Английская Википедия:Alloisoleucine
Шаблон:Chembox Alloisoleucine is an amino acid with the formula Шаблон:Chem2. It exists as two enantiomers, of which the L derivative occurs naturally. L-Alloisoleucine occurs in healthy serum in only trace amounts, except for individuals suffering from maple syrup urine disease.[1]
Structure
Together with valine, leucine, and isoleucine, alloisoleucine is classified as a branched chain amino acid (BCAA). It is the rarist of the four.
L-Alloisoleucine is a diastereomer of the proteogenic amino acid L-isoleucine. The stereochemistry of the isobutyl group differs for L-alloisoleucine and L-isoleucine.
| Файл:L-Isoleucin - L-Isoleucine.svg Файл:D-isoleucine.svg |
| Шаблон:Sm-isoleucine (2S,3S) and Шаблон:Sm-isoleucine (2R,3R) |
| Файл:L-alloisoleucine.svg Файл:D-alloisoleucine.svg |
| Шаблон:Sm-alloisoleucine (2S,3R) and Шаблон:Sm-alloisoleucine (2R,3S) |
Role in biosynthesis
L-allo-isoleucine is a precursor to coronamic acid, which is a constituent of the phytotoxin coronatine, produced by Pseudomonas syringae.[2]
References
