Pauling and Corey Showed That in Small Peptides, Six Atoms

question 89

Short Answer

Pauling and Corey showed that in small peptides, six atoms associated with the peptide bond all lie in a plane. On a dipeptide of two amino acids in trans linkage (side-chains can be shown as -R), which six atoms are part of the planar structure of the peptide bond?

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Definitions:

Beta-Pleated Sheet

A common motif of secondary structure in proteins characterized by beta strands connected laterally by at least two or three backbone hydrogen bonds, forming a generally twisted, pleated sheet.

Globin

A group of proteins that form part of the structure of hemoglobin, responsible for oxygen transport in the blood.

Peptide Bonds

Chemical bonds formed between amino acids during protein synthesis, linking the carboxyl group of one amino acid to the amino group of another, releasing water.

Protein Structure

The three-dimensional arrangement of atoms in an amino acid-chain molecule, crucial for the protein's function.