Protein (disambiguation)

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

Protein may also refer to:


  • 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


  • 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


  • 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


  • 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


  • 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


See also