Aspartic Acid: Difference between revisions
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<![endif]--> <!--StartFragment--> <span lang="EN-US" style="font-size:13.0pt;font-family:Helvetica;mso-bidi-font-family:Helvetica">The | <![endif]--> <!--StartFragment--> <span lang="EN-US" style="font-size:13.0pt;font-family:Helvetica;mso-bidi-font-family:Helvetica">The | ||
amino acid has both ‘L’ and ‘D’ isomers, and the </span><span lang="EN-US" style="font-size:11.0pt;font-family:Helvetica;mso-bidi-font-family:Helvetica">L</span><span lang="EN-US" style="font-size:13.0pt;font-family:Helvetica;mso-bidi-font-family: Helvetica">-isomer of aspartate is one of the 22 [http://en.wikipedia.org/wiki/Proteinogenic_amino_acid <span style="color:#0013A9">proteinogenic</span>] amino acids (those that are the building blocks of proteins). Most chemical syntheses will produce a ‘DL-aspartic acid’ which is a racemic mixture.</span> | amino acid has both ‘L’ and ‘D’ isomers, and the </span><span lang="EN-US" style="font-size:11.0pt;font-family:Helvetica;mso-bidi-font-family:Helvetica">L</span><span lang="EN-US" style="font-size:13.0pt;font-family:Helvetica;mso-bidi-font-family: Helvetica">-isomer of aspartate is one of the 22 [http://en.wikipedia.org/wiki/Proteinogenic_amino_acid <span style="color:#0013A9">proteinogenic</span>] amino acids (those that are the building blocks of proteins). Most chemical syntheses will produce a ‘DL-aspartic acid’ which is a racemic mixture.</span> | ||
<span lang="EN-US" style="font-size: 13.0pt;font-family:Helvetica;mso-bidi-font-family:Helvetica">It is coded for by | |||
the three letter code Asp and the one letter code D.</span><br> | the three letter code Asp and the one letter code D.</span><br> | ||
Revision as of 16:38, 29 November 2013
Aspartic acid, also known as aspartate, is an amino acid with an acidic side chain. At normal pH it usually carries a negative charge. This is due to a missing proton from the -COOH (carboxylic acid) group. Aspartic acid has the chemical formula HOOCCH(NH2)CH2. Aspartic acid along with glutamic acid is the only acidic amino acid with a pka of 3.86.
The
amino acid has both ‘L’ and ‘D’ isomers, and the L-isomer of aspartate is one of the 22 proteinogenic amino acids (those that are the building blocks of proteins). Most chemical syntheses will produce a ‘DL-aspartic acid’ which is a racemic mixture.
It is coded for by
the three letter code Asp and the one letter code D.
academics.keene.edu/rblatchly/Chem220/hand/npaa/aawpka.htm