Just like people, cells get stressed too. A sudden drop in oxygen, overheating, or toxins can trigger a cascade of molecular changes that lead cells to stop growing, produce stress-protective factors, and form stress granules—proteins and RNA molecules huddled together into membrane-less organelles. Although the function of stress granules remains largely unknown, it is assumed that they contain only RNAs that are not translated into proteins. Now, a study upends this longstanding idea, showing that messenger RNAs (mRNAs) within stress granules can indeed make proteins.
Click here for original story, Thinking afresh about how cells respond to stress
Source: Phys.org