Encontrados 140 documentos, a visualizar página 1 de 14

Odorant binding proteins : a biotechnological tool for odour control

The application of an odorant binding protein for odour control and fragrance delayed release from a textile surface was first explored in this work. Pig OBP-1 gene was cloned and expressed in Escherichia coli , and the purified protein was biochemically characterized. The IC50 values(concentrations of competitor that caused a decay of fluorescence to half-maximal intensity) were determined for four distinct fr...

Electrospun silk-elastin-like fiber mats for tissue engineering applications

Protein-based polymers are present in a wide variety of organisms fulfilling structural and mechanical roles. Advances in protein engineering and recombinant DNA technology allow the design and production of recombinant protein-based polymers (rPBPs) with an absolute control of its composition. Although the application of recombinant proteins as biomaterials is still an emerging technology, the possibilities ar...

Direct enzymatic esterification of cotton and Avicel with wild-type and enginee...

In this work, the surface of cellulose, either Avicel or cotton fabric, was modified using cutinases without any previous treatment to swell or to solubilise the polymer. Aiming further improvement of cutinase ester synthase activity on cellulose, an engineered cutinase was investigated. Wild-type cutinase from Fusarium solani and its fusion with the carbohydrate-binding module N1 from Cellulomonas fimi were ab...

A synthetic biology approach for the development of recombinant protein-based p...

The search for advanced materials, especially for those bioinspired, has recently been the focus of great research in many fields of application. Due to recent advances in materials characterization and fabrication technologies, and especially through the use of synthetic biology approaches, it is now possible to reengineer novel functionalities and structures of protein-based materials, taking advantage ...

Antibacterial and antifungal activity of a new solvent-cast film based on a fun...

Microevolutionary changes of commercial Saccharomyces cerevisiae strains recove...

Apresentação efetuada no Microbiotec2011, Braga, 2011 ; The use of commercial Saccharomyces cerevisiae wine yeast strains as fermentation starters has been extensively generalised over the past two decades. These strains are used by wineries every harvest time in large quantities. Within our previous work we showed that such strains are disseminated from the winery [1] and their permanence in nature induced ge...

3-bromopyruvate, butyrate, monocarboxylate transporters, warburg effect

The authors are deeply grateful to Professor André Goffeau (Université Catholique de Louvain-la-Neuve, Belgium) for his contagious vision, valuable discussions at the Conference on 3-BP held in Brussels, 29 October–2 November, 2011 and critical reviewing of the manuscript. The authors also thank Dr. Rita Reis for her technical support in microscopy and image analysis. ; Most malignant tumors exhibit theWarburg...

Intra-strain phenotypic and genomic variability of the commercial Saccharomyces...

The use of commercial Saccharomyces cerevisiae wine strains as fermentation starters has been extensively generalised over the past two decades. These strains are used by wineries every harvest in large quantities. We showed that such strains are disseminated from the winery and their permanence in nature induced genetic changes, not found among a control group of isolates that derived from clonal expansion of ...

Role of monocarboxylate transporters in human cancers : state of the art

Monocarboxylate transporters (MCTs) belong to the SLC16 gene family, presently composed by 14 members. MCT1-MCT4 are proton symporters, which mediate the transmembrane transport of pyruvate, lactate and ketone bodies. The role of MCTs in cell homeostasis has been characterized in detail in normal tissues, however, their role in cancer is still far from understood. Most solid tumors are known to rely on glycolys...

Genetic diversity and population structure of Saccharomyces cerevisiae strains ...

We herein evaluate intraspecific genetic diversity of fermentative vineyard-associated S. cerevisiae strains and evaluate relationships between grape varieties and geographical location on populational structures. From the musts obtained from 288 grape samples, collected from two wine regions (16 vineyards, nine grape varieties), 94 spontaneous fermentations were concluded and 2820 yeast isolates were obtained ...