Hydrogen Bonding - Chemwiki
... The + hydrogen is so strongly attracted to the lone pair that it is almost as if you were beginning to form a co-ordinate (dative covalent) bond. It doesn't go that far, but the attraction is significantly stronger than an ordinary dipole-dipole interaction. Hydrogen bonds have about a tenth of the ...
... The + hydrogen is so strongly attracted to the lone pair that it is almost as if you were beginning to form a co-ordinate (dative covalent) bond. It doesn't go that far, but the attraction is significantly stronger than an ordinary dipole-dipole interaction. Hydrogen bonds have about a tenth of the ...
(From the Department of Anatomy, State University of New
... was attributed to the more rapid opsonization of the carbon (17). Phagocytosis of particles in vivo may be a more complex mechanism as compared to phagocytosis of the same particle in vitro. Gold colloid suspended in saline was not phagocytized in the perfused liver but if stabilized by gelatin phag ...
... was attributed to the more rapid opsonization of the carbon (17). Phagocytosis of particles in vivo may be a more complex mechanism as compared to phagocytosis of the same particle in vitro. Gold colloid suspended in saline was not phagocytized in the perfused liver but if stabilized by gelatin phag ...
Electrophoresis Basi..
... Proteins and Electrophoresis Isozymes (isoenzymes): enzymes that differ in amino acid sequence but catalyze the same chemical reaction. Isozymes have different molecular weights and chemical properties and thus can be separated from each other during electrophoresis. Isozymes are coded by genes on d ...
... Proteins and Electrophoresis Isozymes (isoenzymes): enzymes that differ in amino acid sequence but catalyze the same chemical reaction. Isozymes have different molecular weights and chemical properties and thus can be separated from each other during electrophoresis. Isozymes are coded by genes on d ...
the function and synthesis of ribosomes
... by the long extensions of four r-proteins, but these are too far away to participate directly in catalysis. From this, it was concluded that the peptidyl-transfer reaction is catalysed by RNA1,20. On the basis of the structure of the 50S subunit in complex with analogues that mimic the substrates fo ...
... by the long extensions of four r-proteins, but these are too far away to participate directly in catalysis. From this, it was concluded that the peptidyl-transfer reaction is catalysed by RNA1,20. On the basis of the structure of the 50S subunit in complex with analogues that mimic the substrates fo ...
“The function and synthesis of ribosomes.” Nature Reviews Mol Cell
... by the long extensions of four r-proteins, but these are too far away to participate directly in catalysis. From this, it was concluded that the peptidyl-transfer reaction is catalysed by RNA1,20. On the basis of the structure of the 50S subunit in complex with analogues that mimic the substrates fo ...
... by the long extensions of four r-proteins, but these are too far away to participate directly in catalysis. From this, it was concluded that the peptidyl-transfer reaction is catalysed by RNA1,20. On the basis of the structure of the 50S subunit in complex with analogues that mimic the substrates fo ...
Vaccinia Virus G1L Protein Expression and Purification
... Relative of the Variola virus, the causative agent of smallpox ...
... Relative of the Variola virus, the causative agent of smallpox ...
Reactions of Plutonium Dioxide with Water and Oxygen
... layers of hydroxide and physisorption of a Iayer of molecular water on the resulting I%O(OH)Zsurface. Likewise, the rate of mass increase observed at 2S0°C is in precise agreement with that for formation of PuOz+Xaccording to Equation 2 Formation of PuOZ+X is verified by XRD results showing that the ...
... layers of hydroxide and physisorption of a Iayer of molecular water on the resulting I%O(OH)Zsurface. Likewise, the rate of mass increase observed at 2S0°C is in precise agreement with that for formation of PuOz+Xaccording to Equation 2 Formation of PuOZ+X is verified by XRD results showing that the ...
The Cutting Edge of Affinity Electrophoresis Technology
... structures of the sugar chains of mucins are related to the presence of tumors. However, because mucins are giant proteins with molecular weights of several megadaltons and sugar chains, which account for 50%–80% of this molecular weight, hinder the degradation of mucins by proteases, research on mu ...
... structures of the sugar chains of mucins are related to the presence of tumors. However, because mucins are giant proteins with molecular weights of several megadaltons and sugar chains, which account for 50%–80% of this molecular weight, hinder the degradation of mucins by proteases, research on mu ...
embor2011116-sup-0001
... polypeptide sequence involved in the formation of ordered cross-β structure. It is based on the assumption that -strands involved in fibril formation adopt β-pairings with minimum energies and with a preference for parallel or anti-parallel in-register arrangement. A dataset of globular proteins wi ...
... polypeptide sequence involved in the formation of ordered cross-β structure. It is based on the assumption that -strands involved in fibril formation adopt β-pairings with minimum energies and with a preference for parallel or anti-parallel in-register arrangement. A dataset of globular proteins wi ...
Structure-Function Relations in E. coli 16s RNA
... of a detailed physical model of this process that satisfactorily accounts for what little is known. No part of 16s RNA has been associated with a proofreading function. Several proteins, however, are known to be involved in regulating translational fidelity. Elongation factor Tu and S4, Sl 1, S12, a ...
... of a detailed physical model of this process that satisfactorily accounts for what little is known. No part of 16s RNA has been associated with a proofreading function. Several proteins, however, are known to be involved in regulating translational fidelity. Elongation factor Tu and S4, Sl 1, S12, a ...
CitA (citrate) and DcuS (C 4 -dicarboxylate) sensor kinases in
... fumarate, succinate or L-malate, and with lower sensitivity to citrate (Zientz et al., 1998; ...
... fumarate, succinate or L-malate, and with lower sensitivity to citrate (Zientz et al., 1998; ...
Dr. Peter John M.Phil, PhD Assistant Professor
... suppressor mutation that occurs in a different gene is called an "intergenic suppressor" ...
... suppressor mutation that occurs in a different gene is called an "intergenic suppressor" ...
5548-4.pdf
... interdiffusion coefficient varies by approximately three orders of magnitude. When the coatings contain predominantly y phase, the error will be low as variation of interdiffusion coefficient with composition is not high. However, when the h phase is formed by heat treatment, the assumption can intr ...
... interdiffusion coefficient varies by approximately three orders of magnitude. When the coatings contain predominantly y phase, the error will be low as variation of interdiffusion coefficient with composition is not high. However, when the h phase is formed by heat treatment, the assumption can intr ...
Can the Origin of the Genetic Code Be Explained - BIO
... the amino acid arginine and RNA bases at the active site in the group I intron of Tetrahymena, a ciliated protozoan. He found that arginine inhibits the self-splicing reaction of the group I intron by preferentially binding to sequences containing nucleotides corresponding to arginine codons (AGA, C ...
... the amino acid arginine and RNA bases at the active site in the group I intron of Tetrahymena, a ciliated protozoan. He found that arginine inhibits the self-splicing reaction of the group I intron by preferentially binding to sequences containing nucleotides corresponding to arginine codons (AGA, C ...
practice test - WordPress.com
... The driving force for this clustering of nonpolar regions is: a. that the relatively strong hydrogen bonding forces between water molecules tend to exclude nonpolar materials from the aqueous environment b. that the nonpolar regions recognize similar nonpolar regions elsewhere in the molecule, and t ...
... The driving force for this clustering of nonpolar regions is: a. that the relatively strong hydrogen bonding forces between water molecules tend to exclude nonpolar materials from the aqueous environment b. that the nonpolar regions recognize similar nonpolar regions elsewhere in the molecule, and t ...
A defined subset of adenylyl cyclases is regulated by bicarbonate ion.
... specific activity demonstrating that HCO3- activation of cyaB1595-859 was independent of the associated cation. The catalytic activity of cyaB1595-859 was also measured in the presence of a number of anions with Na+ as cation (Figure 1C). Anions structurally distinct from HCO3- (e.g. Cl-, NO3-, and ...
... specific activity demonstrating that HCO3- activation of cyaB1595-859 was independent of the associated cation. The catalytic activity of cyaB1595-859 was also measured in the presence of a number of anions with Na+ as cation (Figure 1C). Anions structurally distinct from HCO3- (e.g. Cl-, NO3-, and ...
Mechanochemistry: the varied applications of mechanical bond
... were cracked by breaking of intermolecular cohesive ligations producing very high surface area for the solid-solid reaction with equally micronized reagent crystallites or with liquids. A fair reactivity comparison for solid-liquid reactions would be the use of pre-milled C60 for the reaction with t ...
... were cracked by breaking of intermolecular cohesive ligations producing very high surface area for the solid-solid reaction with equally micronized reagent crystallites or with liquids. A fair reactivity comparison for solid-liquid reactions would be the use of pre-milled C60 for the reaction with t ...
ref. #28 of the TIBS article
... which has also been invoked to explain the membrane burial of the Ca of Lys40 in the M13 coat protein (Stopar et al., 1996). The side-chains of Arg Ê . The Arg Cd and Lys are both very long, about 6 A carries a bulky, positively charged guanido group, while Lys has a terminal amino group on Ce. Acco ...
... which has also been invoked to explain the membrane burial of the Ca of Lys40 in the M13 coat protein (Stopar et al., 1996). The side-chains of Arg Ê . The Arg Cd and Lys are both very long, about 6 A carries a bulky, positively charged guanido group, while Lys has a terminal amino group on Ce. Acco ...
生物核磁共振波谱学NMR in Biological Science 闫永彬博士Yong
... and what not? quantum mechanical treatment of NMR (although some equations will occur!!!) solid state NMR, MRI techniques working with NMR data bases empirical correlations for chemical shifts (increment systems) THNMR YAN ...
... and what not? quantum mechanical treatment of NMR (although some equations will occur!!!) solid state NMR, MRI techniques working with NMR data bases empirical correlations for chemical shifts (increment systems) THNMR YAN ...
Raw Glycerol as Substrate for the Production of Yeast Biomass
... 95% confidence using raw glycerol; however, C. lipolytica NRRL Y-1095 showed a lower specific growth rate, differing statistically from other strains, at 95% confidence, using pure glycerol. In general, the use of raw glycerol and, consequently, the presence of impurities such as ethanol, soaps and ...
... 95% confidence using raw glycerol; however, C. lipolytica NRRL Y-1095 showed a lower specific growth rate, differing statistically from other strains, at 95% confidence, using pure glycerol. In general, the use of raw glycerol and, consequently, the presence of impurities such as ethanol, soaps and ...
i need to know about cryoprecipitate
... Cryoprecipitate contains specific protein molecules involved in blood clotting. The most important is fibrinogen, the precursor of fibrin. Each unit of cryoprecipitate has ≥140 mg of fibrinogen. Other blood clotting molecules contained in cryoprecipitate include factor VIII (the protein missing in p ...
... Cryoprecipitate contains specific protein molecules involved in blood clotting. The most important is fibrinogen, the precursor of fibrin. Each unit of cryoprecipitate has ≥140 mg of fibrinogen. Other blood clotting molecules contained in cryoprecipitate include factor VIII (the protein missing in p ...
Dialysis Guide_scienova
... Concentration of substance The dialysis speed depends on the concentration gradient, which is highest at the start of dialysis. Through the dialysis process the concentration gradient between the ...
... Concentration of substance The dialysis speed depends on the concentration gradient, which is highest at the start of dialysis. Through the dialysis process the concentration gradient between the ...
HiTrap Heparin HP,1 ml and 5 ml
... pH stability, long term refers to the pH interval where the medium is stable over a long period of time without adverse effects on its subsequent chromatographic performance. pH stability, short term refers to the pH interval for regeneration, cleaning-in-place and sanitization procedure ...
... pH stability, long term refers to the pH interval where the medium is stable over a long period of time without adverse effects on its subsequent chromatographic performance. pH stability, short term refers to the pH interval for regeneration, cleaning-in-place and sanitization procedure ...
Protein adsorption
Adsorption (not to be mistaken for absorption) is the accumulation and adhesion of molecules, atoms, ions, or larger particles to a surface, but without surface penetration occurring. The adsorption of larger biomolecules such as proteins is of high physiological relevance, and as such they adsorb with different mechanisms than their molecular or atomic analogs. Some of the major driving forces behind protein adsorption include: surface energy, intermolecular forces, hydrophobicity, and ionic or electrostatic interaction. By knowing how these factors affect protein adsorption, they can then be manipulated by machining, alloying, and other engineering techniques to select for the most optimal performance in biomedical or physiological applications.