Spectroscopic Techniques: I Spectrophotometric Techniques
... aromatic side chains gives rise to a band at 278 nm. Cystine (Cys2) possesses a weak absorption maximum of similar strength as phenylalanine at 250 nm. This band can play a role in rare cases in protein optical activity or protein fluorescence. Proteins that contain prosthetic groups (e.g. haem, fl ...
... aromatic side chains gives rise to a band at 278 nm. Cystine (Cys2) possesses a weak absorption maximum of similar strength as phenylalanine at 250 nm. This band can play a role in rare cases in protein optical activity or protein fluorescence. Proteins that contain prosthetic groups (e.g. haem, fl ...
Strain in Protein Structures as Viewed Through Nonrotameric Side
... freedom to attain multiple rotamers, because a part of its side chain forms the backbone. By using data from 19 well-refined crystallographic structures, Ponder and Richards6 assembled a library of rotamers for each amino acid type based on clustering techniques. They observed that most side chains ...
... freedom to attain multiple rotamers, because a part of its side chain forms the backbone. By using data from 19 well-refined crystallographic structures, Ponder and Richards6 assembled a library of rotamers for each amino acid type based on clustering techniques. They observed that most side chains ...
A Substrate Serves as a Hydrogen Atom Donor in the Enzyme
... enzyme-initiated catalysis. Bioinformatic analysis indicated that the maize lipoxygenase-1 is structurally more similar to soybean LOX1 than pea LOXN2 in that it has an additional external loop (residues 318-351) in the carboxy-terminal catalytic domain. We analyzed the dependence of product distrib ...
... enzyme-initiated catalysis. Bioinformatic analysis indicated that the maize lipoxygenase-1 is structurally more similar to soybean LOX1 than pea LOXN2 in that it has an additional external loop (residues 318-351) in the carboxy-terminal catalytic domain. We analyzed the dependence of product distrib ...
Biosketch - NC State University
... overload and oxidative stress. In both rodent and cell culture models, we will examine the metabolic consequences of deficient or enhanced antioxidant defense via pharmacologic, nutritional and genetic maneuvers. Role: PI NIH NIDDK (Kien/Muoio) ...
... overload and oxidative stress. In both rodent and cell culture models, we will examine the metabolic consequences of deficient or enhanced antioxidant defense via pharmacologic, nutritional and genetic maneuvers. Role: PI NIH NIDDK (Kien/Muoio) ...
The interplay between metabolic homeostasis and
... Adipose triglycerides represent the largest energy reserve in the human body. Within all cell types, triacylglycerols are stored as cytoplasmic lipid droplets or fat droplets that are enclosed by a monolayer of phospholipids and hydrophobic proteins. Fatty acids that arise from the breakdown of tria ...
... Adipose triglycerides represent the largest energy reserve in the human body. Within all cell types, triacylglycerols are stored as cytoplasmic lipid droplets or fat droplets that are enclosed by a monolayer of phospholipids and hydrophobic proteins. Fatty acids that arise from the breakdown of tria ...
Mineralization of Drugs in Aqueous Medium by Advanced Oxidation
... plants have been detected [1-3]. To avoid the dangerous accumulation of drugs in the aquatic environment, research efforts are underway to develop powerful oxidation methods that can be applied to ensure their complete destruction from natural waters and wastewaters. Although different isolation, ph ...
... plants have been detected [1-3]. To avoid the dangerous accumulation of drugs in the aquatic environment, research efforts are underway to develop powerful oxidation methods that can be applied to ensure their complete destruction from natural waters and wastewaters. Although different isolation, ph ...
Preparatory Problems - American Chemical Society
... (If an efficient and low-cost method can be found to regenerate H 3N–BH3 from BNH, the substance could be used to generate hydrogen in fuel-cell powered applications.) Further heating polyborazylene results in boron nitride, BN. Boron nitride exists in several forms, the most common polymorph being ...
... (If an efficient and low-cost method can be found to regenerate H 3N–BH3 from BNH, the substance could be used to generate hydrogen in fuel-cell powered applications.) Further heating polyborazylene results in boron nitride, BN. Boron nitride exists in several forms, the most common polymorph being ...
Molecular genetics of the extracellular lipase of
... Lipases are triacylglycerol acylhydrolases (EC 3.1.1.3) that preferentially hydrolyse emulsified triglycerides. In organic solvents, lipases are also able to catalyse reverse reactions, e.g. the synthesis of esters, and transesterifications. The reaction mechanism postulated for the catalytic activi ...
... Lipases are triacylglycerol acylhydrolases (EC 3.1.1.3) that preferentially hydrolyse emulsified triglycerides. In organic solvents, lipases are also able to catalyse reverse reactions, e.g. the synthesis of esters, and transesterifications. The reaction mechanism postulated for the catalytic activi ...
study material(2014-15) class xii-chemistry
... Students‘ common errors, un-attempted questions and their remediation. Reviewed Support Materials of the previous year. In order to ensure that the participants come well-prepared for the Workshop, the topics/chapters were distributed among them well in advance. During the Workshop the materials pre ...
... Students‘ common errors, un-attempted questions and their remediation. Reviewed Support Materials of the previous year. In order to ensure that the participants come well-prepared for the Workshop, the topics/chapters were distributed among them well in advance. During the Workshop the materials pre ...
- Te Kura
... expected to complete the teacher-marked assignment CH3001A. The theme of this resource is how chemists use the Periodic Table as a tool to help them make sense of chemistry. If you have difficulty with these concepts, it is advisable to enrol in CH2000 first, before continuing with CH3000. Keep this ...
... expected to complete the teacher-marked assignment CH3001A. The theme of this resource is how chemists use the Periodic Table as a tool to help them make sense of chemistry. If you have difficulty with these concepts, it is advisable to enrol in CH2000 first, before continuing with CH3000. Keep this ...
Role of Na and K in Enzyme Function
... pressure near a set-point value (29, 68). Vasopressin increases the volume of circulating water by acting on renal collecting ducts via activation of V2 receptors. Intracellular trafficking of aquaporin channels directs them to cell membranes and increases cell permeability and reabsorption (3, 113, ...
... pressure near a set-point value (29, 68). Vasopressin increases the volume of circulating water by acting on renal collecting ducts via activation of V2 receptors. Intracellular trafficking of aquaporin channels directs them to cell membranes and increases cell permeability and reabsorption (3, 113, ...
LIP Lactate inflection point
... • identify the LIP on a graph • understand why lactate accumulates beyond LIP • describe the impact of exercise intensities beyond LIP on ...
... • identify the LIP on a graph • understand why lactate accumulates beyond LIP • describe the impact of exercise intensities beyond LIP on ...
HHMI meeting, FOLDING
... The idea was: intermediates will help to trace the folding pathway, - like intermediates in a biochemical reaction trace its pathway. This was a “chemical logic”. However, although protein folding intermediates (like MG) were found for many proteins, the main question as to how the protein chain can ...
... The idea was: intermediates will help to trace the folding pathway, - like intermediates in a biochemical reaction trace its pathway. This was a “chemical logic”. However, although protein folding intermediates (like MG) were found for many proteins, the main question as to how the protein chain can ...
chemistry-resource
... Students’ common errors, un-attempted questions and their remediation. Reviewed Support Materials of the previous year. In order to ensure that the participants come well-prepared for the Workshop, the topics/chapters were distributed among them well in advance. During the Workshop the materials pre ...
... Students’ common errors, un-attempted questions and their remediation. Reviewed Support Materials of the previous year. In order to ensure that the participants come well-prepared for the Workshop, the topics/chapters were distributed among them well in advance. During the Workshop the materials pre ...
Proteases - Home - KSU Faculty Member websites
... Also known as angiotensinogenase. It is made by the juxtaglomerular cells in the kidney, released into the blood stream and acts to convert angiotensionogen into angiotensin I. It is an aspartyl protease having a molecular weight of about 40.000 Renin is elevated in some forms of hypertension. • cat ...
... Also known as angiotensinogenase. It is made by the juxtaglomerular cells in the kidney, released into the blood stream and acts to convert angiotensionogen into angiotensin I. It is an aspartyl protease having a molecular weight of about 40.000 Renin is elevated in some forms of hypertension. • cat ...
Practice Exam I FR Answers and Explanations
... The carbonate ion appears to have one double bond and two single bonds. Single bonds are longer than double bonds. None of the resonance structures above actually exist. The true structure is a composite of the three diagrams. Therefore, all of the bonds are about 1 and 1/3 of a bond ---not single a ...
... The carbonate ion appears to have one double bond and two single bonds. Single bonds are longer than double bonds. None of the resonance structures above actually exist. The true structure is a composite of the three diagrams. Therefore, all of the bonds are about 1 and 1/3 of a bond ---not single a ...
PPTX - Bonham Chemistry
... • These alcohols have a more complex molecular structure than ethyl alcohol. • They provide an initial sweetness followed by a harsh after taste. • Formed by the metabolism of amino acids, so over modification during malting or mashing can lead to higher fusel alcohol levels. • They increase with fe ...
... • These alcohols have a more complex molecular structure than ethyl alcohol. • They provide an initial sweetness followed by a harsh after taste. • Formed by the metabolism of amino acids, so over modification during malting or mashing can lead to higher fusel alcohol levels. • They increase with fe ...
Zaenab Aljassim thesis-6_1
... depending on the population demographics. DNA, cellular fractions of the pathogen, and subunit vaccines failed to provide protection beyond what the BCG vaccine can provide. Streptomyces, phylogenetic relatives of the mycobacteria, have been suggested as heterologous systems to formulate new vaccine ...
... depending on the population demographics. DNA, cellular fractions of the pathogen, and subunit vaccines failed to provide protection beyond what the BCG vaccine can provide. Streptomyces, phylogenetic relatives of the mycobacteria, have been suggested as heterologous systems to formulate new vaccine ...
Affinity Chromatography
... In this seminal paper, the general principles and potential application of affinity chromatography were enunciated and have largely remained unchanged until the present date. The paper contained several important contributions. First, it generalized the technique to all potential enzyme purification ...
... In this seminal paper, the general principles and potential application of affinity chromatography were enunciated and have largely remained unchanged until the present date. The paper contained several important contributions. First, it generalized the technique to all potential enzyme purification ...
Calculations with Chemical Formulas and Chemical Reactions
... individual atomic weights of all atoms or ions present in one particle of the substance. The average atomic weight of an element is generally found at the bottom of the element block (Figure 7.1) ...
... individual atomic weights of all atoms or ions present in one particle of the substance. The average atomic weight of an element is generally found at the bottom of the element block (Figure 7.1) ...
Active Learning Questions
... 67. Monochloroacetic acid, HC2H2ClO2, is a skin irritant that is used in “chemical peels” intended to remove the top layer of dead skin from the face and ultimately improve the complexion. The value of Ka for monochloroacetic acid is 1.35 103. Calculate the pH of a 0.10 M solution of monochloroac ...
... 67. Monochloroacetic acid, HC2H2ClO2, is a skin irritant that is used in “chemical peels” intended to remove the top layer of dead skin from the face and ultimately improve the complexion. The value of Ka for monochloroacetic acid is 1.35 103. Calculate the pH of a 0.10 M solution of monochloroac ...
Molecular Cloning of Dog Mast Cell Tryptase and a Related Protease
... a secretory granule associated serine protease with trypsin-like specificity released extracellularly during mast cell degranulation. To determine the full primary structure of the catalytic domain and precursor forms of tryptase and to gain insight into its mode of activation, we cloned cDNAs codin ...
... a secretory granule associated serine protease with trypsin-like specificity released extracellularly during mast cell degranulation. To determine the full primary structure of the catalytic domain and precursor forms of tryptase and to gain insight into its mode of activation, we cloned cDNAs codin ...
Biochemistry
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Biochemistry, sometimes called biological chemistry, is the study of chemical processes within and relating to living organisms. By controlling information flow through biochemical signaling and the flow of chemical energy through metabolism, biochemical processes give rise to the complexity of life. Over the last decades of the 20th century, biochemistry has become so successful at explaining living processes that now almost all areas of the life sciences from botany to medicine to genetics are engaged in biochemical research. Today, the main focus of pure biochemistry is in understanding how biological molecules give rise to the processes that occur within living cells, which in turn relates greatly to the study and understanding of whole organisms.Biochemistry is closely related to molecular biology, the study of the molecular mechanisms by which genetic information encoded in DNA is able to result in the processes of life. Depending on the exact definition of the terms used, molecular biology can be thought of as a branch of biochemistry, or biochemistry as a tool with which to investigate and study molecular biology.Much of biochemistry deals with the structures, functions and interactions of biological macromolecules, such as proteins, nucleic acids, carbohydrates and lipids, which provide the structure of cells and perform many of the functions associated with life. The chemistry of the cell also depends on the reactions of smaller molecules and ions. These can be inorganic, for example water and metal ions, or organic, for example the amino acids which are used to synthesize proteins. The mechanisms by which cells harness energy from their environment via chemical reactions are known as metabolism. The findings of biochemistry are applied primarily in medicine, nutrition, and agriculture. In medicine, biochemists investigate the causes and cures of disease. In nutrition, they study how to maintain health and study the effects of nutritional deficiencies. In agriculture, biochemists investigate soil and fertilizers, and try to discover ways to improve crop cultivation, crop storage and pest control.