alpha helix

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alpha helix

A secondary structure of proteins, characterized by a single, spiral chain of amino acids stabilized by hydrogen bonds.

[From alpha-form, the form taken by unstretched protein molecules.]

al′pha-hel′i·cal (-hĕl′ĭ-kəl, -hē′lĭ-) adj.

alpha helix

(Biochemistry) biochem a helical conformation of a polypeptide chain, found abundantly in the structure of proteins

al′pha he′lix

the spatial configuration of many protein molecules in which the polypeptide backbone is stabilized by hydrogen bonds between amino acids in successive helical turns.
alfa uzvojnica
References in periodicals archive ?
Backers of the project can pick up a Helix in any of three colors - black, white, or clear - at reduced Kickstarter-only prices.
and VistaMed, a Helix Medical joint venture partner in Carrick-on-Shannon, Ireland.
This fraction is reduced to approximately 60% for a helix angle in the range of 50-60 [degrees].