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alpha helix

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
alpha helix
n.
A common structure of proteins, characterized by a single, spiral chain of amino acids stabilized by hydrogen bonds.

alpha-heli·cal (lf-hl-kl, -hl-) adj.

alpha helix
n
(Life Sciences & Allied Applications / Biochemistry) Biochem a helical conformation of a polypeptide chain, found abundantly in the structure of proteins

alpha helix
A common structure of proteins, characterized by a single, spiral chain of amino acids stabilized by hydrogen bonds. Compare beta sheetrandom coil


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An alpha helix, like scotch tape wrapped around a pencil to form a tube, is a common shape seen in proteins, one of the main classes of biological molecules.
The topology of constructed model is having one Alpha helix, two antiparallel Beta sheets and four loops.
9) Watson (now 23, became a research fellow at Cambridge) and Crick (now 35, and a graduate student there) had admired the work of Linus Pauling who had discovered in 1948 "that many proteins take the shape of an alpha helix, spiraled like a spring coil.
 
 
 
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