How poxviruses multiply

The last case of smallpox worldwide occurred in Somalia in October 1977. In 1980, the World Health Organization (WHO) declared the eradication of the smallpox. According to official sources, the virus continues to exist today ...

New breakthrough in research using insect exoskeletons

Research into insect species can benefit from genetic studies. However, genetic samples can often be difficult to collect in a non-invasive manner, especially when the insects are only found in a particular location or are ...

New discovery shows human cells can write RNA sequences into DNA

Cells contain machinery that duplicates DNA into a new set that goes into a newly formed cell. That same class of machines, called polymerases, also build RNA messages, which are like notes copied from the central DNA repository ...

A protein with a dual role: Both repair and mutation

Using a specialized protein, all bacteria are capable of rapidly and effectively repairing damage to their DNA from UV. However, this mutation frequency decline (Mfd) protein plays another role and causes mutations. A team1 ...

An international study reveals how the 'guardian' of the genome works

Scientists from the Genomic Integrity and Structural Biology Group led by Rafael Fernández-Leiro at the Spanish National Cancer Research Centre (CNIO) have discovered how certain proteins ensure the repair of errors introduced ...

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