We have re-evaluated the relationships among the polypeptides of eastern equine encephalitis (EEE) viruses using SDS-PAGE and peptide mapping of individual virion proteins. Four to five distinct polypeptide bands were detected upon SDS-PAGE analysis of viruses: the E1, E2 and C proteins normally
The in vitro effects of the Perkinsus marinus serine protease on the intracellular survival of Vibrio vulnificus in oyster hemocytes were examined by using a time-course gentamicin internalization assay. Results showed that protease-treated hemocytes were initially slower to internalize V.
Eastern equine encephalitis virus (EEEV) causes sporadic but often severe cases of human and equine neurological disease in North America. To determine how EEEV may evade innate immune responses, we screened individual EEEV proteins for the ability to rescue the growth of a Newcastle disease virus
The serine protease inhibitor cvSI-1, purified from plasma of eastern oysters, inhibited the proliferation of the protozoan parasite Perkinsus marinus in vitro. In situ hybridization located cvSI-1 gene expression in basophil cells of the digestive tubules and cvSI-1 expression measured by real-time
Protease inhibitors from the host may inhibit proteases from invading pathogens and confer resistance. We have previously shown that a single-nucleotide polymorphism (SNP198C) in a serine protease inhibitor gene (cvSI-1) is associated with Perkinsus marinus resistance in the eastern oyster. As
Chelonians are one of the most imperiled vertebrate taxa and many species are increasingly threatened by disease, however, the immune response in this group is understudied. We quantified the innate immune response of eastern (Terrapene carolina; EBT) and ornate (Terrapene ornate; OBT) box turtles
A marine Bacillus strain was isolated from the eastern harbour of Alexandria and identified as Bacillus sp. MIG. Maximum activity of studied proteases was obtained when the bacterium was grown in medium with 1% wheat bran and 0.5% yeast extract in addition to the mineral salts and incubated for 48 h
BACKGROUND
Data on the effectiveness of second-line antiretroviral therapy (ART) in resource-limited countries of Eastern Europe is limited. Objective of this study was to evaluate virological outcomes of second-line ART in Georgia.
METHODS
We conducted retrospective analysis using routinely
Serine protease inhibitors (SPIs) are a superfamily of structurally related but functionally diverse proteins found in almost all organisms ranging from viruses to humans. Some of them play important roles in host defense. A recently identified SPI from the eastern oyster (Crassostrea virginica),
The mannose-binding lectin (MBL) pathway of complement system is activated when carbohydrate-bound MBL forms complexes with different serine proteases (MASP-1, MASP-2 and MASP-3), among which MASP-2 has a predominant functional role. Polymorphisms impairing the quantity and/or the functional
Recent findings have suggested that eastern oyster plasma possesses inhibitors of the protease subtilisin, which play a role in the host defense against Perkinsus marinus, a protist parasite causing dermo. A study was conducted to determine whether plasma subtilisin inhibitory activity (PSIA) could
Marine environments are substantially untapped source for the isolation of bacteria with the capacity to produce various extracellular hydrolytic enzymes, which have important ecological roles and promising biotechnological applications. Hydrolases constitute a class of enzymes widely distributed in
Drinking water reservoir plays a vital role in the security of urban water supply, yet little is known about microbial community diversity harbored in the sediment of this oligotrophic freshwater environmental ecosystem. In the present study, integrating community level physiological profiles
Staphylococcus aureus is arguably the most important pathogen involved in bovine mastitis. The aim of this study was to determine the virulence gene profiles of 124 Staph. aureus isolates from subclinical mastitis in cows in eastern Poland. The presence of 30 virulence genes encoding adhesins,
We employed two in vitro buffer systems to determine the potential pathogenic effects of Perkinsus marinus serine proteases on the plasma proteins of the eastern oyster (Crassostrea virginica) and the Pacific oyster (Crassostrea gigas). Specifically, this study characterized the oyster plasma
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