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beta structure
3 dictionary results for: Beta sheet
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
beta structure
–noun Biochemistry.
a secondary structure occurring in many proteins, consisting of several polypeptide chains running in parallel or alternating directions and joined by intermolecular hydrogen bonds, creating a flexible, strong arrangement.
Also called beta sheet, pleated sheet.
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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American Heritage Dictionary - Cite This Source - Share This
beta sheet  
n.   A structure that occurs in many proteins and consists of two or more parallel adjacent polypeptide chains arranged so that hydrogen bonds can form between the chains.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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The American Heritage Science Dictionary - Cite This Source - Share This
beta sheet  
A structure that occurs in many proteins and consists of two or more parallel adjacent polypeptide chains arranged in such a way that hydrogen bonds can form between the chains. Unlike in an alpha helix where the amino acids form a coil, in beta sheets the amino acids are arranged in a zigzag pattern that forms a straight chain. The proteins in silk have a beta-sheet structure. Compare alpha helix, random coil.

The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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