Such components include fibronectin, collagen, glycosaminoglycans, elastin, glycoproteins and proteoglycans. The main structural proteins are collagen and elastin. The technique induces tissue remodeling and production of new collagen and elastin. The pigments can also be incorporated into collagen and elastin fibers. There are many scleroprotein superfamilies including keratin, collagen, elastin, and fibroin. These abnormalities correlated well with decreased cross-linking of collagen and elastin. The bulk of these lesions is made of excess fat, collagen, and elastin. It consists of loose connective tissue, adipose tissue and elastin. It consists of loose connective tissue and elastin. The connective tissue protein elastin also has a high percentage of both glycine and alanine. Elastic fibers include elastin, elaunin and oxytalan. Elastases form a subfamily of serine proteases that hydrolyze many proteins in addition to elastin. Elastic fiber in the body is a mixture of amorphous elastin and fibrous fibrillin. Elastic fibers, made from elastin and fibrillin, also provide resistance to stretch forces. The PPII structure widely exists in elastomeric proteins, such as abductin, elastin, and titin.