The Chemical Composition of the Cell Wall in some
... In most cases strains of known origin have been used, either from the NCTC or NCIB. These were checked for purity, but not investigated further. Strains of Corynebacterium diphtheriae had been isolated from cases, and had the typical morphology and fermentation reactions. Strains of C . hofmanni iso ...
... In most cases strains of known origin have been used, either from the NCTC or NCIB. These were checked for purity, but not investigated further. Strains of Corynebacterium diphtheriae had been isolated from cases, and had the typical morphology and fermentation reactions. Strains of C . hofmanni iso ...
From Sequence to Structure
... Alanine and leucine are strong helix-favoring residues, while proline is rarely found in helices because its backbone nitrogen is not available for the hydrogen bonding required for helix formation. The aromatic side chain of phenylalanine can sometimes participate in weakly polar interactions. Hydr ...
... Alanine and leucine are strong helix-favoring residues, while proline is rarely found in helices because its backbone nitrogen is not available for the hydrogen bonding required for helix formation. The aromatic side chain of phenylalanine can sometimes participate in weakly polar interactions. Hydr ...
Cholesterol Synthesis
... Farnesyl pyrophosphate, an intermediate on the pathway for cholesterol synthesis, also serves also as precursor for synthesis of various non-steroidal isoprenoids. The importance of the other products of the pathway that originates with mevalonate is reflected in serious diseases that result from ge ...
... Farnesyl pyrophosphate, an intermediate on the pathway for cholesterol synthesis, also serves also as precursor for synthesis of various non-steroidal isoprenoids. The importance of the other products of the pathway that originates with mevalonate is reflected in serious diseases that result from ge ...
Conclusion - Federal Register of Legislation
... The Vip3Aa20 protein is 99.7% identical to the native Vip3Aa1 protein, differing by two amino acids, at positions 129 and 284. The amino acid change at position 129 occurred during the plant transformation process. Apart from the unexpected amino acid change at position 129, both proteins conform in ...
... The Vip3Aa20 protein is 99.7% identical to the native Vip3Aa1 protein, differing by two amino acids, at positions 129 and 284. The amino acid change at position 129 occurred during the plant transformation process. Apart from the unexpected amino acid change at position 129, both proteins conform in ...
1 Development of Bombesin Analogues With Conformationally
... µg of Iodo-Gen solution (0.02 µg/µl in chloroform) was added to a 5 ml plastic test tube, dried under nitrogen, and washed with 100 µl of 0.5 M potassium phosphate solution (pH 7.4). To this tube 20 µl of potassium phosphate solution (pH 7.4), 8 µg of peptide in 4 µl of water and 2 mCi (20 µl) of Na ...
... µg of Iodo-Gen solution (0.02 µg/µl in chloroform) was added to a 5 ml plastic test tube, dried under nitrogen, and washed with 100 µl of 0.5 M potassium phosphate solution (pH 7.4). To this tube 20 µl of potassium phosphate solution (pH 7.4), 8 µg of peptide in 4 µl of water and 2 mCi (20 µl) of Na ...
Inhibitors are structural analogs of true substrate
... of various genes from template-RNA to DNA in genetic engineering (this enzyme catalyzes the process detected in RNAviruses)? ...
... of various genes from template-RNA to DNA in genetic engineering (this enzyme catalyzes the process detected in RNAviruses)? ...
E. coli
... The property that distinguishes these two groups is the presence of the EPEC adherence factor plasmid (pEAF), which is only found in tEPEC aEPEC strains are emerging enteropathogens that have been detected worldwide The large variety of serotypes and genetic virulence properties of aEPEC strai ...
... The property that distinguishes these two groups is the presence of the EPEC adherence factor plasmid (pEAF), which is only found in tEPEC aEPEC strains are emerging enteropathogens that have been detected worldwide The large variety of serotypes and genetic virulence properties of aEPEC strai ...
Free Amino Acid and Reducing Sugar Composition of Pandan
... produced more ACPY than fructosyl-proline system when heated at pH 7.0. Free amino acids are listed in Table 2. In this study glutamic acid was the major free amino acid (0.41 mg/g), followed by aspartic acid, threonine, serine, histidine, alanine, and proline (0.12 mg/g). Amino acids previously rep ...
... produced more ACPY than fructosyl-proline system when heated at pH 7.0. Free amino acids are listed in Table 2. In this study glutamic acid was the major free amino acid (0.41 mg/g), followed by aspartic acid, threonine, serine, histidine, alanine, and proline (0.12 mg/g). Amino acids previously rep ...
Transcriptional activity and role of plasmids of
... Bitter acid compounds derived from hops have long been viewed as the defining physiological stress for microorganisms growing in the niche environment of beer. Accordingly, hop-tolerance is viewed as the attribute that separates beer-spoiling lactic acid bacteria (LAB) from benign, or nonspoiling is ...
... Bitter acid compounds derived from hops have long been viewed as the defining physiological stress for microorganisms growing in the niche environment of beer. Accordingly, hop-tolerance is viewed as the attribute that separates beer-spoiling lactic acid bacteria (LAB) from benign, or nonspoiling is ...
Lehninger Principles of Biochemistry
... Regulation of Pyruvate Kinase Pyruvate kinase is inhibited by: ATP acetyl-CoA long-chain fatty acids High concentrations of ATP signals that glycolysis is not needed for further production of ATP. Acetyl-CoA and fatty acids are fuels for the citric acid cycle. When there is plenty of fuel for the c ...
... Regulation of Pyruvate Kinase Pyruvate kinase is inhibited by: ATP acetyl-CoA long-chain fatty acids High concentrations of ATP signals that glycolysis is not needed for further production of ATP. Acetyl-CoA and fatty acids are fuels for the citric acid cycle. When there is plenty of fuel for the c ...
The Role of Cyclin B in Meiosis I
... ROGRESS through the cell cycle in eukaryotes is regulated both by external signals (such as growth factors, mating factors, and fertilization) and the synthesis or modification of internal regulators. In mammalian somatic tissue culture cells, for example, the major regulatory events controlling cel ...
... ROGRESS through the cell cycle in eukaryotes is regulated both by external signals (such as growth factors, mating factors, and fertilization) and the synthesis or modification of internal regulators. In mammalian somatic tissue culture cells, for example, the major regulatory events controlling cel ...
Integrated Microbial Genomes
... •Production of novel therapeutic and preventive agents and pathways. •Energy generation and development of renewable energy sources (e.g., methane and hydrogen). •Production of chemical catalysts, reagents, and enzymes to improve efficiency of industrial processes. •Management of environmental carbo ...
... •Production of novel therapeutic and preventive agents and pathways. •Energy generation and development of renewable energy sources (e.g., methane and hydrogen). •Production of chemical catalysts, reagents, and enzymes to improve efficiency of industrial processes. •Management of environmental carbo ...
The Structure of the PanD/PanZ Protein Complex
... 2009; Levitin et al., 2005). In most cases these post-translational modifications are autocatalytic, but the reaction rates of a subset of enzymes have been shown to be enhanced by accessory proteins (McDonald et al., 1998), although the structural basis for such enhancement has not been determined. ...
... 2009; Levitin et al., 2005). In most cases these post-translational modifications are autocatalytic, but the reaction rates of a subset of enzymes have been shown to be enhanced by accessory proteins (McDonald et al., 1998), although the structural basis for such enhancement has not been determined. ...
Biotechnology and Bioengineering
... were able to produce only tyrosol from 2-phenylethanol, leading to exclusively para hydroxylation. In addition, the double mutants also showed enhanced catalytic activity compared to wild-type ToMO, among which E103G/F176T had the highest kcat value (13-fold increase). It was concluded that the regi ...
... were able to produce only tyrosol from 2-phenylethanol, leading to exclusively para hydroxylation. In addition, the double mutants also showed enhanced catalytic activity compared to wild-type ToMO, among which E103G/F176T had the highest kcat value (13-fold increase). It was concluded that the regi ...
A model for mis-sense error in protein synthesis: mis
... Corresponding author(E-mail: [email protected]) ...
... Corresponding author(E-mail: [email protected]) ...
A comparison of scoring functions for protein sequence
... Motivation: In recent years, several methods have been proposed for aligning two protein sequence profiles, with reported improvements in alignment accuracy and homolog discrimination versus sequence-sequence methods (e.g. BLAST) and profile-sequence methods (e.g. PSIBLAST). Profile-profile alignmen ...
... Motivation: In recent years, several methods have been proposed for aligning two protein sequence profiles, with reported improvements in alignment accuracy and homolog discrimination versus sequence-sequence methods (e.g. BLAST) and profile-sequence methods (e.g. PSIBLAST). Profile-profile alignmen ...
Get PDF - Wiley Online Library
... for nitrogen fixation (Lodwig et al., 2003). Biological nitrogen fixation is a very energy-intensive process, which (dependent on the organism) consumes between 16 and 42 molecules of ATP for every two molecules of NH3 synthesized (O’Brian, 1996). Downregulation of gene expression in bacteroids incl ...
... for nitrogen fixation (Lodwig et al., 2003). Biological nitrogen fixation is a very energy-intensive process, which (dependent on the organism) consumes between 16 and 42 molecules of ATP for every two molecules of NH3 synthesized (O’Brian, 1996). Downregulation of gene expression in bacteroids incl ...
Isolation and characterization of (S)
... obtained (Kutchan, 1995). Alkaloids are a group of naturally occurring low-molecular weight nitrogenous compounds found in about 20% of plant species. The majority of alkaloids in plants are derived from the amino acids tyrosine, tryptophan and phenylalanine. They are often basic and contain nitroge ...
... obtained (Kutchan, 1995). Alkaloids are a group of naturally occurring low-molecular weight nitrogenous compounds found in about 20% of plant species. The majority of alkaloids in plants are derived from the amino acids tyrosine, tryptophan and phenylalanine. They are often basic and contain nitroge ...
6 Energy and Metabolism
... • Adenosine triphosphate (ATP) is used in cells as a coenzyme. It is often called the "molecular unit of currency" of intracellular energy transfer. • ATP transports chemical energy within cells for metabolism. It is one of the end products of phosphorylation and cellular respiration and used in man ...
... • Adenosine triphosphate (ATP) is used in cells as a coenzyme. It is often called the "molecular unit of currency" of intracellular energy transfer. • ATP transports chemical energy within cells for metabolism. It is one of the end products of phosphorylation and cellular respiration and used in man ...
Enzyme -3. Factors affecting enzyme activity Lecture NO: 1st MBBS
... • These imposters often have structures that are similar to those of the normal substrate • Competitive inhibition can be reversed by ↑ing the Substrate or decreasing the conc. Of the Inhibitor • In competitive inhibition, at any given moment, inhibitor is bound to enzyme or the product or neither. ...
... • These imposters often have structures that are similar to those of the normal substrate • Competitive inhibition can be reversed by ↑ing the Substrate or decreasing the conc. Of the Inhibitor • In competitive inhibition, at any given moment, inhibitor is bound to enzyme or the product or neither. ...
Proteolysis
Proteolysis is the breakdown of proteins into smaller polypeptides or amino acids. Uncatalysed, the hydrolysis of peptide bonds is extremely slow, taking hundreds of years. Proteolysis is typically catalysed by cellular enzymes called proteases, but may also occur by intra-molecular digestion. Low pH or high temperatures can also cause proteolysis non-enzymatically.Proteolysis in organisms serves many purposes; for example, digestive enzymes break down proteins in food to provide amino acids for the organism, while proteolytic processing of a polypeptide chain after its synthesis may be necessary for the production of an active protein. It is also important in the regulation of some physiological and cellular processes, as well as preventing the accumulation of unwanted or abnormal proteins in cells. Consequently, dis-regulation of proteolysis can cause diseases, and is used in some venoms to damage their prey.Proteolysis is important as an analytical tool for studying proteins in the laboratory, as well as industrially, for example in food processing and stain removal.