U.S. flag

An official website of the United States government

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.

Alberts B, Bray D, Lewis J, et al. Molecular Biology of the Cell. 3rd edition. New York: Garland Science; 1994.

  • By agreement with the publisher, this book is accessible by the search feature, but cannot be browsed.
Cover of Molecular Biology of the Cell

Molecular Biology of the Cell. 3rd edition.

Show details
Figure 3-30. An α helix is another common structure formed by parts of the polypeptide chain in proteins.

Figure 3-30An α helix is another common structure formed by parts of the polypeptide chain in proteins

(A) The oxygen-carrying molecule myoglobin (153 amino acids long) is shown, with one region of α helix outlined in color. (B) A perfect α helix is shown in outline. (C) As in the β sheet, every peptide bond in an α helix is hydrogen-bonded to a neighboring peptide bond. Note that for clarity in (B) both the side chains [which protrude radially along the outside of the helix and are denoted by R in (C)] and the hydrogen atom are omitted on the α-carbon atom of each amino acid (see also Figure 3-31).

From: Protein Structure

Copyright © 1994, Bruce Alberts, Dennis Bray, Julian Lewis, Martin Raff, Keith Roberts, and James D Watson.

Views

  • Cite this Page

Related Items in Bookshelf

Recent Activity

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...