background: enterocin-p of enterococcus faecium p13 (entp) is of great interest as a food preservative and medicine due to its non-toxicity and broad antimicrobial spectrum in various ph, as well as its excellent thermal stability. however, recombinant production of entp is still in laboratory because of low productivity and complex purification process. objectives: in this study, we aimed to d...

we studied the expression of human growth hormone (hgh) in e. coli under a bacteriophage t5-base promoter in a pqe30 expression vector. for an efficient expression of hgh cdna, a number of codons at the hgh n-terminal coding region were altered based on the e. coli major codons. an over-expression of hgh in the bacteria, carrying the recombinant plasmids, was observed at 37°c in the presence of...

Redox control has emerged as a fundamental biological control mechanism. One of the major redox control systems is the thioredoxin system comprised of thioredoxin (TRX) and thioredoxin reductase (TR). Together they form a powerful system involved in many central intracellular and extracellular processes including cell proliferation, the redox regulation of gene expression and signal transductio...

The production of heterologous selenoproteins in Escherichia coli necessitates the design of a secondary structure in the mRNA forming a selenocysteine insertion sequence (SECIS) element compatible with SelB, the elongation factor for selenocysteine insertion at a predefined UGA codon. SelB competes with release factor 2 (RF2) catalyzing translational termination at UGA. Stoichiometry between m...

Background: Enterocin-P of Enterococcus faecium P13 (EntP) is of great interest as a food preservative and medicine due to its non-toxicity and broad antimicrobial spectrum in various pH, as well as its excellent thermal stability. However, recombinant production of EntP is still in laboratory because of low productivity and complex purification process. Objectives: In this study, we aimed to ...

Free radical can be defined as a molecule or molecular fragments containing unpaired electron in the outer orbital, which react with nearby molecules to get stability. There are two types of them in the body: oxygen free radicals and nitrogen free radicals. Our body has an antioxidant defense system which prevents accumulation of these radicals. There is a balance between free radical produc...

Range management needs information on distribution of livestock. The better the distribution of the livestock, the more uniform the use of the rangeland. This study was conducted to record the path of the herd steering by the shepherd. A GPS was attached to a three year old ewe which was moving with the flock. The path of flock movement was recorded for three years on a monthly basis during the...

Background: Although a simple and direct method does not exist for the detection of chlamydial infections, there are situations in which reliable serological tests, with sensi-tivity related to a specific antigen, could be helpful. Objective: The aim of this study was to clone the first 1100 bp of the C. trachomatis outer membrane protein 2 (omp2) gene in order to prepare a recombinant protein ...