Stick model of L-glutamic acid (E).







Some facts on L-glutamic acid.

1. Abbreviation: Glu.
2. One-letter code: E, (near G).
3. Molecular mass: 147 daltons.
4. Side-chain (or R-group) features:
   • Formula: -(CH₂)₂-COO^-;
   • Category: Very hydrophilic, negatively charged;
   • pK_a: 4.5.

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Ball & Stick model of L-aspartic acid (D)
Back to Question 3.








Some facts on L-aspartic acid.

1. Abbreviation: Asp.
2. One-letter code: D, (near A).
3. Molecular mass: 133 daltons.
4. Side-chain (or R-group) features:
   • Formula: -CH₂-COO^-;
   • Category: Very hydrophilic, negatively charged;
   • pK_a: 4.5.

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Last modified August 1, 1996