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Effect of macromolecular mass transport in microgravity protein crystallization

conditions to investigate the effect of impurity incorporation into a growing crystal. It was observed that the HEWL crystals grown under microgravity conditions contain 4.5 times less HEWL dimers than control experiments performed on earth ( Carter et al., 1999 ). Another experiment demonstrated that the presence of chicken egg-white lysozyme dimers in the crystallization solutions in microgravity reduced crystal size, increased mosaicity, and reduced the signal-to-noise ratio of the X-ray data ( Snell et al., 2001 ). Yet in another investigation, no significant

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