protein metabolism

(redirected from Amino acid metabolism)
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pro·tein me·tab·o·lism

decomposition and synthesis of protein in the tissues.
Synonym(s): proteometabolism

protein metabolism

the processes whereby protein foods are used by the body to make tissue proteins, together with the processes of breakdown of tissue proteins in the production of energy. Food proteins are first broken down into amino acids, then absorbed into the bloodstream, and finally used in body cells to form new proteins. Amino acids in excess of the body's needs may be converted by liver enzymes into keto acids and urea. The keto acids may be used as sources of energy via the citric acid cycle, or they may be converted into glucose or fat for storage. Urea is excreted in urine and sweat. Growth hormone, insulin, and androgens stimulate protein formation, and adrenal cortical hormones tend to cause breakdown of body proteins. Diseases affecting protein metabolism include homocystinuria, liver disease, maple sugar urine disease, and phenylketonuria.

pro·tein me·ta·bo·lism

(prō'tēn mĕ-tab'ŏ-lizm)
Decomposition and synthesis of protein in the tissues.

pro·tein me·ta·bo·lism

(prō'tēn mĕ-tab'ŏ-lizm)
Decomposition and synthesis of protein in tissues.
References in periodicals archive ?
Considering protein and amino acid metabolism, results of the present study indicated that the dietary threonine requirement in rainbow trout can be estimated based on PPA.
4 and Table 3), indicating blood stasis induced amino acid metabolism disturbance.
Thus, the amino acid metabolisms are important systems for fuel source during endurance exercise.
New insights into amino acid metabolism, beta-cell function and diabetes.
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Those areas of research will be further investigated along with regulation of energy and amino acid metabolism, impact of dietary mycotoxins and other subjects during the next Advancia International Methionine Seminar.
The authors (Weber State University) describe chemical reactions, solutions and colloids, acids and bases, alkanes, unsaturated hydrocarbons, aldehydes, carbohydrates, proteins, enzymes, and amino acid metabolism.
The other requires specialized lab equipment to measure metabolite levels in leaf tissue samples, because glyphosate inhibits plants' amino acid metabolism in what's known as the shikimic acid pathway.
Alternate cadmium exposure differentially affects amino acid metabolism within the hypethalamus, median eminence, striatum and prefrontal cortex of male rats.
The chapters are on molecular aspects of nutrition; integration of energy metabolism; integration of protein and amino acid metabolism.
MSUD is an inheritable metabolic disease of amino acid metabolism characterized by acidosis, central nervous system symptoms, and urine that may smell sweet like maple syrup.
Researchers wondered if there is a relationship between memory loss and blood homocysteine levels, a by-product of amino acid metabolism and something already linked to vitamin B intake.