ketogenic amino acid


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Related to ketogenic amino acid: TCA cycle

ketogenic amino acid

[-jen′ik]
an amino acid whose carbon skeleton serves as a precursor for ketone bodies.

amino acid

any one of a class of organic compounds containing the amino (NH2) and the carboxyl (COOH) group, occurring naturally in plant and animal tissues and forming the chief constituents of protein.
In certain inherited or acquired disorders of metabolism, specific amino acids accumulate in the blood (aminoacidemia) or are excreted in excess in the urine (aminoaciduria). Urinary amino acid levels are increased in liver disease, muscular dystrophies, phenylketonuria (PKU), lead poisoning and folic acid deficiency.

acidic amino acid a's
those containing carboxylic acids in their side chains, e.g. aspartate and glutamate.
basic amino acid a's
amino acids containing side chains that accept protons at physiological pH, e.g. lysine, arginine, and histidine.
branched-chain amino acid a's
methyl branched amino acids.
amino acid dehydratase
an enzyme which contributes significantly to the total production of ammonia in the body.
essential amino acid a's
the amino acids which animals must ingest with their diets and which vary between species and physiological status. The commonly accepted list of essential amino acids includes arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine. Birds also require glycine and cats require taurine in their diets.
free amino acid a's
amino acids free in the blood, providing an available source for all tissues for catabolism.
glucogenic amino acid
an amino acid which yields either pyruvate or oxaloacetate and glucose synthesis can occur.
ketogenic amino acid
an amino acid whose carbon skeleton yields ketone bodies; leucine is an example.
amino acid nutritional deficiency
the effects may be the same as a deficiency of total protein, reduced growth and production, reduced food intake, loss of body weight, but deficiencies of individual amino acids may have specific effects, e.g. taurine in cats. See also methionine, lysine, arginine.
amino acid poisoning
methionine has caused growth retardation and cervical paralysis in turkey poults.
amino acid ratio
a decreased ratio of branched chain to aromatic amino acids in plasma can be used to detect chronic liver disease or portacaval shunts in dogs.
amino acid sequencer
automatic machine for determining the amino acid sequence of a protein.
sulfur amino acid a's
essential amino acids containing sulfur, cysteine, cystine and methionine.
amino acid transamidation
amino acid transamination
urinary amino acid a's
analysis may be used to detect inherited disorders of metabolism, such as cystinuria, tyrosinemia and citrullinemia.