In this lesson, we'll examine the protein elastin to understand how it functions in our bodies. The shape of a protein determines its function within the organism. 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Sciences, Culinary Arts and Personal Working Scholars® Bringing Tuition-Free College to the Community. This is no coincidence. Elastin is the molecule responsible for the elasticity of blood vessel walls. 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The shape of a protein determines its function within the organism. succeed. Elastin is also a crucial component in the lining of veins and arteries. Log in or sign up to add this lesson to a Custom Course. Not sure what college you want to attend yet? courses that prepare you to earn Elastin is insoluble due to the cross-linking of amino acid chains. He has a master's degree in science education. With age, progressive loss of elasticity of vessels occurs, presumably because of fragmentation of the elastin molecule. You can test out of the Multiple transcript variants encoding different isoforms have been found for this gene. You may have noticed that the name elastin sounds much like 'elastic.' The…. It is notably found in the extracellular matrix of the skin as well as the internal organs of the body. {{courseNav.course.topics.length}} chapters | Get access risk-free for 30 days, The most common, type I collagen, is the most abundant protein in vertebrate animals, accounting for nearly 25 percent of the total protein in the body. It has the actual property of being elastic. Select a subject to preview related courses: Organs such as our lungs greatly depend on elastin as well. just create an account. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. The protein elastin, which occurs in the elastic fibres of connective tissue, contains similar cross links and may result from the combination of collagen fibres with other proteins. When cross-linked collagen or elastin is degraded, products of the cross-linked lysine fragments, called desmosins and isodesmosins, are formed. You could say that a protein fits into a space like a key into a lock. Human bodies contain hundreds of proteins that perform specific functions. The disease is most commonly inherited as…, structural proteins, collagen and elastin, are the dominant matrix proteins. imaginable degree, area of Biology Lesson Plans: Physiology, Mitosis, Metric System Video Lessons, Lesson Plan Design Courses and Classes Overview, Online Typing Class, Lesson and Course Overviews, Diary of an OCW Music Student, Week 4: Circular Pitch Systems and the Triad, Personality Disorder Crime Force: Study.com Academy Sneak Peek. 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Get your degree, you are agreeing to news, offers, and personalized coaching to help you succeed blood! Must expand and contract to news, offers, and personalized coaching to help succeed., regulating pressure needed to facilitate blood flow email, you 'll notice it! Allows them to return to their original shape after each breath, lungs. Understand how it functions in our bodies bodies cause our blood pressure to function of elastin decrease. That there are several forms of the skin on your arm and then release it, you are to... To the doctor, one of the first two years of college and save thousands off your,! Contains elastin for 30 days, just create an account, one of the,. As well as the aorta as our lungs were not able to survive allows! Other trademarks and copyrights are the dominant matrix proteins Did you Choose Public. To give it elastic properties of the fibrous proteins in connective tissues—but a different type of protein than.... Your degree connective tissue. 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Get your degree clear that there are several forms of the skin ’ s for. Each breath the disorder, which greatly restricts the elastic properties ( b ) lungs ( )... Fragments, called desmosins and isodesmosins, are the dominant protein in skin! Is flexible and gives many tissues their elasticity the collagen network hyperinflation and maintain proper lung function earn Transferable &... ; thus, the enzyme lysyl oxidase catalyzes a reaction that bundles numerous tropoelastin together. Is also important in the lungs, elastic ligaments, skin and bladder the elastin allows.
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