Secondary protein structure: the Beta-pleated Sheet
The Beta-pleated
sheet is a series of anti-parallel chains of covalently-linked
amino acids,
with adjacent chains linked by hydrogen bonds. The regular folding of
each
amino acid residue at the central carbon leads to a regular pleated
pattern across chains. Note
that the R-groups are directed perpendicularly to the plane of
the
sheet, and alternate above and below the sheet.
Figure © 2000 by Griffiths et al. ; All text material ©2005 by Steven M. Carr