Term
Name the enzymes involved in collagen synthesis |
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Definition
Lysyl Hydroxylase Prolyl Hydorylase Lysyl Oxidase Glycosyl transferase Amino and Carboxy terminal peptidases |
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Term
Name the different types of collagen disorders |
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Definition
Osteogenesis Imperfecta Ehlers - Danlos Alport Syndrome (hereditary nephritis) Menkes Scurvy Homocyteinuria Lathyrism |
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Term
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Definition
Collagen disorder characterized by abnormal cross-linking due to inhibition of lysyl oxidase Symptoms include deformation of the spine, dislocation joints, deminerlization of bones Is a dietary disease that arise from regular consumption of Lathyrus Odoratus, Sweet Pea...Contains Beta-aminoproprionitrile which inactivates lysyl oxidase. Penicillamine is also a cross link inhibitor used in chelation therapy to treat Wilson's Disease (copper overload disease). Chelates copper, making it unavailbale to lysyl oxidase. |
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Term
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Definition
alpha 1: hydrolyzes GLy-Ileu alpha 2: hydrolyzes Gly-Leu Requires Ca2+ and Zn2+ synthesized as procollagenase (inactive) involved in growth and remodeling of tissue |
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Term
Clostridium Histolyticum Collagenase |
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Definition
found in gangrene Cleaves right before --Gly-Pro-- Breaks down connective tissue barrier, allowing the spread of bacteria |
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Term
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Definition
A serine protease Hydrolyzes elasin and other proteins Does NOT hydrolyze collagen |
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Term
Name and describe the Antiproteases |
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Definition
Alpha 1 antitrypsin: will neutralize elastase, collagenase, and other serine proteases Alpha 2 macroglobulin: will neutralize elastase and other serine proteases Emphysema: arises from imbalance of alpha 1 antitrypsin and elastase; cigarette smoke reduces the numbers of alpha 1 antitrypsin |
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Term
WHat are the physiological roles of proteoglycans? |
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Definition
lubrication, fluid balance, support, antithrombic (dermatan and heparan), blood lipid clearing |
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Term
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Definition
aka mucopolysaccharide Polyanionic complex that consists of glycosaminoglycans covalently bound to a core protein |
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