Symmetry and space groups: Difference between revisions

Revision as of 22:45, 22 February 2008

The crystallographic toolbox is at [1]. Its predecessor, SgInfo, is here.

There are 230 space groups, 65 of which accessible to proteins.

Empirically, P2₁2₁2₁ is the space group which occurs most often (23%) in the PDB; second place is P₁ with 14.4% ( [2]).

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+Space group operators can be found here: http://www.embl-hamburg.de/~pinotsis/spacegroup.html
+The crystallographic toolbox is at [http://cci.lbl.gov/cctbx/]. Its predecessor, SgInfo, is [http://cci.lbl.gov/sginfo/ here].
-Space group operators can be found here: http://www.embl-hamburg.de/~pinotsis/spacegroup.html
+== Facts about space groups ==
+There are 230 space groups, 65 of which accessible to proteins.
-Empirically, P2_{1}2_{1}2_{1} is the space group which occurs most often in the PDB (23%); second place is P2_{1} with 14.4% ( http://www.rcsb.org/pdb/statistics/histogram.do?mdcat=symmetry&mditem=space_group_name_H-M&numOfbars=200).
+Empirically, P2<sub>1</sub>2<sub>1</sub>2<sub>1</sub> is the space group which occurs most often (23%) in the [http://www.rcsb.org PDB]; second place is P<sub>1</sub> with 14.4% ( [http://www.rcsb.org/pdb/statistics/histogram.do?mdcat=symmetry&mditem=space_group_name_H-M&numOfbars=200]).