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... We present and evaluate a model for the secondary structure and membrane orientation of 3-hydroxy-3methylglutaryl coenzyme A reductase, the glycoprotein of the endoplasmic reticulum that controls the rate of cholesterol biosynthesis. This model is derived from proteolysis experiments that separate t ...
... We present and evaluate a model for the secondary structure and membrane orientation of 3-hydroxy-3methylglutaryl coenzyme A reductase, the glycoprotein of the endoplasmic reticulum that controls the rate of cholesterol biosynthesis. This model is derived from proteolysis experiments that separate t ...
47_Biochemistry of Connective Tissue
... Biosynthesis of Collagen Collagen synthesis occurs in the fibroblasts, osteoblasts in bone, chondroblasts in cartilage and odontoblasts in teeth. First synthesized in precursor form of preprocollagen polypeptide chain in the ribosomes during translation The leader sequence of amino acids[sign ...
... Biosynthesis of Collagen Collagen synthesis occurs in the fibroblasts, osteoblasts in bone, chondroblasts in cartilage and odontoblasts in teeth. First synthesized in precursor form of preprocollagen polypeptide chain in the ribosomes during translation The leader sequence of amino acids[sign ...
Table 4–2. SOURCES, FUNCTIONS, AND EFFECTS OF VITAMINS
... neurologic deficits Toxicity: Tendency to bleed Deficiency: Bleeding due to deficiency of prothrombin and other factors, osteopenia ...
... neurologic deficits Toxicity: Tendency to bleed Deficiency: Bleeding due to deficiency of prothrombin and other factors, osteopenia ...
DFT Chemical Reactivity Analysis of Biological Molecules in the
... ionization potential value, which indicates they will oxidize more easily in the presence of the silver ion [43]. There are some EA negative values because the energy of biological molecules is not absorbed, but released in the process of electron acceptance, namely it is required to supply energy i ...
... ionization potential value, which indicates they will oxidize more easily in the presence of the silver ion [43]. There are some EA negative values because the energy of biological molecules is not absorbed, but released in the process of electron acceptance, namely it is required to supply energy i ...
Chapter 6
... cannot be performed by other compounds • Protein is used for fuel primarily when total energy or carbohydrate intake is low ...
... cannot be performed by other compounds • Protein is used for fuel primarily when total energy or carbohydrate intake is low ...
CHAPTER 16 - CITRIC ACID CYCLE Introduction:
... - The catalytic nature of the citric acid cycle was originally suggested by the finding that addition of small amounts of various dicarboxylic and tricarboxylic acids greatly accelerated the rate of oxygen consumption in muscle tissue, beyond expectations based on the oxidative capacity of the acid ...
... - The catalytic nature of the citric acid cycle was originally suggested by the finding that addition of small amounts of various dicarboxylic and tricarboxylic acids greatly accelerated the rate of oxygen consumption in muscle tissue, beyond expectations based on the oxidative capacity of the acid ...
RESPIRATION Metabolic processes that need energy include
... Triglycerides are hydrolysed by lipase to fatty acids and glycerol. Glycerol can be converted to glucose, and respired. Fatty acids cannot be respired. Fatty acids = long-chain hydrocarbons with a carboxylic acid group. In each molecule there is carbons and hydrogen atoms – source of many prot ...
... Triglycerides are hydrolysed by lipase to fatty acids and glycerol. Glycerol can be converted to glucose, and respired. Fatty acids cannot be respired. Fatty acids = long-chain hydrocarbons with a carboxylic acid group. In each molecule there is carbons and hydrogen atoms – source of many prot ...
BIOCHEMISTRY Which of the following single
... It is used in the synthesis of DNA. It contains 3 phosphate bonds for energy storage. It is used to drive thermodynamically unfavorable reactions. It is produced mainly by substrate level phosphorylation. ...
... It is used in the synthesis of DNA. It contains 3 phosphate bonds for energy storage. It is used to drive thermodynamically unfavorable reactions. It is produced mainly by substrate level phosphorylation. ...
Moonlighting proteins—an update
... Different methods have been reported for a moonlighting protein to switch between functions, including secretion into the extracellular space, interactions with DNA or RNA, a change in temperature, a change in the redox state of the cell, a change in oligomeric state of the protein, interactions with ...
... Different methods have been reported for a moonlighting protein to switch between functions, including secretion into the extracellular space, interactions with DNA or RNA, a change in temperature, a change in the redox state of the cell, a change in oligomeric state of the protein, interactions with ...
Click Here to download this tutorial as a PDF
... acids that the hydrogen bond connects and then use the hbonds off command. When Jmol calculates hydrogen bonds, it occasionally inserts a hydrogen bond between two amino acids on the same strand, with a single amino acid between the two. These types of hydrogen bonds create what almost looks like a ...
... acids that the hydrogen bond connects and then use the hbonds off command. When Jmol calculates hydrogen bonds, it occasionally inserts a hydrogen bond between two amino acids on the same strand, with a single amino acid between the two. These types of hydrogen bonds create what almost looks like a ...
Section 3. Antimicrobial Sulfonamides and Antibacterial Synergists
... Antimetabolites are compounds that prevent the biosynthesis or use of normal cellular metabolites. The usually are closely related in structure to the metabolite that is antagonized. Many antimetabolites are enzyme inhibitors. They may combine with active site as if they were the substrate or cofact ...
... Antimetabolites are compounds that prevent the biosynthesis or use of normal cellular metabolites. The usually are closely related in structure to the metabolite that is antagonized. Many antimetabolites are enzyme inhibitors. They may combine with active site as if they were the substrate or cofact ...
Multilevel functional and structural defects induced by two
... Point mutations in hmtRNAs (human mitochondrial tRNAs) can cause various disorders, such as CPEO (chronic progressive external ophthalmoplegia) and MM (mitochondrial myopathy). Mitochondrial tRNALeu , especially the UUR codon isoacceptor, is recognized as a hot spot for pathogenic mtDNA point mutati ...
... Point mutations in hmtRNAs (human mitochondrial tRNAs) can cause various disorders, such as CPEO (chronic progressive external ophthalmoplegia) and MM (mitochondrial myopathy). Mitochondrial tRNALeu , especially the UUR codon isoacceptor, is recognized as a hot spot for pathogenic mtDNA point mutati ...
rapid determination of total lipids in mosquitoes
... suitable for the small amount of lipids found in individual mosquiroes. Chloroform-methanol is a much more efficient and widely used analytical lipid solvenr. The disadvantage is that the methanol in combination with tissul water also extracts non-lipid material such as glycerol, sugars, amino acids ...
... suitable for the small amount of lipids found in individual mosquiroes. Chloroform-methanol is a much more efficient and widely used analytical lipid solvenr. The disadvantage is that the methanol in combination with tissul water also extracts non-lipid material such as glycerol, sugars, amino acids ...
A first attempt to elucidate the amino acid sequence of some lichen
... Xanthoria parietina thalli (Fontaniella et al., 2004). Concanavalin A of C. ensiformis also develops arginase activity. This binding involves a ligand, probably a glycoprotein containing mannose, which can be isolated by affinity chromatography. Concanavalin A also brinds to the cell wall of Nosotoc ...
... Xanthoria parietina thalli (Fontaniella et al., 2004). Concanavalin A of C. ensiformis also develops arginase activity. This binding involves a ligand, probably a glycoprotein containing mannose, which can be isolated by affinity chromatography. Concanavalin A also brinds to the cell wall of Nosotoc ...
The colorimetric estimation of inorganic phosphate
... Introduction Inorganic phosphate react with ammonium molybdate in an acid solution to form phosphomolybdic acid. A reducing agent such as metol is added which reduces the molybdenum to give a blue colour but does not affect the uncombined. ...
... Introduction Inorganic phosphate react with ammonium molybdate in an acid solution to form phosphomolybdic acid. A reducing agent such as metol is added which reduces the molybdenum to give a blue colour but does not affect the uncombined. ...
Biosynthesis
Biosynthesis (also called biogenesis or anabolism) is a multi-step, enzyme-catalyzed process where substrates are converted into more complex products in living organisms. In biosynthesis, simple compounds are modified, converted into other compounds, or joined together to form macromolecules. This process often consists of metabolic pathways. Some of these biosynthetic pathways are located within a single cellular organelle, while others involve enzymes that are located within multiple cellular organelles. Examples of these biosynthetic pathways include the production of lipid membrane components and nucleotides.The prerequisite elements for biosynthesis include: precursor compounds, chemical energy (e.g. ATP), and catalytic enzymes which may require coenzymes (e.g.NADH, NADPH). These elements create monomers, the building blocks for macromolecules. Some important biological macromolecules include: proteins, which are composed of amino acid monomers joined via peptide bonds, and DNA molecules, which are composed of nucleotides joined via phosphodiester bonds.