Protein (disambiguation)

Protein is a class of biomolecules composed of amino acid chains.

Protein may also refer to:

Biochemistry

 * Antifreeze protein, class of polypeptides produced by certain fish, vertebrates, plants, fungi and bacteria
 * Conjugated protein, protein that functions in interaction with other chemical groups attached by covalent bonds
 * Denatured protein, protein which has lost its functional conformation
 * Matrix protein, structural protein linking the viral envelope with the virus core
 * Protein A, bacterial surface protein that binds antibodies
 * Protein A/G, recombinant protein that binds antibodies
 * Protein C, anticoagulant
 * Protein G, bacterial surface protein that binds antibodies
 * Protein L, bacterial surface protein that binds antibodies
 * Protein S, plasma glycoprotein
 * Protein Z, glycoprotein
 * Protein catabolism, the breakdown of proteins into amino acids and simple derivative compounds
 * Protein complex, group of two or more associated proteins
 * Protein electrophoresis, method of analysing a mixture of proteins by means of gel electrophoresis
 * Protein folding, process by which a protein assumes its characteristic functional shape or tertiary structure
 * Protein isoform, version of a protein with some small differences
 * Protein kinase, enzyme that modifies other proteins by chemically adding phosphate groups to them
 * Protein ligands, atoms, molecules, and ions which can bind to specific sites on proteins
 * Protein microarray, piece of glass on which different molecules of protein have been affixed at separate locations in an ordered manner
 * Protein phosphatase, enzyme that removes phosphate groups that have been attached to amino acid residues of proteins
 * Protein purification, series of processes intended to isolate a single type of protein from a complex mixture
 * Protein sequencing, protein method
 * Protein splicing, intramolecular reaction of a particular protein in which an internal protein segment is removed from a precursor protein
 * Protein structure, unique three-dimensional shape of amino acid chains
 * Protein targeting, mechanism by which a cell transports proteins to the appropriate positions in the cell or outside of it
 * Protein-protein docking, the determination of the molecular structure of complexes formed by two or more proteins
 * Protein-protein interaction, the association of protein molecules and the study of these associations from the perspective of biochemistry
 * RACK protein, receptor responsible for the binding of active forms of the protein kinase C family of enzymes
 * Secretory protein, protein which is secreted by a cell

Bioengineering

 * Protein design, the design of new protein molecules from scratch
 * Protein engineering, application of science, mathematics, and economics to the process of developing useful or valuable proteins

Genetics

 * Fibrous protein, long filamentous protein molecule that forms one of the two main classes of tertiary structure protein
 * Fusion protein, protein created through genetic engineering from two or more proteins
 * Globular protein, one of the two main protein classes
 * Protein expression, subcomponent of gene expression
 * Protein family, group of evolutionarily related proteins
 * Protein methods, techniques used to study proteins
 * Protein subunit, single protein molecule that assembles with other protein molecules to form a multimeric or oligomeric protein
 * Regulatory protein, term used in genetics to describe a protein involved in regulating gene expression

Medicine

 * Tau protein, microtubule-associated protein found in neurons in the brain

Membrane biology

 * G protein, family of proteins involved in second messenger cascades
 * Membrane protein, protein molecule that is attached to, or associated with, the membrane of a cell or an organelle
 * Transmembrane protein, integral membrane protein that spans from the internal to the external surface of the biological membrane
 * Transport protein, protein involved in the movement of a chemical across a biological membrane

Nutrition

 * Protein in nutrition, role of protein in nutrition
 * Soy protein, storage protein held in discrete particles called protein bodies
 * Whey protein, the name for a collection of globular proteins that can be isolated from whey

Other

 * Protein (band), heavy metal band
 * Protein skimmer, device used mostly in saltwater aquaria to remove organic compounds from the water before they break down
 * Proteins is a common abbreviation of the journal Proteins: Structure, Function, and Bioinformatics (formerly "Proteins: Structure, Function, and Genetics", 1986-1995)