Direct observation of stress-induced dislocations in protein crystals by synchrotron X-ray topography

Stress-induced dislocations in glucose isomerase (GI) crystals were investigated by synchrotron X-ray topography with simple indentation method. It is observed that the indentation gives rise to the deformation associated with strain and dislocations over the entire crystal. It is characterized that three kinds of mobile dislocations with Burgers vectors of 12111, 100 and 010 are at least introduced by the impact stresses due to the indentation....