The Protein Data Bank Assignment: Glucansucrase After I came to America‚ I have already met my dentist many times. Although I brush my teeth three times a day‚ use floss correctly and meet dentist every year‚ I don’t know why my teeth keep in trouble and get cavities again and again. I really want to figure out why the bacteria from my mouth cannot be removed. When I am finding some protein‚ I found that Glucansucrase which is related on the issue of tooth decay. I think Glucansucrase
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Biochemistry Fats‚ Diet‚ and Heart Disease ‘Fat’ can sometime be a word that gives people the chills when they hear about it. It is one of the three main sources of calories to our diet and a major part of ones dietary requirement. There are three kinds of fat: saturated‚ polyunsaturated and monounsaturated. The degree of saturation is dependent on the amount of double and triple bonds in the chemical makeup. Saturated fats are known to increase the body’s levels of serum (blood) cholesterol
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AP Bio Ras Protein Paper The Ras proteins are a family of proteins that belong to a class of proteins called the small GTPase’s. They belong to a large super-family of proteins known as "low-molecular weight G-proteins". They are used to transmit signals throughout a cell using transduction. They strengthen the signals conveyed by linking them to a chemically irreversible process such as the cleavage of GTP. Ras proteins are usually in the “off” state where the GDP is bound to the site. However
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Background: Pepsinogen is an inactive protein that is the mucus lining of the stomach. When converted to pepsin‚ the enzyme is used to break down large or undigested protein they has been absorbed by the small intestine. The digestive power of pepsin is greatest at the acidity of normal gastric juice (pH 1.5–2.5). In the intestine the gastric acids are neutralized (pH 7)‚ and pepsin is no longer effective. "Pepsin (biochemistry)." Encyclopedia Britannica Online. Encyclopedia Britannica‚ n.d. Web
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Case Study: Newsflash! Transport Proteins on Strike! 1. What is the meaning behind the PHOSPHOLIPIDS’ chant? Phospholipids make up most of the cell membrane‚ in a phospholipid bilayer. Phospholipid molecules form two layers‚ with the hydrophilic (water loving) head facing the extracellular fluid and the cytosol (intracellular) fluid‚ and the hydrophobic (not water loving) tails facing one another. The cell membrane is constructed in such a way that it is semipermeable‚ and allows oxygen
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Unit 1: Biochemistry Review Chemical Bonding Three types of bonds Ionic bond: 2 oppositely charged atoms (Na and Cl) Polar covalent: Unequally shared electrons (H and O) Non polar covalent: Equally shared electrons (C and C) or similar electronegativity Electronegativity and chemical bonding Electronegativity is a measure of the strength in which an atom can attract electrons. A difference of < 0. 5 is non polar covalent bond A difference of 0.5 – 1.7 is polar covalent bond A difference of > 1
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04/18/2018 Lab 9 Conclusion Chem. 102L For lab 9‚ isolation of casein‚ the main purpose was to take the milk sample that was provided in the lab and through the addition of acid‚ be able to find the pH of the milk at the isoelectric point of casein. Isoelectric point is the pH at which a particular molecule carries no net electrical charge. The main points of the lab or the outcomes we were looking for were to be able to look at the properties of proteins in casein and be able to identify them properly
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Cheyenne Kenny September 29‚ 2014. Biology Properties Of Water Adhesion How does temperature change affect surface tension? As the temperature of a liquid increases‚ its surface tension decreases. When water heats up‚ the movement of its molecules disrupts the imbalanced forces on the surface of the water and weakens its sheet-like barrier of tightly bound molecules‚ thereby lowering the surface tension. This is why hot water is more effective when cleaning; its low surface
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EXPERIMENT NO. 1 AIM: To perform isolation of the genomic DNA from the bacterial cell. REQUIREMENTS: Biological: Bacterial culture (DH5α) Chemical: Solution 1 - 10ml • Glucose (50mM) - 500μl • Tris-Cl (pH 8.0‚ 25mM) - 250μl • EDTA (pH 8.0‚ 10mM) - 200μ Solution 2 • SDS (1%) Phenol: chloroform: isoamylalcohol (25:24:1)‚ Absolute ethanol‚ 70% ethanol‚ Sterile distilled water Apparatus: Micropipettes‚ conical flask‚ measuring
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Wine is of great importance in our society today‚ and has been so for thousands of years. Grapes have been cultivated for wine production in the Near East since 4000BC‚ and in Egypt since 2500BC. They were spread from the Black Sea to Spain by the Greek Empire‚into Germany by the Romans and to the New World by Columbus. Wine has had religious significance as both an offering and a sacrament since Biblical times‚ and this has helped its development. Today an enormous variety of wines are available
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