avian pathogenic e. coli (apec) is responsible for economic losses in all poultry farms. certain virulence factors have been proposed as a means of controlling apec infections, including some proteins to be used for vaccination. in the study we report here, one of the major virulence factors, the iss (increased serum survival) gene, from e. coli strain χ1378, isolated from poultry colibacillosi...

Membrane fusion induced by enveloped viruses proceeds through the actions of viral fusion proteins. Once activated, viral fusion proteins undergo large protein conformational changes to execute membrane fusion. Fusion is thought to proceed through a "hemifusion" intermediate in which the outer membrane leaflets of target and viral membranes mix (lipid mixing) prior to fusion pore formation, enl...

The Delayed type hypersensitivity skin test (DTH) and interferon-gamma assay are used for the diagnosis of bovine tuberculosis (TBB). The specificity of these diagnoses, however, is compromised because both are based on the response against purified protein derivative of Mycobacterium bovis (PPD-B). In this study, we assessed the potential of two cocktails containing M. bovis recombinant protei...

Evaluation of Apoptotic Effect Protein Fusion, Enterocin A, R-Type Pyocin, Lactocin, and Specific Ligand on Gastric Cancer Cell Line (AGS)

Objective(s):To culture thein vitro mouse embryonic stem cells (mESCs) and to direct their  differentiation to germ-line cells; in present study we used a vector backbone containing the fusion construct Stra8-EGFP to select differentiated ES cells that entered meiosis.  Retinoic acid was used to differentiate embryonic stem cells to germ cells. Materials and Methods: A fragment of Stra8 gene pr...

The translocation liposarcoma (TLS) gene is fused to the ETS-related gene (ERG) in human myeloid leukemia, resulting in the generation of a TLS-ERG protein. We demonstrate that both TLS and the TLS-ERG leukemia fusion protein bind to RNA polymerase II through the TLS N-terminal domain, which is retained in the fusion protein; however, TLS recruits members of the serine-arginine (SR) family of s...

Recombinant fusion proteins containing arthropod toxins have been developed as a new class of biopesticides. The recombinant fusion protein Hv1a/GNA, containing the spider venom toxin ω-ACTX-Hv1a linked to snowdrop lectin (GNA) was shown to reduce survival of the peach-potato aphid Myzus persicae when delivered in artificial diet, with survival <10% after 8 days exposure to fusion protein at 1 ...

Mucopolysaccharidosis (MPS) type II (Hunter's syndrome) is caused by mutations in the iduronate 2-sulfatase (IDS) fusion protein. MPS-II affects the brain, and enzyme replacement therapy is not effective in the brain, because the enzyme does not cross the blood-brain barrier. To treat mouse models of MPS-II with brain-penetrating IDS, the lysosomal enzyme was reengineered as an IgG-IDS fusion p...

Nonconservative mutations were introduced by site-specific mutagenesis into the fusion peptide and the adjacent heptad repeat region of the fusion protein of Newcastle disease virus in order to determine the role of both regions in the fusion activity of the protein. Mutations in both regions that allowed for proper folding and intracellular transport of the protein blocked the fusion activity ...