Wild-type recombinant horseradish peroxidase purified and refolded from Escherichia coli inclusion bodies has been studied in the system of bis(2-ethylhexyl)sulphosuccinate sodium salt (Aerosol OT)-reversed micelles in octane. In contrast with native horseradish peroxidase the wild-type recombinant enzyme forms dimeric structures as judged by sedimentation analysis. Peroxidase substrates affect...

Increased activities of peroxidase and indole 3-acetic acid (IAA) oxidase were detected on root surfaces of bean (Phaseolus vulgaris) seedlings colonized with a soil saprophytic bacterium, Pseudomonas putida. IAA oxidase activity increased over 250-fold and peroxidase 8-fold. Enhancement was greater for 6-day-old than for 4- or 8-day-old inoculated plants No IAA oxidase or peroxidase activities...

During penetration and infection of the bean leaf by the rust fungus, at 22 h after artificial inoculation, the following sites of peroxidase activity were observed which might influence the interaction of the host and parasite: (I) The guard cell walls of the stoma are covered with a layer that shows peroxidase activity. This activity might influence the infection peg of the fungus. (2) Within...

An immunohistochemical procedure for the detection of immunoglobulin G adherent to platelets is described. The peroxidase anti-peroxidase method is used to detect antibody activity directed against platelets from normal donors in the sera from 305 individuals. These subjects were divided into three groups: group 1, patients referred for tissue typing; group 2, healthy normal females; group 3, h...

1. Physical studies of complex-formation between cytochrome c and yeast peroxidase are consistent with kinetic predictions that these complexes participate in the catalytic activity of yeast peroxidase towards ferrocytochrome c. Enzyme-ferricytochrome c complexes have been detected both by the analytical ultracentrifuge and by column chromatography, whereas an enzyme-ferrocytochrome c complex w...

background: leishmania, needs to detoxify the macrophage derived potent peroxides (h2o2). tryparedoxin path­way contains tryparedoxin peroxidase (tsa or tryp). the aim of the study was to detect the full-length gene se­quence and its encoded protein of the lmtryp6 gene (eu251502), and comparison the gene sequence with lmtryp6 (lmjf15.1140), another previously reported member of this gene family...

conclusions se supplementation can increase plasma se concentration and rbc gsh-pxs activity in patients with different stages of ckd. background plasma selenium (se) concentration and glutathione peroxidase (gsh-pxs) enzyme activity of the patients with chronic kidney disease (ckd) are usually lower than healthy individuals; however, the effect of se supplementation on the gsh-pxs activity in ...

antioxidants act as free radical scavengers in the oxidation processes. thus, they will certainly play diverse roles in the biological systems and the therapy of a wide variety of diseases. regarding this fact, in the present study, we synthesized two new salen ligand compounds by the condensation of ethylendiamine and salicylaldehyde derivatives in excellent yields.the structures of these liga...