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Two Different Packing Arrangements of Antiparallel Polyalanine
Author(s) -
Asakura Tetsuo,
Okonogi Michi,
Horiguchi Kumiko,
Aoki Akihiro,
Saitô Hazime,
Knight David P.,
Williamson Mike P.
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201105356
Subject(s) - antiparallel (mathematics) , crystallography , chemistry , materials science , mathematics , combinatorics , physics , quantum mechanics , magnetic field
Two β‐sheet arrangements : Polyalanines have been shown to adopt two different antiparallel crystal‐packing arrangements, depending on the length of the polymers. Short polymers that contain six alanine residues or fewer adopt a rectangular packing arrangement, whereas longer polymers are packed in a staggered pattern (see scheme). The elucidation of these structures may help to explain the physical and biological properties of polyalanines.