title: Super-secondary structures involving triple-strand beta-sheets.
abstract: Triple-strand beta-sheets having up- and -down topology are widespread in proteins and occur in two forms denoted here as S-like and Z-like beta-sheets. In many cases they are included in super-secondary structures of higher order. A number of such structures is described in this paper. An important feature of these super-secondary structures is that they have a unique handedness. Another feature is that some of them only involve S-like beta-sheets and others only Z-like beta-sheets.
authors.affiliation: Institute of Protein Research, Russian Academy of Sciences, Pushchino.
authors.forename: A V
authors.initials: AV
authors.lastname: Efimov
mesh_terms: D017510:Protein Folding; D017433:Protein Structure, Secondary