phosphoprotein

phos·pho·pro·tein

P0258300 (fŏs′fō-prō′tēn′, -tē-ĭn)n. Any of a group of proteins, such as casein, containing chemically bound phosphoric acid.

phosphoprotein

(ˌfɒsfəˈprəʊtiːn) n (Biochemistry) any of a group of conjugated proteins, esp casein, in which the protein molecule is bound to phosphoric acid

phos•pho•pro•tein

(ˌfɒs foʊˈproʊ tin, -ti ɪn)

n. a protein, as casein or ovalbumin, in which one or more hydroxyl groups of serine, threonine, or tyrosine are hydroxylated. [1905–10]

Thesaurus

Noun

phosphoprotein - containing chemically bound phosphoric acidprotein - 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"casein - a milk protein used in making e.g. plastics and adhesives

Phosphoprotein

any of the conjugated proteins containing a phosphoryl group bonded to the amino acid residues of the polypeptide chain. Usually, the phosphoryl group (—PO₃^2–) is bonded to the phosphoprotein molecule through residues of the amino acids serine and threonine; in the mitochondria in animal tissues, phosphoproteins have been found in which the phosphoryl group is bonded to the protein through the imidazole ring of histidine. The transfer of the phosphoryl residue to the protein is catalyzed by the enzyme protein kinase, one of the phosphotransferases; here, adenosine triphosphate is the phosphate donor. Alkalies bring about a nonenzymatic separation of the phosphoryl group; in the presence of acids, however, phosphoproteins are relatively stable.

Phosphoproteins include casein, a basic protein in milk, and ovalbumin and vitellin, which are present in eggs. Also included are phosphorylated modifications of histones, RNA polymerases, certain phosphotransferases, and phosphatases. Phosphoproteins are very common in living organisms, where they figure in metabolism, in the regulation of the activity of cell nuclei, in ion transport, and in oxidation processes in mitochondria.

REFERENCE

Lisovskaia, N. P., and N. B. Livanova. Fosfoproteiny. Moscow, 1960.

V. V. ZUEVSKII

phosphoprotein

[fos″fo-pro´tēn] a protein to which one or more phosphate groups are attached at serine or threonine (rarely tyrosine) residues.

phos·pho·pro·tein

(fos'fō-prō'tēn), A protein containing phosphoryl groups attached directly to the side chains of some of its constituent amino acids, usually to the hydroxyl group of an l-seryl residue or an l-threonyl residue; for example, casein, vitellin, ovalbumin.

phosphoprotein

(fŏs′fō-prō′tēn′, -tē-ĭn)n. Any of a group of proteins, such as casein, containing chemically bound phosphoric acid.

phos·pho·pro·tein

(fos'fō-prō'tēn) A protein containing phosphoryl groups attached directly to the side chains of some of its constituent amino acids.

phos·pho·pro·tein

(fos'fō-prō'tēn) A protein containing phosphoryl groups attached directly to the side chains of some of its constituent amino acids.

phosphoprotein

phos·pho·pro·tein

phosphoprotein

phos•pho•pro•tein

Phosphoprotein

Phosphoprotein

REFERENCE

phosphoprotein

phosphoprotein

phos·pho·pro·tein

phosphoprotein

phos·pho·pro·tein

phos·pho·pro·tein

phosphoprotein

Words related to phosphoprotein

noun containing chemically bound phosphoric acid

Related Words