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==Improving crystals== | ==Improving crystals== | ||
===Reducing the mosaicity=== | ===Reducing the mosaicity=== | ||
# incubate your crystal longer in your cryo/stabilization solution. This helps sometimes. | |||
# try co-crystallization with glycerol (2%, 5% or 10%). | |||
# the mosaicity may be anisotropic, so try to orient the crystal in the loop such that you can shoot along a different axis | |||
# change precipitant, pH, temperature, add additives | |||
# optimize cryo conditions | |||
# use a synchrotron beam (as it is less divergent than the usual home source, and the apparent mosaicity is the sum of the crystal mosaicity and the crossfire) | |||
# try smaller crystals (often growth faults lead to end of crystal growth) | |||
# shoot at parts of the crystal to find if there are good and bad parts (this requires a small beam) | |||
# anneal (freeze/thaw) the crystal - '''DISCLAIMER''': your mosaicity can go up as well as down with annealing | |||
# look at Elspeth Garman's papers, and/or check her talks at RapiData workshops (anybody with a link??) |