Introduction to Protein Structure gives an up-to-date account of the principles of protein structure, with examples of key proteins in their biological context generously illustrated in full colour to illuminate the structural principles described in the text. The first few chapters introduces the general principles of protein structure both for novices and for non-specialists needing a primer. Subsequent chapters use specific examples of proteins to show how they fulfil a wide variety of biological functions. The book ends with chapters on the experimental approach to determining and predicting protein structure, as well as engineering new proteins to modify their functions.