Keratin is a constituent of hair, nails, skin, feathers, hooves, horns, etc. Apart from keratin, scleroproteins also occur as collagen, elastin, and fibroin. Fibroin is one of the groups of proteins found in the silk of certain arthropods such as arachnids and insects.

Which one is the example of Scleroprotein?

Scleroprotein consist of many superfamilies including keratin, collagen, elastin, and Fibrin. Collagen is the most abundant protein which exists in vertebrae animal as tendon, cartilage and bone.

Is elastin a Scleroprotein?

The scleroproteins are structural proteins, such as collagen and elastin, and tend to form fibrils.