... Mg 2+ -modulated KMnO 4 reactivity of thymines in the open transcription complex reflects variation in the negative electrostatic potential along the separated DNA strands Footprinting of Escherichia coli ... (c) the observed thymine reactivity and the magnitude of the Mg effect reflect variation in the strength of the electrostatic...
Ngày tải lên: 19/02/2014, 18:20
... MINIREVIEW Thiamin diphosphate in biological chemistry: analogues of thiamin diphosphate in studies of enzymes and riboswitches Kwasi Agyei-Owusu and Finian J. Leeper Department of Chemistry, ... understanding of ThDP-dependent enzymes, as well as studies of thiamin analogues as drug molecules and in the field of riboswitches. Modifications t...
Ngày tải lên: 29/03/2014, 23:20
Báo cáo khoa học: Thiamin diphosphate in biological chemistry: new aspects of thiamin metabolism, especially triphosphate derivatives acting other than as cofactors pdf
... adenylate kinase; AThTP, adenosine thiamin triphosphate; TenA, thiaminase II; ThDP, thiamin diphosphate; ThDPase, thiamin diphosphatase; ThMP, thiamin monophosphate; ThMPase, thiamin monophosphatase; ... chemistry: new aspects of thiamin metabolism, especially triphosphate derivatives acting other than as cofactors Lucien Bettendorff and Pierre Wins GI...
Ngày tải lên: 29/03/2014, 23:20
Báo cáo khoa học: Role of Tyr84 in controlling the reactivity of Cys34 of human albumin potx
... Structural features of the Cys34 site in human serum albumin. (A) Domain structure of human serum albumin and location of Cys34. The coordinates used are those of pdb 1AO6 (albumin isolated from ... dramatic increase in reactivity for the Tyr84Phe mutant. We also report 1 H NMR studies of disulfide interchange reac- tions with cysteine. The tethering of th...
Ngày tải lên: 30/03/2014, 15:20
reaction mechanisms of inorganic and organometallic systems (topics in inorganic chemistry)
... appears in the work of Toma and Malin 37 on the reaction 42 Reaction Mechanisms of Inorganic and Organometallic Systems McNeil et al. 15 found that the rate of replacement of ... 12 Reaction Mechanisms of Inorganic and Organometallic Systems Figure 1.2. The time dependence of the absorbance, / A , of reactant A during the in...
Ngày tải lên: 01/04/2014, 10:37
new developments in the chemistry of war gasses 1950
... led to the discovery of many interesting substances and to the development of several new methods of synthe- sis. In addition, the results of the toxicological investigations shed new light ... developed during World War 11, some of which were found interesting to the point of being manufactured on a large scale. B. DIESTERS OF FLUOPHOSPHORIC ACID The...
Ngày tải lên: 09/05/2014, 17:01
the synthetic use of metals in organic chemistry
... 81. 10 SYNTHETIC USE OF METALS A few applications illustrating the value of these sodium derivatives may now be outlined. The sodium derivative of acetoacetic ester, pre- pared by treating the ester ... nitrides—Hydroxides of the metals . 42 CHAPTER IV. ZINO AND MERCURY. Metallic Zinc—Zinc chloride—Mercuric oxide—Metallic mercury ^ 30 SYNTHETIC USE OF METALS...
Ngày tải lên: 09/05/2014, 17:02
Metal Complexes of 4′-Substituted-2,2′:6′,2″-Terpyridines in Supramolecular Chemistry
... understand the importance of designing ligands with correct number and orientation of the coordination sites (molecular components containing metal- binding domains) and of choosing metal ions with the ... characterisation of ligands L 10 -L 17 , which contain two 2,2′:6′,2″-terpyridine metal- binding domains. These two 2,2′:6′,2″- terpyridine metal- binding domains are linked...
Ngày tải lên: 02/07/2014, 13:33
Báo cáo khoa học: "Immunologic reactivity of a lipopolysaccharide-protein complex of type A Pasteurella multocida in mice" doc
... potassium thiocyanate extract of a Pasteurella multocida (capsular type A and somatic type 3) strain was evaluated in mice. The LPS-protein complex provided 100% protection in mice against a challenge ... Immunoge- nicity Introduction Pasteurella multocida belonging to Carter’s capsular serotype A [8] can infect a variety of animal species. They are particularl...
Ngày tải lên: 07/08/2014, 14:23
Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 2 pps
... 2. 1 Introduction 2. 2 Case Study 1 2. 2.1 Metal Solutions and Colloid Suspensions 2. 2 .2 Soil Monoliths 2. 2.3 Leaching Experiments 2. 2.4 Eluent Characterization 2. 2.5 Colloid Elution 2. 2.6 ... for In situ Treatment of Metal Contaminated Soils, EPA-5 4 2- R-97–004, USEPA, Washington, D.C., 1997. 3. Forstner, U., Land contamination by metals: Global scope and magnitude...
Ngày tải lên: 11/08/2014, 10:22
Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 4 docx
... unraveling the affinity of mineral surfaces for both inorganic and organic species. The main effects of proton adsorption-desorption on the adsorption of metals in general and heavy metals in particular ... solution, and a H represents the activity of protons in the bulk. The combination of equations 4. 2 and 4. 3 gives (4. 4) In dilute solutions is i...
Ngày tải lên: 11/08/2014, 10:22
Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 5 pptx
... 159 8 1603 159 6 1667 1648 1618 1620 1712 1 655 1688 159 2 1604 155 3 16 05 157 6 159 5 156 6 1620 1611 159 5 158 3 1690 1634 1647 157 1 158 6 1462 158 5 1484 155 5 1479 159 6 154 9 157 9 155 9 1606 156 4 16 05 ... 1246 1187 1 157 10 45 1026 1244 12 15 1149 1 154 1136 1142 8 75 870 1149 1 151 1086 1088 1039 1061 653 654 1038 1022 10 35 1018 781 782 854 862 853 848 661 654 772 769 659...
Ngày tải lên: 11/08/2014, 10:22
Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 7 pptx
... 0.142 0 .75 22.18 29.4 0.080 0.130 0.210 0.069 0.451 0 .77 22.93 29.6 0.204 0.2 27 0.432 0.1 57 0.823 0. 87 23. 27 26.9 0.382 0.326 0 .70 8 0.880 1.214 0 .73 21.19 29.0 0 .77 5 0.338 1.113 1.638 0. 873 0.42 ... comparison of the Sargasso Sea and equatorial Pacific, Deep Sea Res. Part I Oceanogr. Res. Pap., 44, 1 277 , 19 97. Moffett, J.W. and Ho, J., Microbially mediated incorporati...
Ngày tải lên: 11/08/2014, 10:22
Geochemical and Hydrological Reactivity of Heavy Metals in Soils - Chapter 8 ppsx
... this point, the remainder of the chapter focuses on the combination of several analytical techniques in determining and quantifying Zn speciation in a soil contaminated as a result of smelting operations. ... a variety of techniques, including XRD, XAFS, and micro-focused XAFS to demonstrate that upon weathering of Zn-mineral phases in soils, Zn was taken up by the form...
Ngày tải lên: 11/08/2014, 10:22
reactivity of epicatechin in maillard chemistry
... from Maillard reaction 5 Factors influencing Maillard reaction kinetics 7 The influence of pH 8 The influence of temperature-time 9 Water Content 11 Influence of reactant type (sugar and amino ... Beelman Professor of Food Science Donald Thompson Professor of Food Science Koushik Seetharaman Assistant Professor of Food Science A.Daniel Jones Professor of C...
Ngày tải lên: 13/11/2014, 09:16