explainer

I took my first immunology class at UCSD in the spring of 2004. I've always been interested in signaling (how cells take information from the outside and translate that to the inside) but the subject matter of this class was set to disappoint - in terms of signaling, it more or less stopped at the outer membrane of cells. Even though looking back, I can see now that a subject as vast as immunology has to cut some corners in a 10 week course, early on that quarter I was a bit frustrated. But just before the first midterm, we started learning about one of the most bizarre behaviors of cells…