Tag Archives: molecules

Proteins Are Dynamic The static way that protein structures are usually portrayed may leave the false impression that proteins have fixed and rigid structures. In fact, proteins are flexible and rapidly fluctuating molecules whose structural mobilities are functionally significant. Groups ranging in size from individual side chains to entire domains …

Certain biochemical features are common to all organisms: the way hereditary information is encoded and expressed, for example, and the way biological molecules are built and broken down for energy. The underlying genetic and bio-chemical unity of modern organisms implies that they are descended from a single ancestor. Although it …