Molecular basis for the interaction between Saccharomyces cerevisiae Rtt103 and the Rat1-Rai1 complex.

Summary: Imagine your body is a busy factory making important messages (called RNA). When a message is finished, the factory needs a "stop" sign so it doesn't keep running forever. In yeast cells, a tiny team of machines works together to hit the brakes. Scientists just took a super close-up picture of this team using a powerful microscope. They found exactly how one part of the team, called Rtt103, grabs onto the rest of the machines using a special molecular hook. When scientists broke this hook, the whole team fell apart! This discovery helps us understand exactly how cells perfectly control their message-making factories.