PROTEINS                                                  
                                                                                
The demo images are categorised so that it is easier to locate a                
particular image. Proteins represents one such category.                        
                                                                                
This category of image illustrates the versatility of Constructive              
Solid Geometry in representing some of the molecular properties of              
various proteins.                                                               
Molecular structures are shown in ball-and-stick form and also                  
as a collection of space-filling spheres which depict the electron              
clouds associated with each of the atoms.                                       
There are also simplified representations, or secondary structures,             
in which parts of the molecules have been replaced by simple primitives.        
The images also demonstrate how useful colour can be to represent               
different molecular properties e.g. hydrophobicity, charge, temperature.