This diagram depicts the chemical structure of pyrimidine, a six-membered aromatic ring with two nitrogen atoms at positions 1 and 3 (highlighted in blue). The remaining positions are occupied by ...

Researchers discovered that embryos must clear maternal mRNAs to develop properly. When cleanup fails, it causes aberrant ...

Could yeast and humans be any more different? Going by looks alone, probably not. But peering into our genomes reveals ...

We’re celebrating 180 years of Scientific American. Explore our legacy of discovery and look ahead to the future. In 1957, just four years after Francis Crick and other scientists solved the riddle of ...

In this study, led by Nahid Shahabadi from Razi University in Kermanshah, researchers developed an environmentally friendly ...

Later in HIV's replication cycle, integrase interacts with viral RNA to help the virus spread and infect new cells. Taking on these two distinct roles—first with DNA, then RNA—requires changes to ...

DNA and RNA methylation, initially thought to operate as distinct pathways, have been shown to interact closely, shifting our understanding of gene regulation. A team of researchers from the ...

A chemical modification in the HIV-1 RNA genome whose function has been a matter of scientific debate is now confirmed to be key to the virus's ability to survive and thrive after infecting host cells ...