Tetartohedral twinning could happen to you too

Acta Crystallogr D Biol Crystallogr. 2012 Apr;68(Pt 4):418-24. doi: 10.1107/S0907444912006737. Epub 2012 Mar 16.

Abstract

Tetartohedral crystal twinning is discussed as a particular case of (pseudo)merohedral twinning when the number of twinned domains is four. Tetartohedrally twinned crystals often possess pseudosymmetry, with the rotational part of the pseudosymmetry operators coinciding with the twinning operators. Tetartohedrally twinned structures from the literature are reviewed and the recent structure determination of tetartohedrally twinned triclinic crystals of human complement factor I is discussed.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Complement Factor I / analysis
  • Complement Factor I / chemistry
  • Crystallography, X-Ray / methods*
  • Databases, Protein
  • Humans

Substances

  • CFI protein, human
  • Complement Factor I