Organic Chemistry

Learn the toughest concepts covered in Organic Chemistry with step-by-step video tutorials and practice problems by world-class tutors.

26. Amino Acids, Peptides, and Proteins

L and D Amino Acids

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All of the chiral amino acids derived from proteins have an L-(S)-configuration at the α-carbon.

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concept

Representations of L-Configuration

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example

Converting Bondline to Fischer Projection

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Great job, guys! Now let's try to do some practice problems on our own. 

3
Problem

Provide the Fischer Projection representation of D-Aspartic Acid. Indicate if the chiral center is R or S.

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Problem

Convert the following Fischer Projection of L-Proline into a bondline structure.