chaperones are produced by prokaryotic, yeast and higher eukaryotic cells for various purposes. over-expression of each chaperone or sets of them affect the production level of a recombinant protein in the cell. on the basis of this hypothesis, five different plasmids with 5 different combinations of 6 chaperones molecule, transformed into escherichia coli along with human basic fibroblast grow...

after using 3 different generations of antibodies including human and non-human hyperimmune sera, monoclonal antibodies and chimeric antibodies, more recently a newer approach has been developed in which the antibody genes are cloned directly from a patient peripheral b-lymphocytes and expressed in a host like e. coli. in this study the candida albicans serotype a (nctc 3153) mannan was purifie...

bioconversion of cellulosic material into bioethanol needs cellulase complex enzymesthat contain endoglucanase, exoglucanase and beta glucosidase. one of the most important organisms that produce cellulases is the filamentous fungi, trichoderma reesei which able to secrete large amounts of different cellulases. these enzymes are probably the most widely used cellulases industrially, however, th...

Transient expression is a rapid, useful approach for producing proteins of interest in plants. Tobacco mosaic virus (TMV)-based transient expression vectors can express very high levels of foreign proteins in plants. However, TMV vectors are, in general, not efficiently delivered to plant cells by agroinfection. It was determined that agroinfection was very efficient with a 35S promoter-driven ...

Background: Conventional anti-cancer treatments, such as surgery, chemotherapy, radiation therapy, etc., are linked to antimicrobial resistance (AMR) and have negative effects on healthy tissues. Objectives: The flow cytometry technique was used in this study to evaluate the effectiveness of a modified anti-cancer peptide in treating the AGS gastric cancer cell line. Methods: This study used ...

Objective(s): Production of a recombinant and immunogenic antigen using dengue virus type-3 envelope protein is a key point in dengue vaccine development and diagnostic researches. The goals of this study were providing a recombinant protein from dengue virus type-3 envelope protein and evaluation of its immunogenicity in mice. Materials and Methods: Multiple amino acid sequences of different i...

pneumococcal autolysins are enzymes involved in cell wall turnover and cellular division physiologically. they have been found to be involved in the pneumococcus pathogenesis. the aim of this study was to identify the autolytic activity of spr1754 as a novel protein of streptococcus pneumoniae . moreover, the binding of the recombinant protein to plasma proteins was also determined. the spr1754...

Flock house virus (FHV) is a small icosahedral insect virus of the family Nodaviridae. Its genome consists of two messenger-sense RNA molecules, both of which are encapsidated in the same particle. RNA1 (3.1 kb) encodes proteins required for viral RNA replication; RNA2 (1.4 kb) encodes protein alpha (43 kDa), the precursor of the coat protein. When Spodoptera frugiperda cells were infected with...

Grapevine leafroll associated virus 2 (GLRaV 2) is one of the important components in the leafroll disease complex. The coat protein gene of GLRaV 2 was cloned into a protein expression vector pMAL-c2x and the recombinant protein, consisting of the maltose binding protein (MBP) and GLRaV 2 coat protein (CP), was expressed in Escherichia coli. The recombinant MBP-CP was used to raise a high qual...