 By now, I've repeated some of the stuff we had in the very first lectures of Finkelstein, but on a slightly higher level, and I've gone into a lot more details of chapters 9 and 10, speaking about helices and coils. It's important that you master these properties now, because from this lecture, I'm going to assume that you know it back and forth. To aid you in that, you have the usual study questions, ranging from chirality of amino acids up to prions. Some of this stuff is present in the book, others you're going to need to get from this lecture. I'm looking forward to the seminar in Stockholm, where at least some of you are going to get the chance to chat about this. But now it's time to carry on to lecture 6, where we're going to look more into simulations.