Meaning of PROTEIN
| Pronunciation: | | 'prowteen
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 WordNet Dictionary |
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| | Definition: | | [n] 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; "a diet high in protein" |
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| | See Also: | | actomyosin, aleurone, amino acid, aminoalkanoic acid, amyloid, apoenzyme, capsid, compound protein, conjugated protein, cytokine, egg, eggs, enzyme, ferritin, fibrin, gluten, growth factor, hatoglobin, iodinated protein, iodoprotein, legume, macromolecule, meat, milk, nucleoprotein, opsin, phosphoprotein, plasma protein, polypeptide, prostate specific antigen, proteome, PSA, simple protein, supermolecule | |
| Webster's 1913 Dictionary |
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\Pro"te*in\, n. (Physiol. Chem.)
In chemical analysis, the total nitrogenous material in
vegetable or animal substances, obtained by multiplying the
total nitrogen found by a factor, usually 6.25, assuming most
proteids to contain approximately 16 per cent of nitrogen.
\Pro"te*in\, n. [Gr. prw^tos first: cf. prwtei^on the
first place.] (Physiol. Chem.)
A body now known as alkali albumin, but originally considered
to be the basis of all albuminous substances, whence its
name.
{Protein crystal}. (Bot.) See {Crystalloid}, n., 2.
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| Medical Dictionary |
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| | Definition: | | A molecule made up of amino acids that are needed for the body to function properly. Proteins are the basis of body structures such as skin and hair and of substances such as enzymes, cytokines, and antibodies. |
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| Biology Dictionary |
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| | Definition: | | A large molecule composed of one or more chains of amino acids in a specific order; the order is determined by the base sequence of nucleotides in the gene coding for the protein. Proteins are required for the structure, function, and regulation of the bodys cells, tissues, and organs, and each protein has unique functions. Examples are hormones, enzymes, and antibodies. |
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| Glossary |
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- A polymer of amino acids linked via peptide bonds and which may be composed of two or more polypeptide chains. (See Polypeptide)
- A large molecule composed of one or more chains of amino acids in a specific order; the order is determined by the base sequence of nucleotides in the gene that codes for the protein. Proteins are required for the structure, function, and regulation of the body's cells, tissues, and organs; and each protein has unique functions. Examples are hormones, enzymes, and antibodies.
- a long chain of amino acids joined together by peptide bonds (a polypeptide chain).
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