Pleated sheet

pleated sheet
One form of the secondary structure of proteins in which the polypeptide chain folds back and forth, or where two regions of the chain lie parallel to each other and are held together by hydrogen bonds.
pleiotropy ...

b-pleated sheet: A planar secondary structure element of proteins. It is created by hydrogen bonding between the backbone atoms in two different polypeptide chains or segments of a single folded chain.

Diagram of β-pleated sheet with H-bonding between protein strands
The β sheet (also β-pleated sheet) is the second form of regular secondary structure in proteins - the first is the alpha helix - consisting of beta strands connected ...

sheet A common structural motif in proteins, in which two or more β strands are associated as stacks of chains, stabilized by interchain hydrogen bonds; a number of β strands running in the same direction form a β pleated sheet, ...

The oxygen or nitrogen atoms of the peptide bond are capable of hydrogen- bonding with hydrogen atoms elsewhere on the molecule. This bonding produces two common kinds of shapes seen in protein molecules, coils (helices) and pleated sheets.

... either in the form of an alpha helix or the beta pleated sheet. ... Alpha Helix - Chime in new window. Main peptide in Chime is minus the hydrogens atoms. ...
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Hydrogen bonds between amino acids
Made of a combination of alpha-helices and beta-pleated sheets
Proportion of α-helix and β-sheet depends on sequence (primary structure)
Tertiary structure ...

secondary structure The structure of a protein created by the formation of hydrogen bonds between different amino acids; can be a pleated sheet, alpha helix, or random coil. Shape of a protein caused by attraction between R-groups of amino acids.

tertiary structure - the three-dimensional structure of a polypeptide chain that results from the way that the alpha helices and beta pleated sheets are folded and arranged [Source: The Dictionary of Cell and Molecular Biology, Third Edition] ...

See also: Protein, Hydrogen bond, Secondary Structure, Amino acids, Amino acid