Let's say I have a protein crystal from which I collected 30 datasets. If I plot the unit cell volume per dataset the volume rises. My question is: Is there a rule of thumb of some sort* to consider the initial/final datasets isomorphous still?
* Something like if the unit cell volume changes more than 1% then the crystal is not isomorphous. My second question is: Meents already said that the unit cell volume expansion is a consequence of hydrogen gas building up inside the crystal. But...what if the unit cell volume decreases? Is there an explanation for that? Thank you very much. ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1
