- Cyanobacteria, or blue-green algae, have been the subject of decades of debate over exactly how they should be classified. While they reproduce and share DNA with their bacterial cousins, they are the only ...

Origami: Not just for paper anymore

While the primary job of DNA in cells is to carry genetic information from one generation to the next, some scientists also see the highly stable and programmable molecule as an ideal building material for nanoscale structures ...

Bacteria shed light on toxic medicine

A new method developed in Wageningen should facilitate the early testing of drugs, reducing costs and the need for animal testing.

Paving the way for new single-molecule electrochemical switches

The degree of twisting of natural helical structures, such as the DNA double-helix, plays an essential role in many important biological functions. Because of their twisted architecture, artificial helices can facilitate ...

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