isoleucine

enUK

isoleucine

(ī'səlo͞o`sēn), organic compound, one of the 20 amino acidsamino acid
, any one of a class of simple organic compounds containing carbon, hydrogen, oxygen, nitrogen, and in certain cases sulfur. These compounds are the building blocks of proteins.
..... Click the link for more information. commonly found in animal proteins. Only the l-stereoisomer appears in mammalian protein. It is one of several essential amino acids needed in the diet; human beings cannot synthesize it from simpler metabolites. Young adults need about 20 mg of this amino acid per day per kg (or about 8 mg per lb) of body weight. Isoleucine can be degraded into simpler compounds by the enzymes of the body. In a rare, inherited disorder called maple syrup urine disease, a nonfunctional enzyme in the common pathway of isoleucine, leucineleucine
, organic compund, one of the 20 amino acids commonly found in animal proteins. Only the l-stereooisomer appears in mammalian protein.
..... Click the link for more information. , and valinevaline
, organic compound, one of the 22 α-amino acids commonly found in animal proteins. Only the l-stereoisomer appears in mammalian protein.
..... Click the link for more information. degradation causes the buildup of certain metabolites in the urine, resulting in the characteristic odor from which the disease derives its name. Once isoleucine is incorporated into protein, it contributes to the structure of protein by the tendency of its side chain (composed only of carbon and hydrogen) to seek an environment consisting of similar side chains, like those of leucine, valine, tryptophantryptophan
, organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l-stereoisomer appears in mammalian protein.
..... Click the link for more information. , and phenylalaninephenylalanine
, organic compound, one of the 22 α-amino acids commonly found in animal proteins. Only the l-stereoisomer appears in mammalian protein.
..... Click the link for more information. , and to exclude water. This hydrophobic property is analogous to that which prevents oil from dissolving in water. The tendency for these hydrophobic residues to associate with one another is evidently quite important in determining the bending and folding (tertiary structure) of the peptide chain characteristically seen in every protein. Isoleucine was isolated from beet sugar molasses in 1904.

Isoleucine

α-amino-β-methylvaleric acid, C₂H₅CH(CH₃)-CH(NH₂)COOH, an amino acid discovered by F. Ehrlich (1904), among the decomposition products of fibrin protein; one of the group of branched-carbon-chain monoamino aliphatic monocarboxylic acids.

Isoleucine is present in proteins in only small amounts, but it is an essential amino acid for man, animals, and many microorganisms and must be introduced with food. The daily human requirement of isoleucine is about 1.5 -2 g.

isoleucine

[¦ī·sō′lü‚sēn] (biochemistry) C₆H₁₃O₂ An essential monocarboxylic amino acid occurring in most dietary proteins.

isoleucine

enUK

isoleucine

[i″so-lu´sēn] a naturally occurring amino acid produced by hydrolysis of fibrin and other proteins, one of the essential amino acids, necessary for optimal infant growth and for nitrogen equilibrium in adults.

i·so·leu·cine (I),

(ī'sō-lū'sēn), 2-amino-3-methylvaleric acid; the l-stereoisomer is found in almost all proteins; an isomer of leucine and, like it, a dietary essential amino acid.

isoleucine

(ī′sə-lo͞o′sēn′)n. An essential amino acid, C₆H₁₃NO₂, that is isomeric with leucine.

i·so·leu·cine

(I) (ī'sō-lū'sēn) An l-amino acid found in almost all proteins; an isomer of leucine and, like it, a dietary essential amino acid.

isoleucine

An essential AMINO ACID.

Fig. 198 Isoleucine . Molecular structure.

isoleucine (I, Ile)

one of 20 AMINO ACIDS common in proteins, that is nonpolar in structure and insoluble in water. The ISEOELECTRIC POINT of isoleucine is 6.0.

iso·leu·cine

(I) (ī'sō-lū'sēn) An l-amino acid found in almost all proteins; an isomer of leucine and, like it, a dietary essential amino acid.

isoleucine

i·so·leu·cine

isoleucine

i•so•leu•cine

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isoleucine

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Isoleucine

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isoleucine

i·so·leu·cine (I),

isoleucine

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isoleucine (I, Ile)

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Words related to isoleucine

noun an essential amino acid found in proteins

Related Words