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Leucine
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| Leucine | |
|---|---|
| Systematic name | (S)-2-Amino-4-methyl pentanoic acid |
| Abbreviations | Leu L |
| Chemical formula | C6H13NO2 |
| Molecular mass | 131.18 g mol-1 |
| Melting point | 293 °C |
| Density | 1.165 g cm-3 |
| Isoelectric point | 5.98 |
| pKa | 2.32 9.58 |
| CAS number | [61-90-5] |
| EINECS number | 200-522-0 |
| SMILES | CC(C)CC(N)COO |
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| Disclaimer and references | |
Leucine is one of the 20 most common amino acids and coded for by DNA. It is isomeric with isoleucine. Nutritionally, in humans, leucine is an essential amino acid.
![Leucine Formula (Older Version [Note the diferences in the order of the elements in a molecule])](/web/20060203091450/http://en.wikipedia.org/wiki/Image:Leu-stick.png)
Leucine is the most common amino acid found in proteins, and is essential for optimal growth in infancy and childhood and for nitrogen equilibrium in adults. It is suspected that Leucine plays a part in maintaining muscles by equalizing synthesis and breakdown of proteins.
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External links
| Alanine | Arginine | Asparagine | Aspartic acid | Cysteine | Glutamic acid | Glutamine | Glycine | Histidine | Isoleucine | Leucine | Lysine | Methionine | Phenylalanine | Proline | Serine | Threonine | Tryptophan | Tyrosine | Valine |
| Essential amino acid | Protein | Peptide | Genetic code |
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