This book's volumes 7 and 8 focus on polyamides and complex proteinaceous materials synthesized by bacteria and eukaryotic organisms, describing all aspects of their biosynthesis and metabolism as well as the production and isolation. The topics included are: poly(g-d-glutamate), cyanophycin, modifications of proteins, sweet-tasting proteins, motor proteins, enzymes for technical applications, self-assembling proteins, cell membranes, feathers, elastic proteins, silk proteins, adhesive proteins, protein composites, wool, collagens and gelatines.