Additives 1 Biological macromolecule 1 Crystal atomic structure 1 Crystallization conditions 1 Crystallization screen 1 Diffraction 1 Large amounts 1 Macromolecular crystallization 1 Macromolecules 1 Protein crystal 1 Protein crystallization Protein data bank 1 Proteins 1 Quality crystals 1 Screening 1 Self assembly 1 Structure determination 1 X ray crystallography 1 X-ray crystallography 1 crystallization screens 1 macromolecular crystallization 1 protein crystals 1