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alpha helix

File:Polypeptide_forming_an_alpha_helix,_with_hydrogen_bonds_in_magenta.gif · Wikimedia Commons · See Wikimedia Commons

EntityQ283399· pop 40· linked from 1,409 articles

alpha helix

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Also known as α-helix, Protein Conformation, alpha-Helical

type of secondary structure

Research

40,657 papers

via PubMed

~22 min read

Encyclopedic overview

Three-dimensional structure of an alpha helix in the protein crambin An alpha helix (or α-helix) is a sequence of amino acids in a protein that are twisted into a coil (a helix).

The alpha helix is the most common structural arrangement in the secondary structure of proteins. It is also the most extreme type of local structure, and it is the local structure that is most easily predicted from a sequence of amino acids.

Excerpted from Wikipedia’s “alpha helix” article, available under the CC BY-SA 4.0 licence.

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