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Figure 1
Effect of single-amino-acid deletions on secondary-structure registry. (a) Deletion of a single amino acid (blue circle) from a loop region connecting two ordered secondary-structural elements (red rectangles) is usually accommodated by loop shortening. Deletion of an amino acid from (b) a β-strand or (c) an α-helix results in registry shifts. Amino acids are coloured red or blue to distinguish between different faces of a secondary structure.

Journal logoBIOLOGICAL
CRYSTALLOGRAPHY
ISSN: 1399-0047
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