Crystallography‎ > ‎Crystals‎ > ‎

Random notes

- ISOTROPIC = Cubic (point-group symmetry)
- UNIAXIAL = Trigonal, Tetragonal, Hexagonal
- BIAXIAL = Orthorhombic, Monoclinic, Triclinic

In-situ proteolysis

[...] add commercially produced chymotrypsin to the crystallization trials at a starting ratio of 1:100 chymotrypsin to target protein. If chymotrypsin fails, they try trypsin, elastase, papain, subtilisin A and endoprotease Glu-C (V8 protease), at differing ratios.

From: Crystals from recalcitrant proteins

Other links:

pH and Protein Crystallization

From Hampton @

Radiation damage

- An interesting document showing flux densities for different beamlines (useful for planning crystal diffraction experiments):

- An interesting application to calculate how long a particular crystal composition will behave at a particular wavelength:

- A paper showing how radiation damage can be exploited to solve crystal structures: