The variability in morphologic, chemical, and physical soil
properties within the Willakenzie silty clay loam, 2 to 12 percent
slopes, map unit in Yamhill County, Oregon was measured.
The objectives of the study included (1) describing the frequency
distributions of individual soil properties, (2) measuring the
taxonomic composition of the...
Flavin-containing monooxygenase (FMO) oxygenates drugs/xenobiotics containing a
soft nucleophile through a C4a hydroperoxy-FAD intermediate. Human FMOs 1, 2 and
3, expressed in Sf9 insect microsomes, released 30-50% of O₂ consumed as H₂O₂
upon addition of NADPH. Addition of substrate had little effect on H₂O₂ production.
Two common FMO2 (the major...
Full Text:
(FMO) as a Source of Hydrogen
Peroxide
Lisbeth K. Siddensa, Sharon K. Kruegerb, Marilyn C
Flavin-containing monooxygenase (FMO) oxygenates drugs/xenobiotics containing a
soft nucleophile through a C4a hydroperoxy-FAD intermediate. Human FMOs 1, 2 and
3, expressed in Sf9 insect microsomes, released 30-50% of O₂ consumed as H₂O₂
upon addition of NADPH. Addition of substrate had little effect on H₂O₂ production.
Two common FMO2 (the major...
Flavin-containing monooxygenase (FMO) oxygenates drugs/xenobiotics containing a
soft nucleophile through a C4a hydroperoxy-FAD intermediate. Human FMOs 1, 2 and
3, expressed in Sf9 insect microsomes, released 30-50% of O₂ consumed as H₂O₂
upon addition of NADPH. Addition of substrate had little effect on H₂O₂ production.
Two common FMO2 (the major...
The Ti plasmid in Agrobacterium tumefaciens strain 15955 carries two alleles of traR that regulate conjugative transfer. The first
is a functional allele, called traR, that is transcriptionally induced by the opine octopine. The second, trlR, is a nonfunctional,
dominant-negative mutant located in an operon that is inducible by the...
Full Text:
Transfer of an
Agrobacterium Opine-Catabolic Plasmid
Wetzel, M. E., Kim, K. S., Miller, M., Olsen, G. J
The Ti plasmid in Agrobacterium tumefaciens strain 15955 carries two alleles of traR that regulate conjugative transfer. The first
is a functional allele, called traR, that is transcriptionally induced by the opine octopine. The second, trlR, is a nonfunctional,
dominant-negative mutant located in an operon that is inducible by the...
The Ti plasmid in Agrobacterium tumefaciens strain 15955 carries two alleles of traR that regulate conjugative transfer. The first
is a functional allele, called traR, that is transcriptionally induced by the opine octopine. The second, trlR, is a nonfunctional,
dominant-negative mutant located in an operon that is inducible by the...
Development of herbicide-resistant crops has resulted in significant changes to agronomic practices, one of which is the adoption of effective, simple, low-risk, crop-production systems with less dependency on tillage and lower energy requirements. Overall, the changes have had a positive environmental effect by reducing soil erosion, the fuel use for...
Mammalian flavin-containing monooxygenase (FMO) is active towards many drugs with a heteroatom having the properties of a soft nucleophile. Thiocarbamides and thiones are S-oxygenated to the sulfenic acid which can either react with glutathione and initiate a redox-cycle or be oxygenated a second time to the unstable sulfinic acid. In...
Mammalian flavin-containing monooxygenase (FMO) is active towards many drugs with a heteroatom having the properties of a soft nucleophile. Thiocarbamides and thiones are S-oxygenated to the sulfenic acid which can either react with glutathione and initiate a redox-cycle or be oxygenated a second time to the unstable sulfinic acid. In...
