title: Chameleon sequences in the PDB.
abstract: The Brookhaven Protein Data Bank has been searched for sequences that can be found both in helix and sheet conformation. The longest such sequences consist of seven residues.
authors.affiliation: Department of Physiology and Biophysics, Mount Sinai School of Medicine, CUNY, New York, NY 10029, USA.
authors.forename: M
authors.initials: M
authors.lastname: Mezei
mesh_terms: D000595:Amino Acid Sequence; D004250:DNA Topoisomerases, Type II / Q000737:chemistry; D016208:Databases, Factual; D005964:Glucosyltransferases / Q000737:chemistry; D007128:Immunoglobulin Fragments / Q000737:chemistry; D008049:Lipase / Q000737:chemistry; D008958:Models, Molecular; D000587:Oxidoreductases Acting on CH-NH Group Donors / Q000737:chemistry; D011487:Protein Conformation; D017510:Protein Folding; D017433:Protein Structure, Secondary; D011506:Proteins / Q000737:chemistry*; D001616:beta-Galactosidase / Q000737:chemistry
chemical_list: D007128:Immunoglobulin Fragments; D011506:Proteins; C021567:methylamine dehydrogenase; D000587:Oxidoreductases Acting on CH-NH Group Donors; D005964:Glucosyltransferases; C019963:cyclomaltodextrin glucanotransferase; D008049:Lipase; D001616:beta-Galactosidase; D004250:DNA Topoisomerases, Type II