👉 Crystallographic proteins are proteins that have a crystal structure, which is a three-dimensional arrangement of atoms and molecules. They are used in x-ray crystallography to study the properties of crystals at various temperatures and pressures. In the context of biology, crystallins refer to specific types of protein molecules that are highly specialized for their function. These proteins typically have a high degree of structural stability, as well as high specificity for certain chemical reactions or functions. They can be found in a variety