Heme

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  • Essay On Peroxidase

    Introduction: Enzymes are biological molecules that act as a catalyst to significantly speed up the rate of the chemical reactions that take place within cells without being used up in the process. According to the website, www.ducksters.com, “enzymes are special types of proteins. Like all proteins, enzymes are made from strings of amino acids. The function of the enzyme is determined by the sequence of amino acids, types of amino acids, and the shape of the string.” Along with this we need to know about a peroxidase; “A peroxidase is one of a number of enzymes that act as catalysts to allow a variety of biological processes to take place. Specifically, they promote the oxidation of various compounds using naturally occurring peroxides, especially hydrogen peroxide (H2O2), which are reduced, forming water. Peroxides are created as byproducts of various biochemical reactions within organisms, but can cause damage as they are oxidizing agents. Peroxidases break these compounds down in to harmless substances by adding hydrogen, obtained from another molecule — known as a donor molecule — in a reduction-oxidation (redox) reaction in which the peroxide is reduced to form water, and the other molecule is oxidized. There are a large number of these enzymes, and they are found in plants and animals, including humans.”, according to an article written on What is a peroxidase? From www.wisegeek.org. Isozymes also known as isoenzymes are according to an article, Isozymes Provide a…

    Words: 1115 - Pages: 5
  • Sickle Cell Disease Case Study

    Special delivery of toxic cell-free heme causes vascular damage in Sickle Cell Disease Scientists describe a novel mechanism responsible for blood vessel injury in Sickle Cell Disease (SCD): microparticles derived from sickle cells deliver heme to the vascular endothelial cells causing oxidative damage. Sickle Cell Disease (SCD) is an inherited blood disorder caused by a single base mutation in the DNA of affected patients, producing abnormal hemoglobin molecules. In SCD, red blood cells…

    Words: 720 - Pages: 3
  • Porphyria Research Paper

    mimic those of a hundred other conditions. Each type of porphyria has the same root cause which is the production of heme in the body. Heme is a component of hemoglobin which is a protein in red blood cells that carries oxygen from the lungs to the rest of the body. It also is an iron-containing compound used throughout the body in the role of breaking down chemicals so they can be removed from your body. (Kujtan 2005). Heme is made mainly in the bone marrow and the liver through the…

    Words: 1189 - Pages: 5
  • Acute Intermittent Porphyria

    Prophylactic hemin is a porphyrin chelate of iron, derived from red blood cells. Panhematin® is one of many prescribed medications for the treatment of acute intermittent porphyria attacks. Hemin is administered to avoid the progression of generalized pain to a neurological crisis. Because delta-aminolevulinic acid, the first step in heme synthesis, is regulated by a heme feedback mechanism, it was determined that acute porphyrias represent a deficiency in hepatocytes (Bissell & Wang, 2015). …

    Words: 1580 - Pages: 7
  • Pros And Cons Of Impossible Burger

    for us. Impossible Burger is a team with top scientists, farmers and chefs who noticed the problem and tried to find the solution. After they spent five years on studying the meat, they found a way to produce meat, not bleeding but planting. The flavor, texture, smell, appearance, and sound are as same as a real burger. In this five years, they try to find out what makes meat to be meat and what is the elements that attract human to eat meat. Finally, they found out a magic ingredient that exist…

    Words: 1255 - Pages: 6
  • Vegetarianism And Vegetarianism

    different types of iron. Meat contains a form of iron called heme iron, while vegetables contain a form of iron called non-heme iron. According to the Office of Dietary Supplements, “Absorption of heme iron ranges from 15% to 35%, and is not significantly affected by diet. In contrast, 2% to 20% of non-heme iron in plant foods such as rice, maize, black beans, soybeans and wheat is absorbed.” In other words, iron found in meat absorbs better than iron found in vegetables and is more constant in…

    Words: 1220 - Pages: 5
  • Hemoglobin Research Paper

    According to Iwasa (undated), the conformation of an oxygenated hemoglobin is referred to as relaxed (R) state, while the deoxygenated one is in taut (T) conformation state. In the taut conformation, the iron molecule is non-planar in relation to the remaining part of the heme group. This non-planar relationship is caused the interaction between the iron molecule and the histidine side chain. However, when the iron binds to oxygen, it changes it position relative to the remaining heme group.…

    Words: 1396 - Pages: 6
  • Lab Report Cyp1a1

    heading. Major structural features responsible for the function: CYP450 1A1 is one of the group of CYP 450 enzymes that have a significant role in metabolizing xenobiotics. Studies shows that the active site of CYP450 1A1 is equal to 2.6 Å. Each enzyme of CYP450 group has a conserved heme group in its active site with the central iron atom working for oxidation of different substrates such as drugs. The central iron atom in the heme group can form six bonds, four of the bonds are made with the…

    Words: 1779 - Pages: 8
  • Anastrozole Research Paper

    The drug contains a 1,2,4-triazole ring which allows the triazole nitrogen (N-4) of anastrozole to coordinate with a heme iron on the active site of aromatase, this interaction is the primary interaction between anastrozole and the active site of aromatase [6]. Another interaction between the drug and aromatase is hydrogen bonding; this occurs between the triazole nitrogen (N-1) of anastrozole and the T310 residue in the active site of aromatase and between the cyano group (C-N) of anastrozole…

    Words: 1117 - Pages: 5
  • Red Meat Benefits

    environment in Brazil, the World Cancer Research Fund (WCRF) considers that the relationship between red and processed meat and cancer are very convincing and recommends that the public limit the intake of them (Excessive red and processed meat intake: relations with health and environment in Brazil. Carvalho, A. M., Selem, S. S., Miranda, A. M., & Marchioni, D. M.). Along with cancer, red meat has also been linked to type 2 diabetes, stroke, and weight gain (Excessive red and processed meat…

    Words: 1086 - Pages: 5
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