Atomistic model of the protein villin headpiece. Color and the size of ellipsoids capture the local dynamics of individual atoms. (Copyright: Bojan Zagrovic)
Computational biologists show that averaging is not always a good thing when it comes to analyzing protein crystal structures. A recent publication shows that protein structures could be more dynamic and heterogeneous than current methods of X-ray analysis suggest. When averaging is good and when it's not - Usually averaging is a good thing that can make life a lot easier. For example, when you eat out with a group of friends and it comes to paying. If everyone had a meal and a drink and you split the bill total by the number of people, everyone will pay pretty close to what they would have paid for their individual meal and drink. However, if some people had a starter, a steak for main, a dessert and champagne while you had spaghetti and a soft drink, you will feel pretty much ripped off when you pay the average of 45¤ for your meal. In science, averaging is a good thing too - researchers often repeat their experiment several times and average the results.
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