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beta sheet
(redirected from Beta strand)

    Also found in: Wikipedia 0.01 sec.
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.
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 helixrandom coil
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The key hydrophobic contacts in the dimer interface are made by residues F58-cis-P59 which form a sharp bend at the end of an intermolecular beta strand.
ARE THE SLOW KINETICS OF CRO DIMER ASSEMBLY CRITICAL TO THE LAMBDA ... by Journal of the Mississippi Academy of Sciences
In beta sheets, peptides line up in parallel zigzags called beta strands.
Material peptide: a piece of protein yeast becomes a building block ... by Pennisi, Elizabeth / Science News
 
 
 
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