English > protein: 1 sense > noun 1, substance| Meaning | Any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes. |
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| Example | "a diet high in protein" |
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| Narrower | actomyosin | A protein complex in muscle fibers |
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| aleurone | granular protein in outermost layer of endosperm of many seeds or cereal grains |
| amyloid | (pathology) a waxy translucent complex protein resembling starch that results from degeneration of tissue |
| antibody | Any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response |
| apoenzyme | A protein that combines with a coenzyme to form an active enzyme |
| capsid | The outer covering of protein surrounding the nucleic acid of a virus |
| conjugated protein, compound protein | A protein complex combining amino acids with other substances |
| cytokine | Any of various protein molecules secreted by cells of the immune system that serve to regulate the immune system |
| enzyme | Any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions |
| ferritin | A protein containing 20% iron that is found in the intestines and liver and spleen |
| fibrin | A white insoluble fibrous protein formed by the action of thrombin on fibrinogen when blood clots |
| filaggrin | The main protein of the keratohyalin granules |
| gluten | A protein substance that remains when starch is removed from cereal grains |
| growth factor | A protein that is involved in cell differentiation and growth |
| haptoglobin | A protein in plasma that binds free hemoglobin and removes it (as from wounds) |
| iodoprotein, iodinated protein | A protein that contains iodine |
| nucleoprotein | Any of several substances found in the nuclei of all living cells |
| opsin | retinal protein formed by the action of light on rhodopsin |
| phosphoprotein | Containing chemically bound phosphoric acid |
| plasma protein | Any of the proteins in blood plasma |
| prostate specific antigen, PSA | A protein manufactured exclusively by the prostate gland |
| proteome | The full complement of proteins produced by a particular genome |
| recombinant protein | A protein derived from recombinant DNA |
| simple protein | A protein that yields only amino acids when hydrolyzed |
| Broader | macromolecule, supermolecule | Any very large complex molecule |
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| Substance of | egg, eggs | oval reproductive body of a fowl (especially a hen) used as food |
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| legume | The seedpod of a leguminous plant (such as peas or beans or lentils) |
| meat | The flesh of animals (including fishes and birds and snails) used as food |
| milk | A white nutritious liquid / liquid secreted by mammals and used as food by human beings |
| Substances | amino acid, aminoalkanoic acid | organic compounds containing an amino group and a carboxylic acid group |
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| polypeptide | A peptide containing 10 to more than 100 amino acids |
| Spanish | proteina, proteína, proteínas |
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| Catalan | proteïna |
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| Adjectives | proteinaceous | relating to or of the nature of protein |
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