Nucleation theory has assumed that atoms and round molecules form spherical nuclei. Since apoferritin is roughly spherical, it therefore ought to form spherical nuclei as well. Researchers can't just assume they know the structure of the nucleus of any crystallizing material, he says. And, he adds, more experiments are needed to verify or modify models of how solids form. Protein crystallization plays a key role in diseases such as sickle cell anemia and cataracts, and researchers use crystallization when developing drugs.
Scientists also grow crystals to determine a protein's structure through X-ray crystallography.
What's more, understanding crystallization could help engineers improve the strength of materials such as metals. And that, he adds, could lead to many technological improvements, such as stronger turbine components for jet engines. All rights reserved. Cyber Space Day Subscribe to Science News . Copyright Clearance Center Browse a Science News photo collection.