B, trans-activation activity of the TINY protein. The vector was also transformed as a negative control. The activities of firefly luciferase and Renilla luciferase were designated as F-LUC and R-LUC, respectively. Trans-activation activity was determined by the value of F-LUC/R-LUC, and the...
which relies on other, “helper” viruses to complete its life cycle. Satellite viruses lean on their helpers either when building their capsids – the protein shell of a virus – or when replicating their DNA, both ...
When they studied the cells that detect sourness the researchers found a protein attached to the cells that is important to the process of tasting carbon dioxide. When carbon dioxide comes into contact with this protein the protein knocks off particles called protons. These protons(质子) in turn ...
Tiny little shutters as small as the width of a human hair are a key component in the James Webb Space Telescope's ability to see huge distances in the cosmos, and they have now arrived at the European Space Agency. Those little "shutters" are actually called "microshutters" and they are...
Like AIDS, flu is caused by a virus, a tiny packet of genes in a protein coat so simple that most biologists don’t【1】viruses truly “alive” until they invade(入侵)a host cell. Then they hijack the cell and use its energy to【2】out 100,000 to 1 million copies of themselves in...
Poxvirus genomes encode a secreted, soluble protein that preferentially inhibits beta chemokine activity yet lacks sequence homology to known chemokine rec... Poxvirus genomes encode several proteins which inhibit specific elements of the host immune response. We show the "35K" virulence gene in vario...