Catálogo de publicaciones - revistas

<jats:title>CRISPR-Cas captures invading RNA</jats:title> <jats:p> The CRISPR (clustered regularly interspaced short palindromic repeat) system provides bacteria with an adaptive immune response. DNA captured from viruses and plasmids by CRISPR-associated protein 1 (Cas1) is used by bacteria to target the invaders' for destruction. Silas <jats:italic>et al.</jats:italic> discover that certain classes of the <jats:italic>Cas1</jats:italic> gene are fused to a reverse transcriptase gene ( <jats:italic>RT-Cas1</jats:italic> ) (see the Perspective by Sontheimer and Marraffini). These RT-Cas1 proteins are able to capture and directly incorporate both DNA and RNA into CRISPR loci. RT-Cas1 systems could be effective against parasitic RNA species, or even to modulate bacterial gene expression. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" related-article-type="in-this-issue" xlink:href="10.1126/science.aad4234">10.1126/science.aad4234</jats:related-article> ; see also p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6276" page="920" related-article-type="in-this-issue" vol="351" xlink:href="10.1126/science.aaf2851">920</jats:related-article> </jats:p>

<jats:p>This month marks the 50th anniversary of the Korea Institute of Science and Technology (KIST). Remarkably, half a century ago, South Korea was one of the poorest countries in the world, recovering from the Korean War and facing serious economic difficulties. Today, it is a member of the G20 major global economies with a market value that ranks 11th in the world. Investment in science and technology as a development strategy is what made South Korea one of the world's fastest-growing economies. Now, as the nation promotes its new Creative Economy plan, KIST moves into its next 50 years, ensuring that science and technology remain the foundation of this new era of innovation.</jats:p>

<jats:p>A roundup of weekly science policy and related news.</jats:p>

<jats:p>DOE considers wish list of upgrades to x-ray and neutron sources.</jats:p>