BCHEM 253 – METABOLISM IN HEALTH AND DISEASES
... Step A. A general acid, presumably a lys ε-amino group catalyses the ring opening. Step B. A base presumably a carboxylate of glutamate abstracts the proton of C2 to form a cis enediolate intermediate, Step C: The proton abstracted from C2 is replaced on the C1 carbon. Ring closure then produces the ...
... Step A. A general acid, presumably a lys ε-amino group catalyses the ring opening. Step B. A base presumably a carboxylate of glutamate abstracts the proton of C2 to form a cis enediolate intermediate, Step C: The proton abstracted from C2 is replaced on the C1 carbon. Ring closure then produces the ...
Lecture Slides
... • DNA resides in cells in long fibers called chromosomes. • A gene is a specific stretch of DNA that programs the amino acid sequence of a polypeptide. • The chemical code of DNA must be translated from “nucleic acid language” to “protein language.” ...
... • DNA resides in cells in long fibers called chromosomes. • A gene is a specific stretch of DNA that programs the amino acid sequence of a polypeptide. • The chemical code of DNA must be translated from “nucleic acid language” to “protein language.” ...
proteins - LSU Macro Sites
... If no atoms are w/in 5Å of each other, then no chemical shifts will change in the 2nd dimension. If an there is an atom “Y” within 5Å of the atom absorbing energy in dimension 1 (atom “X”), then atom Y will have a different ppm in the first dimension than in the pulsed 2nd dimension. ...
... If no atoms are w/in 5Å of each other, then no chemical shifts will change in the 2nd dimension. If an there is an atom “Y” within 5Å of the atom absorbing energy in dimension 1 (atom “X”), then atom Y will have a different ppm in the first dimension than in the pulsed 2nd dimension. ...
Elucidating the Rice Cells Metabolism under Flooding and Drought
... cytosol malate transporters in recycling the ammonia liberated during photorespiration and in ...
... cytosol malate transporters in recycling the ammonia liberated during photorespiration and in ...
PYRUVATE OXIDATION, KREBS CYCLE agnes je... 583KB Nov 04
... 2 pyruvate + 2 NAD + 2 CoA -> 2 acetyl-CoA + 2 NADH + 2H2+ 2 CO2 • acetyl CoA - central molecule in energy metabolism o proteins, lipids, can also be broken down into acetyl CoA o can produce fat or ATP, depending on ATP levels in the cell ...
... 2 pyruvate + 2 NAD + 2 CoA -> 2 acetyl-CoA + 2 NADH + 2H2+ 2 CO2 • acetyl CoA - central molecule in energy metabolism o proteins, lipids, can also be broken down into acetyl CoA o can produce fat or ATP, depending on ATP levels in the cell ...
Lesson Overview
... 5-carbon sugar, a phosphate group, and a nitrogen base. Protein polymers are: proteins such as hemoglobin Protein monomers are: amino acids that are linked to each other by peptide bonds to make polypeptides called ...
... 5-carbon sugar, a phosphate group, and a nitrogen base. Protein polymers are: proteins such as hemoglobin Protein monomers are: amino acids that are linked to each other by peptide bonds to make polypeptides called ...
Oils and Fats
... 2- In the determination of S.V., Ph.Ph. is used as indicator (M.O. can not be used), when excess potassium hydroxide is back titrated with standard HCl solutin. 3- Alcoholic KOH is used for the S.V. of oils and fats, while aqueous KOH is used for saponification of oils and fats in case of Richert-Me ...
... 2- In the determination of S.V., Ph.Ph. is used as indicator (M.O. can not be used), when excess potassium hydroxide is back titrated with standard HCl solutin. 3- Alcoholic KOH is used for the S.V. of oils and fats, while aqueous KOH is used for saponification of oils and fats in case of Richert-Me ...
Methods of industrial production 1
... Various carbohydrates are utilized individually or as a mixture for the production of L-lysine such as glucose, fructose, sucrose, molasses (sucrose, glucose, fructose etc.), maltose, blackstrap molasses, starch hydrolyzate (glucose, oligosaccharides), lactose, maltose, starch and starch hydrolysate ...
... Various carbohydrates are utilized individually or as a mixture for the production of L-lysine such as glucose, fructose, sucrose, molasses (sucrose, glucose, fructose etc.), maltose, blackstrap molasses, starch hydrolyzate (glucose, oligosaccharides), lactose, maltose, starch and starch hydrolysate ...
Insulin
... ◊ G6PO4 does not fit onto the transporter ◊ Liver alone has an enzyme to reverse the reaction, allowing liver to release glucose to blood if blood glucose is low. ◘ This occurs under the action of the hormone glucagon, which is produced by pancreatic beta cells ...
... ◊ G6PO4 does not fit onto the transporter ◊ Liver alone has an enzyme to reverse the reaction, allowing liver to release glucose to blood if blood glucose is low. ◘ This occurs under the action of the hormone glucagon, which is produced by pancreatic beta cells ...
Exam I - chem.uwec.edu
... d. Whereas DNA is made as a polymer with four different options for each nucleotide residue, a protein is made as a polymer with twenty different options for each amino acid residue. As you did for DNA in the Question 3c, in a short paragraph, describe how the 3-dimensional structures of proteins ma ...
... d. Whereas DNA is made as a polymer with four different options for each nucleotide residue, a protein is made as a polymer with twenty different options for each amino acid residue. As you did for DNA in the Question 3c, in a short paragraph, describe how the 3-dimensional structures of proteins ma ...
Biochemistry Lecture 4 9/6/01
... • At neutral pH, exist as dipolar, or zwitterion, where amino grp exists as NH3+, carboxyl grp exists as COO- ...
... • At neutral pH, exist as dipolar, or zwitterion, where amino grp exists as NH3+, carboxyl grp exists as COO- ...
On the Propeller Structure of Isolated Watson
... The nucleotide sequence dependence of the D N A and R N A secondary structure is a problem of current interest in molecular biophysics. The key role of stacking interactions in determining this dependence is widely accepted [1, 2], It is be lieved that the propeller twisting of base pairs, ob serv ...
... The nucleotide sequence dependence of the D N A and R N A secondary structure is a problem of current interest in molecular biophysics. The key role of stacking interactions in determining this dependence is widely accepted [1, 2], It is be lieved that the propeller twisting of base pairs, ob serv ...
Origins of Life - My George School
... Earliest undisputed fossils are roughly 1.8 billion years old ...
... Earliest undisputed fossils are roughly 1.8 billion years old ...
Proteolytic activation
... -Protein phosphatases reverse the effects of kinases by catalyzing the removal of phosphoryl groups attacked to proteins. -Hydroxyl-containing side chain is regenerated and Pi is produced. -Vital role in cells because the enzymes turn off the signals -One class of highly conserved phosphatase call ...
... -Protein phosphatases reverse the effects of kinases by catalyzing the removal of phosphoryl groups attacked to proteins. -Hydroxyl-containing side chain is regenerated and Pi is produced. -Vital role in cells because the enzymes turn off the signals -One class of highly conserved phosphatase call ...
Introduction
... at least 2 peptide linkages in its molecule, e.g. proteins, peptides (except dipeptides) and biuret (formed by heating urea). If the protein solution is treated with solutions of diluted CuSO4 and sodium hydroxide, a violet or pink color is produced due to the formation of violet – or pink – colored ...
... at least 2 peptide linkages in its molecule, e.g. proteins, peptides (except dipeptides) and biuret (formed by heating urea). If the protein solution is treated with solutions of diluted CuSO4 and sodium hydroxide, a violet or pink color is produced due to the formation of violet – or pink – colored ...
Bellwork:
... use during protein synthesis. Same process as replication, but only one side of the DNA strand is copied. This occurs in the nucleus. When RNA is made it leaves the nucleus (through pores in the membrane) and the DNA strand zips back up. ...
... use during protein synthesis. Same process as replication, but only one side of the DNA strand is copied. This occurs in the nucleus. When RNA is made it leaves the nucleus (through pores in the membrane) and the DNA strand zips back up. ...
Chapter 4
... The charge the atom would have in a molecule (or an ionic compound) if electrons were completely transferred. 1. Free elements (uncombined state) have an oxidation number of zero. ...
... The charge the atom would have in a molecule (or an ionic compound) if electrons were completely transferred. 1. Free elements (uncombined state) have an oxidation number of zero. ...
©2011 The Simple Homeschool – Simple Days Unit Studies
... b. Any of a group of organic compounds that includes the fats, oils, waxes, sterols, and ...
... b. Any of a group of organic compounds that includes the fats, oils, waxes, sterols, and ...
national unit specification: general information
... Candidate will demonstrate knowledge of the role of enzymes. You will study an overview of the role of enzymes, their structure and function and methods for determining enzyme activity. You will become aware of the central role of enzymes in metabolism and their specificity. Outcome 2 Candidate will ...
... Candidate will demonstrate knowledge of the role of enzymes. You will study an overview of the role of enzymes, their structure and function and methods for determining enzyme activity. You will become aware of the central role of enzymes in metabolism and their specificity. Outcome 2 Candidate will ...
16 Proteins/Vitamins
... lacks lysine and tryptophan lacks lysine and threonine lacks lysine lacks methionine (need 2g/day of this one) ...
... lacks lysine and tryptophan lacks lysine and threonine lacks lysine lacks methionine (need 2g/day of this one) ...
INHER TED D SEASES OF AM NO AC D METABOL SM pw
... Sensitive to damage from sunlight and must take added precaution against UV ...
... Sensitive to damage from sunlight and must take added precaution against UV ...
Enzyme - kyoussef-mci
... • Enzymes can only work with certain substrates • The shape of the enzyme must match the shape of its substrate - The root of the enzyme’s name typically indicates the substrate which it acts upon e.g. ATPase, Amylase, Sucrase ...
... • Enzymes can only work with certain substrates • The shape of the enzyme must match the shape of its substrate - The root of the enzyme’s name typically indicates the substrate which it acts upon e.g. ATPase, Amylase, Sucrase ...
Chemical Reactions - hrsbstaff.ednet.ns.ca
... What is a chemical reaction? • A chemical reaction is a chemical change where chemical substances (called reactants) react to give new chemical substances (called products). • Example – The combustion of hydrogen in oxygen is a chemical reaction which gives water. • Hydrogen and Oxygen are the reac ...
... What is a chemical reaction? • A chemical reaction is a chemical change where chemical substances (called reactants) react to give new chemical substances (called products). • Example – The combustion of hydrogen in oxygen is a chemical reaction which gives water. • Hydrogen and Oxygen are the reac ...
Metabolism
Metabolism (from Greek: μεταβολή metabolē, ""change"") is the set of life-sustaining chemical transformations within the cells of living organisms. These enzyme-catalyzed reactions allow organisms to grow and reproduce, maintain their structures, and respond to their environments. The word metabolism can also refer to all chemical reactions that occur in living organisms, including digestion and the transport of substances into and between different cells, in which case the set of reactions within the cells is called intermediary metabolism or intermediate metabolism.Metabolism is usually divided into two categories: catabolism, the breaking down of organic matter by way of cellular respiration, and anabolism, the building up of components of cells such as proteins and nucleic acids. Usually, breaking down releases energy and building up consumes energy.The chemical reactions of metabolism are organized into metabolic pathways, in which one chemical is transformed through a series of steps into another chemical, by a sequence of enzymes. Enzymes are crucial to metabolism because they allow organisms to drive desirable reactions that require energy that will not occur by themselves, by coupling them to spontaneous reactions that release energy. Enzymes act as catalysts that allow the reactions to proceed more rapidly. Enzymes also allow the regulation of metabolic pathways in response to changes in the cell's environment or to signals from other cells.The metabolic system of a particular organism determines which substances it will find nutritious and which poisonous. For example, some prokaryotes use hydrogen sulfide as a nutrient, yet this gas is poisonous to animals. The speed of metabolism, the metabolic rate, influences how much food an organism will require, and also affects how it is able to obtain that food.A striking feature of metabolism is the similarity of the basic metabolic pathways and components between even vastly different species. For example, the set of carboxylic acids that are best known as the intermediates in the citric acid cycle are present in all known organisms, being found in species as diverse as the unicellular bacterium Escherichia coli and huge multicellular organisms like elephants. These striking similarities in metabolic pathways are likely due to their early appearance in evolutionary history, and their retention because of their efficacy.