搜索结果: 1-15 共查到“知识库 理学 Enzyme”相关记录71条 . 查询时间(0.078 秒)
Oxidative Stress and Antioxidant Enzyme Defence System in Seminal Plasma of Common Carp (Cyprinus carpio) and Rainbow Trout (Oncorhynchus mykiss) during Spawning Season
reproductive season lipid peroxidation products fish sperm superoxide dismutase glutathione reductase glutathione peroxidase
2018/3/5
Assessment of seminal oxidative stress indicators is emerging as a valuable prognostic tool in assisted reproductive
technology. We investigated levels of oxidative stress caused by reactive oxygen s...
Dissecting Proton Delocalization in an Enzyme’s Hydrogen Bond Network with Unnatural Amino Acids
Dissecting Proton Delocalization Enzyme’s Hydrogen Bond Network Unnatural Amino Acids
2016/5/25
Extended hydrogen bond networks are a common structural motif of enzymes. A recent analysis proposed quantum delocalization of protons as a feature present in the hydrogen bond network spanning a tria...
Quantum delocalization of protons in the hydrogen-bond network of an enzyme active site
ab initio path integral molecular dynamics enzyme hydrogen bonding nuclear quantum effects proton delocalization
2016/5/25
Enzymes use protein architectures to create highly specialized structural motifs that can greatly enhance the rates of complex chemical transformations. Here, we use experiments, combined with ab init...
A Thermodynamic Framework For Identifying Free Energy Inventories of Enzyme Catalytic Cycles
Steroid Isomerases Catalysis Hydrogen-Ion Concentration Thermodynamics Models, Chemical
2016/5/25
Pauling's suggestion that enzymes are complementary in structure to the activated complexes of the reactions they catalyze has provided the conceptual basis to explain how enzymes obtain their fantast...
Quantitative,Directional Measurement of Electric Field Heterogeneity Within an Enzyme Active Site
Quantitative Directional Measurement Electric Field Heterogeneity Enzyme Active Site
2016/5/25
Extensive structural studies of enzymes have revealed that biological catalysis occurs within sequestered active site crevices, where reacting substrates are surrounded by an anisotropic and chemicall...
Electric Fields at the Active Site of an Enzyme:Direct Comparison of Experiment with Theory
Humans Nitriles Enzyme Inhibitors Spectrophotometry, Infrared Spectrum Analysis Circular Dichroism Electricity Protein Conformation Protein Structure,Tertiary Protein Folding
2016/5/24
The electric fields produced in folded proteins influence nearly every aspect of protein function. We present a vibrational spectroscopy technique that measures changes in electric field at a specific...
Antioxidant Enzyme Activity, Iron Content and Lipid Oxidation of Raw and Cooked Meat of Korean Native Chickens and Other Poultry
Antioxidant Enzyme Activity Iron Content Korean Native Chicken Lipid Oxidation
2016/5/20
This study was conducted to observe antioxidant enzyme activity, iron content and lipid oxidation of Korean native chickens and other poultry. The breast and thigh meat of three Korean native chicken ...
Effects of Non-ionic Surfactants on Enzyme Distributions of Rumen Contents, Anaerobic Growth of Rumen Microbes, Rumen Fermentation Characteristics and Performances of Lactating Cows
Non-ionic Surfactants Enzyme Activity Microbial Growth Rumen Microorganism Ruminal Fermentation Lactation Performances
2016/4/12
A series of experiments was carried out to determine the possibility for the non-ionic surfactant (NIS) as a feed additive for ruminant animals. The effect of the NIS on (1) the enzyme distribution in...
Characterization of a fatty acid elongase condensing enzyme by site-directed mutagenesis and biochemical analysis
ELONGASE CONDENSING ENZYME
2015/5/21
Fatty acid elongation is the extension of de novo synthesized fatty acids through a series of four reactions analogous to those of fatty acid synthase. ELOs catalyze the first reaction in the elongati...
Study on the Changes in Enzyme and Insulin-like Growth Factor-1 Concentrations in Blood Serum and Growth Characteristics of Velvet Antler during the Antler Growth Period in Sika Deer (Cervus nippon)
Antler Blood enzyme IGF-1 Sika Deer
2016/5/18
This study was conducted to investigate changes in blood enzyme parameters and to evaluate the relationship between insulin-like growth factor-1 (IGF-1), antler growth and body weight during the antle...
Biocomputational Characterization and Evolutionary Analysis of Bubaline Dicer1 Enzyme
Alternative Splicing Athletic Performance Muscle RNA-seq
2016/5/18
Dicer, an ribonuclease type III type endonuclease, is the key enzyme involved in biogenesis of microRNAs (miRNAs) and small interfering RNAs (siRNAs), and thus plays a critical role in RNA interferenc...
Angiotensin I-Converting Enzyme Inhibitor Activity on Egg Albumen Fermentation
Functional Food Angiotensin I-Converting Enzyme Inhibitor Activity
2016/5/18
Lactobacillus plantarum is used for fermentation of fish products, meat and milk. However, the utilization of these bacteria in egg processing has not been done. This study was designed to evaluate th...
Effect of High Dietary Carbohydrate on the Growth Performance, Blood Chemistry, Hepatic Enzyme Activities and Growth Hormone Gene Expression of Wuchang Bream (Megalobrama amblycephala) at Two Temperatures
Temperature Growth Serum Parameters Hepatic Enzymes Activities
2016/5/17
The effects of high carbohydrate diet on growth, serum physiological response, and hepatic heat shock protein 70 expression in Wuchang bream were determined at 25°C and 30°C. At each temperature, the ...
Methodological interference of biochar in the determination of extracellular enzyme activities in composting samples
Biochar the trap of carbon soil fertility hydrolysis enzyme assay phosphatase
2015/1/6
Biochar application has received increasing attention as a means to trap recalcitrant carbon and enhance soil fertility. Hydrolytic enzymatic assays, such as β-glucosidase and phosphatase activities, ...
Probing for Conformational Changes in the Repair Enzyme Mfd Using Mutant Protein Constructs
Conformational Changes Repair Enzyme Mfd Mutant Protein Constructs
2014/12/9
DNA repair is essential for survival, as damage to the genome can interrupt the precarious balance of cell functions, causing further mutations and possibly leading to cancer. The bacterial transcript...