Sclerotin

Highly resistant and insoluble protein occurring in the cuticle of arthropods; also thought to occur in structures secreted by various other animals, such as in the eggshells of some trematodes, in which stabilisation of the protein is achieved by orthoquinone cross-links between free imino or amino groups of the protein molecules.

Sclerotin

Sclerotin is a component of the cuticles of various Arthropoda, most familiarly insects. It is formed by cross-linking members of particular classes of protein molecules, a biochemical process called sclerotization. Technically it amounts to a form of tanning. The resulting material adds physical stiffness to the toughness of an insect`s chitinou....
Found on http://en.wikipedia.org/wiki/Sclerotin

sclerotin

a dark-brown biological pigment formed by an enzyme-catalyzed tanning of protein. Sclerotin is found in the cuticle (external covering) and egg ... [5 related articles]
Found on http://www.britannica.com/eb/a-z/s/48

sclerotin

an insoluble tanned protein permeating and stiffening the chitin of the cuticle of arthropods
Found on http://www.fossilmall.com/Science/Glossary.htm

Sclerotin

Cuticular protein that has been hardened and darkened through cross-linkage of the molecules.
Found on http://www.ag.auburn.edu/enpl/courses/glossary.htm
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