Protein Proteins are large biomolecules, or macromolecules, consisting of one or long chains of amino acid residues.Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting molecules from one location to another. BiologyKids Cell Structure Membrane Proteins Membrane Proteins Bumpy Surfaces We have a page on the basic structure of the cell membrane and other membranes within the cell They are basic bilayers made of Membrane Proteins of Known Structure Membrane embedded structures now available Mark Sansom s lab at Oxford has created the MemProtMD database of all known transmembrane proteins embedded in lipid membranes, described in Stansfeld et al Structure Links to the structures are now included in mpstruc Click on the icon, and you will be taken to the appropriate entry in MemProtMD. ChemKids Biochemistry Proteins We can finally cover the quaternary structure of proteins Quaternary means four This is the fourth phase in the creation of a protein In the quaternary structure, several amino acid chains fromthe tertiary structures fold together in a blob. Protein structure Protein structure is the three dimensional arrangement of atoms in an amino acid chain molecule Proteins are polymers specifically polypeptides formed from sequences of amino acids, the monomers of the polymer A single amino acid monomer may also be called a residue indicating a repeating unit of a polymer Proteins form by amino acids undergoing condensation reactions, in Proteins bozemanscience Paul Andersen explains the structure and importance of proteins He describes how proteins are created from amino acids connected by dehydration synthesis. The Structure and Action of Proteins THE STRUCTURE AND ACTION OF PROTEINS by Dickerson and Geise is a modest sized textbook on protein biochemistry The book is generously illustrated by professional quality drawings of polypeptides, taking various three dimensional conformations. Introduction to Proteins Structure, Function, and Motion This is the most interesting to read and complete text I have found for senior undergraduate or early graduate level coverage of protein structure and function, and a great reference book to have on hand. Hydrolysis Chemistry Encyclopedia structure, reaction Hydrolysis literally means reaction with water It is a chemical process in which a molecule is cleaved into two parts by the addition of a molecule of water. Effects of heat on meat proteins Implications on Globular and fibrous proteins are compared with regard to structural behaviour on heating, where the former expands and the latter contracts The meat protein composition and structure is briefly described.