Globular proteins or
spheroproteins are spherical ("globe-like")
proteins and are one of the common protein
types (the others being
fibrous,
disordered and
membrane proteins). Globular proteins are somewhat water-soluble (forming
colloids in water), unlike the fibrous or membrane proteins. There are multiple
fold classes of globular proteins, since there are many different architectures that can fold into a roughly spherical shape.