Elastin n. : A nitrogenous substance, somewhat resembling albumin, which forms the chemical basis of elastic tissue. It is very insoluble in most fluids, but is gradually dissolved when digested with either pepsin or trypsin.

Example:
Can anyone help me find a good picture of the protein, Elastin?

Taxonomy
Elastin receptor, alpha, free encyclopedia, keratins, tissues, body, amino acids, skin, search, Identifiers, Symbol, ELN, resume, shape, original position, load-bearing, the bodies, mammals.

Defination from the web:
Elastin serves an important function in arteries and is particularly abundant in large elastic blood vessels such as the aorta. Elastin is also very important in the lungs, elastic ligaments, the skin, the bladder, elastic cartilage, and the intervertebral disc above the sacroiliac. ...