RJMLLlennieLimun16
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Jan 25, 2014
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About This Presentation
Elastin - Protein Chemistry
Size: 941.7 KB
Language: en
Added: Jan 25, 2014
Slides: 13 pages
Slide Content
ELASTIN Hizon , Kenneth Edward Ileto , Olga Eleane Limun , Rollen Jerland MT12214
Elastin Is found in skin and tissue of the body. It is a protein in connective tissue that is elastic and allows many tissues in the body to resume their shape after stretching or contracting. It is a protein that helps to keep our skin flexible but tight. It also helps keep skin smooth as it stretches to accommodate normal activities like flexing a muscle or opening and closing the mouth to talk or eat.
Elastin Elastin are like rubber bands. It helps skin to return to its original position when it is poked or pinched
Elastin Multiple copies of the tropoelastin protein attach to one another and are processed to form a mature protein Tropoelastin has some secondary structure, mainly alpha-helices and beta-turns but does not form any stable tertiary structure. Even the secondary structure can be lost as the microenvironment changes until they are linked into an elastin fiber which stabilizes them. It is created by fibroblasts which are a type of connective tissues. The capacity of fibroblasts goes on decreasing as we grow older.
Amino Acids in Elastin Composed of amino acids . Hexapeptide 2 Valine , 2 Glycine , Alanine and Proline .
Structures
Secondary Structure
Desmosine and Isodesmosine
Four lysine chains can be combined to form a desmosine cross-link
Conformation and Folding of Elastin Quaternary Structure Tertia ry Structure
Damaged Elastin Once our body tissues loose their elasticity, they can never regain it. It can be reduced or damaged due to various reasons like stress, hormones and smoking It can be also due to aging. As the body and its organs loose elasticity, our body’s functioning is also affected. Elastin is also damaged due to overexposure to sunlight
Elastin Used for skin-care products Anti-aging creams Skin Renewing Face Treatment Body Lotion Used as a coating on collagen patches for injuries. The addition of an active form of elastin to the skin’s surface has the potential to reduce the requirement for drugs or cosmetic surgery procedures, making it a highly cost effective and safe alternative.