Isoleucine
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| Isoleucine |
Chemical structure of L-isoleucine</td></tr><tr><td style="background-color: #FFFFFF; vertical-align: top; white-space: nowrap;">Chemical formula </td><td style="background-color: #FFFFFF;">C6H13NO2 </td></tr><tr><td style="background-color: #FFFFFF; vertical-align: bottom; white-space: nowrap;">Molar mass</td>
<td style="background-color: #FFFFFF;">131.18 g mol−1</td></tr><tr><td style="background-color: #FFFFFF; vertical-align: top; white-space: nowrap; width: 30%;">Systematic name</td>
<td style="background-color: #FFFFFF;">(2S,3S)-2-amino-
3-methylpentanoic acid</td></tr><tr><td align="center" style="background-color: #F8EABA;" colspan="2">Complete data</td></tr></table></div>
Isoleucine is one of the 20 basic amino acids, and forms part of the structure of almost all proteins. It is coded for in DNA. Its chemical composition is identical to that of leucine, but the arrangement of its atoms is slightly different, resulting in different properties. Nutritionally, in humans, isoleucine is an essential amino acid. Isoleucine is a hydrophobic amino acid. Its three letter code is ILE and its one letter code is I.
Isoleucine has two chiral centers; therefore there are four possible stereoisomers of isoleucine and two possible diastereomers of L-isoleucine. However, isoleucine present in nature exists in one enantiomeric form, (2S,3S)-2-amino-3-methylpentanoic acid.
Rich sources of isoleucine are eggs, chicken, pork, mutton, pulses, soya beans, cottage cheese, milk, piyal seeds, cashew nuts, and cereal grains.
| Forms of Isoleucine | |||||||
|---|---|---|---|---|---|---|---|
| Common name: | isoleucine | D-isoleucine | L-isoleucine | DL-isoleucine | allo-D-isoleucine | allo-L-isoleucine | allo-DL-isoleucine |
| Synonyms: | (R)-Isoleucine | L(+)-Isoleucine | (R*,R*)-isoleucine | alloisoleucine | |||
| PubChem: | CID 791 | CID 94206 | CID 6306 | CID 76551 | |||
| EINECS number: | 207-139-8 | 206-269-2 | 200-798-2 | 216-143-9 | 216-142-3 | 221-464-2 | |
| CAS number: | 443-79-8 | 319-78-8 | 73-32-5 | 1509-35-9 | 1509-34-8 | 3107-04-8 | |
[edit] External links
- Isoleucine and valine biosynthesis
- Computational Chemistry Wiki
- Link page to external chemical sources.
| The 20 Common Amino Acids | ||
|---|---|---|
| Alanine (dp) | Arginine (dp) | Asparagine (dp) | Aspartic acid (dp) | Cysteine (dp) | Glutamic acid (dp) | Glutamine (dp) | Glycine (dp) | Histidine (dp) | Isoleucine (dp) | Leucine (dp) | Lysine (dp) | Methionine (dp) | Phenylalanine (dp) | Proline (dp) | Serine (dp) | Threonine (dp) | Tryptophan (dp) | Tyrosine (dp) | Valine (dp) | ||
| ←Peptides | Major families of biochemicals | Nucleic acids→ |
de:Isoleucin es:Isoleucina eo:Izoleŭcino fr:Isoleucine id:Isoleusin it:Isoleucina he:איזולאוצין lv:Izoleicīns lb:Isoleucin lt:Izoleucinas nl:Isoleucine ja:イソロイシン pl:Izoleucyna pt:Isoleucina ru:Изолейцин fi:Isoleusiini sv:Isoleucin uk:Ізолейцин zh:異亮氨酸
