Aspartic acid
chemical compound
Aspartic acid (symbol Asp or D;[4] is an α-amino acid that is used in the biosynthesis of proteins.[5] Like all other amino acids, it contains an amino group and a carboxylic acid. Aspartic acid has an acidic side chain (CH2COOH) which reacts with other amino acids, enzymes and proteins in the body.[5]
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ECHA InfoCard | 100.000.265 | ||
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C4H7NO4 | |||
Molar mass | 133.10 g·mol−1 | ||
Appearance | colourless crystals | ||
Density | 1.7 g/cm3 | ||
Melting point | 270 °C (518 °F; 543 K) | ||
Boiling point | 324 °C (615 °F; 597 K) (decomposes) | ||
4.5 g/L[2] | |||
Acidity (pKa) |
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Conjugate base | Aspartate | ||
-64.2·10−6 cm3/mol | |||
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |||
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It is a non-essential amino acid in humans, meaning the body can make it as needed. It is encoded by the codons GAU and GAC.
D-Aspartate is one of two D-amino acids commonly found in mammals.[3]
References
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