Re:Chromatin (Score 2, Interesting)

That is a completely different type of "folding". Protein folding is incredibly complex: "it takes about a day to simulate a nanosecond (1/1,000,000,000 of a second). Unfortunately, proteins fold on the tens of microsecond timescale (10,000 nanoseconds). Thus, it would take 10,000 CPU days to simulate folding -- i.e. it would take 30 CPU years!" Chromatin doesn't "fold" DNA, it just bundles it into compact fibers during mitosis/meiosis. The purpose of chromatin is to bundle DNA into chromosomes and also to regulate which genes are expressed, which is fairly well understood and predictable, while the folding of proteins is incredibly hard to predict.