Protein or the physical region of the protein that participates in chemical catalysis. In solution proteins also undergo variation in structure through thermal vibration and the collision with other molecules. Proteins can be informally divided into three main classes, which correlate with typical tertiary structures: globular proteins, fibrous proteins, and membrane proteins. Almost all globular proteins are soluble and many are enzymes. Fibrous proteins are often structural, such as collagen, the major component of connective tissue, or keratin, the protein component of hair and nails. Membrane proteins often serve as receptors or provide channels for polar or charged molecules to pass
In the Skin of a Lion "I will let my hair grow long for your sake, I will wander through the wilderness in the skin of a lion," echoing the theme of converging voices re-telling history. The book was nominated for the Governor General's Award for English Language Fiction in 1987. Ondaatje's later and more famous novel "The English Patient" is, in part, a sequel to "In the Skin of a Lion", continuing the characters of Hana and Caravaggio, as well as revealing the fate of this novel's main character, Patrick Lewis. The first chapter, "Little Seeds," describes the growing years of the main character, Patrick