Dehydroalanine Identifiers CAS number PubChem ChemSpider DrugBank KEGG ChEBI Jmol-3D images Image 1
Properties Molecular formula C3H5NO2 Molar mass 87.08 g/mol (what is: /?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Dehydroalanine (DHA) is also found in food proteins, including casein, that have been heated and/or treated with an alkali such as sodium hydroxide (NaOH). These treatments can dehydrate serine in the protein chain. In food, DHA frequently alkylates lysine to yield the crosslinking aminoacid lysinoalanine (LAL). Lysinoalanine, N6-(DL-2-amino-2-carboxyethyl)-L-lysine, an unusual amino acid implicated as a renal toxic factor in laboratory rats (kidney damage), has been found in proteins of home-cooked and commercial foods and ingredients. Although it had been reported to occur in both edible and non-food proteins only after alkali treatment (such as occurs in soybean processing), it has also been identified in food proteins that had not been subjected to alkali. Lysinoalanine can also be generated in a variety of proteins when heated under non-alkaline conditions.
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