Results: 11

Studies on the recombinant production and anticancer activity of thermostable L- asparaginase I from Pyrococcus abyssi

Braz. j. biol; 82 (), 2022
L-Asparaginase catalysing the breakdown of L-Asparagine to L-Aspartate and ammonia is an enzyme of therapeutic importance in the treatment of cancer, especially the lymphomas and leukaemia. The present study describes the recombinant production, properties and anticancer potential of enzyme from a hypert...

Knockout of caspase-7 gene improves the expression of recombinant protein in CHO cell line through the cell cycle arrest in G2/M phase

Biol. Res; 55 (), 2022
BACKGROUND: Chinese hamster ovary cell line has been used routinely as a bioproduction factory of numerous biopharmaceuticals. So far, various engineering strategies have been recruited to improve the production efficiency of this cell line such as apoptosis engineering. Previously, it is reported that t...

Plastid transformation: advances and challenges for its implementation in agricultural crops

Chloroplast biotechnology has emerged as a promissory platform for the development of modified plants to express products aimed mainly at the pharmaceutical, agricultural, and energy industries. This technology’s high value is due to its high capacity for the mass production of proteins. Moreover, the ...

Effect of encephalomyocarditis virus 3'Untranslated region on GFP transient expression: implications in recombinant protein production

The enrichment of therapeutic protein production yield in mammalian cell cultures by modulating mRNA stability is a fairly new strategy in biotechnological applications. Here, we describe the application of 3′-untranslated region (3′UTR) from RNA viral genome to modulate mRNA stability.The data obtai...

Scaling-up fermentation of Escherichia coli for production of recombinant P64k protein from Neisseria meningitidis

Background: P64k is a Neisseria meningitidis high molecular weight protein present in meningococcal vaccine preparations. The lpdA gene, which encodes for this protein, was cloned in Escherichia coli and the P64k recombinant protein was expressed in E. coli K12 GC366 cells under the control of a tryptoph...

Carbon metabolism influenced for promoters and temperature used in the heterologous protein production using Pichia pastoris yeast

Braz. j. microbiol; 49 (supl.1), 2018
Abstract Nowadays, it is necessary to search for different high-scale production strategies to produce recombinant proteins of economic interest. Only a few microorganisms are industrially relevant for recombinant protein production: methylotrophic yeasts are known to use methanol efficiently as the sole...

Production, purification and characterization of recombinant human antithrombin III by Saccharomyces cerevisiae

Electron. j. biotechnol; 19 (4), 2016
Background: Antithrombin III (ATIII) is a protein that inhibits abnormal blood clots (or coagulation) by breaking down thrombin and factor Xa. ATIII helps to keep a healthy balance between hemorrhage and coagulation. The present work demonstrated the production, purification and characterization of recom...

Expression of a recombinant protein, A2 family, from Leishmania infantum (Jaboticabal strain) and its evaluation in Canine Visceral Leishmaniasis serological test

This study aimed to express a recombinant A2 family protein of Leishmania chagasi, Jaboticabal strain; test this protein as an antigen in serological assays; and investigate its antigenicity and immunogenicity. A protein coded by an allele of the A2 gene isolated from L. chagasi was expressed in three di...

Production of antibody fragment (Fab) throughout Escherichia coli fed-batch fermentation process: Changes in titre, location and form of product

Electron. j. biotechnol; 16 (3), 2013
Background: Recombinant proteins, including antibodies and antibody fragments, often contain disulfide bond bridges that are necessary for their folding, stability and function. Production of disulfide-bond-containing proteins in the periplasm of Escherichia coli has been very useful, due to unique chara...

Advances in improving mammalian cells metabolism for recombinant protein production

Electron. j. biotechnol; 16 (3), 2013
Background: The production of recombinant proteins for therapeutic use represents a great impact on the biotechnology industry. In this context, established mammalian cell lines, especially CHO cells, have become a standard system for the production of such proteins. Their ability to properly configure a...