Results: 117

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...

Isolation of recombinant antibodies directed against surface proteins of Clostridium difficile

Braz. j. microbiol; 47 (2), 2016
Abstract Clostridium difficile has emerged as an increasingly important nosocomial pathogen and the prime causative agent of antibiotic-associated diarrhoea and pseudomembranous colitis in humans. In addition to toxins A and B, immunological studies using antisera from patients infected with C. difficile...

Comparing the expression of human DNA topoisomerase I in KM71H and X33 strains of Pichia pastoris

Electron. j. biotechnol; 19 (3), 2016
Background: Human is an essential cellular enzyme that is found in all human cells. As this enzyme is upregulated in cancer cells exceedingly, it is used as a target for cancer chemotherapeutic drug development. As such, producing the in-house enzyme for the purpose to speed up the search for more cost-e...

Depressive episode incidence in patients with chronic hepatitis c treated with pegylated interferon and ribavirin

Arq. gastroenterol; 53 (1), 2016
ABSTRACT Background The effectiveness of antiviral therapy with pegylated interferon and ribavirin for chronic hepatitis C is far from ideal and presents several adverse events. Among such events, there is the depressive episode that can even lead to treatment discontinuity Objective Analyze the incide...

The anti-cancerous activity of recombinant trichosanthin on prostate cancer cell PC3

Biol. Res; 49 (), 2016
CONTEXT: Trichosanthin produced in the root tube of Trichosanthes kirilowii shows anti-tumor activity on a series of cancer cells including Hela, MCF-7, HL-60. But there is little information about its effect on the carcinogenesis of prostate cancer. OBJECTIVE: This work was designed to study the role of...

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...

Fermentation optimization of maltose-binding protein fused to neutrophil-activating protein from Escherichia coli TB1

Electron. j. biotechnol; 18 (4), 2015
Background The fermentation conditions of recombinant maltose-binding protein fused to neutrophil-activating protein (rMBP-NAP) of Helicobacter pylori were optimized from Escherichia coli TB1 with varying medium, inoculum age and size, time, inducer, pH and temperature in batch fermentation. Results It w...

Expression and purification of soluble single-chain Fv against human fibroblast growth factor receptor 3 fused with Sumo tag in Escherichia coli

Electron. j. biotechnol; 18 (4), 2015
Background Overexpression or mutated activation of Fibroblast growth factor receptor 3 (FGFR3) is involved in the pathogenesis of many tumors. More and more studies focus on the potential usage of therapeutic antibodies against FGFR3. Results In this study, a novel single-chain Fv (ScFv) against FGFR3 wa...

O uso da proteína recombinante no aumento ósseo em Implantodontia

Rev. Bras. Odontol. (Impr.); 72 (1/2), 2015
A reabsorção do osso alveolar ocorre após a perda dentária por vários fatores, tais como: exodontia, traumatismo, processos patológicos ou mesmo reabsorção por desuso. A reabilitação com implantes requer osso em quantidade e qualidade. Os enxertos autógenos são considerados os enxertos tipo "...

Cloning, expression and characterization of the endoglucanase gene from Bacillus subtilis UMC7 isolated from the gut of the indigenous termite Macrotermes malaccensis in Escherichia coli

Electron. j. biotechnol; 18 (2), 2015
Background Bacillus subtilis UMC7 isolated from the gut of termite Macrotermes malaccensis has the ability to secrete a significant amount of extracellular endoglucanase, with an enzyme activity of 0.12 ± 0.01 μmol/min/mL. However, for economically viable industrial applications, the enzyme needs t...