The major ecM molecules 1. Collagens 2. Elastin 3. Proteoglycans and glycosaminoglycans(GAGs) 4. Cell-adhesion molecules(fibronectin, laminin others) 5. Water(about 65%)The major ECM molecules 1. Collagens. 2. Elastin. 3. Proteoglycans and glycosaminoglycans (GAGs). 4. Cell-adhesion molecules (fibronectin, laminin, others). 5. Water (about 65%). 7