Procurou por: Biochemistry Learning Activities

Código de Artigo: (BE-404)

Fornecedor: G-Biosciences

Descrição: This lab activity is designed to demonstrate the different classes of protein molecules and their classification based on solubility. Students learn fractionation of soluble, insoluble membrane proteins, and cytoskeleton proteins from a tissue sample. The insoluble protein fraction is further fractionated into hydrophilic and hydrophobic membrane proteins. Cell membrane structure and the role of hydrophobic membrane proteins are considered. This lab activity also provides an opportunity to understand characteristics of various classes of detergents and the role of detergents in solubilisation of hydrophobic membrane proteins.

UOM: 1 * 1 KIT

Promoção

Código de Artigo: (BE-401)

Fornecedor: G-Biosciences

Descrição: The physical properties of proteins kit is a lab activity that enables students to investigate the physical properties of several different proteins. Students will learn about protein solubility and how it is affected by various parameters; including temperature, pH, salt and dielectric constant. They will understand about protein precipitation due to pH, high salt and in the presence of organic solvents and about protein denaturation as a result of high temperature. In addition, the kit will demonstrate how non-protein agents, such as detergents drastically alter the physical properties of protein molecules and as a result, understand the importance of detergents in protein solubilisation. This lab activity involves analysis of three different types of pure proteins and then students alter some of those properties with a detergent and re-examine physical properties of those proteins. Students are challenged to consider how physical properties of protein molecules can be exploited for purification and characterisation of proteins and apply their findings on a test sample of complex tissue extract.

UOM: 1 * 1 KIT

Promoção

Código de Artigo: (EDVO282)

Fornecedor: EDVOTEK

Descrição: This easy and safe experiment allows students to learn about enzyme catalysis, the nature of enzyme action, and protein structure-function relationship. Students will perform an enzyme assay and determine the rate of the enzymatic reaction.

UOM: 1 * 1 KIT

Promoção

Código de Artigo: (EDVO202)

Fornecedor: EDVOTEK

Descrição: Small-scale, rapid isolation of plasmid DNA is a routine procedure used for screening and analysis of recombinant DNAs in cloning and sub-cloning experiments. In this experiment, students isolate plasmid DNA without the use of toxic chemicals such as phenol or chloroform.

UOM: 1 * 1 KIT

Promoção

Código de Artigo: (EDVO212)

Fornecedor: EDVOTEK

Descrição: The DNA from bacteriophage Lambda is a well-characterised linear molecule containing six recognition sites for <i>Eco</i> RI (5 distinct sites; 2 are very close in size). In this experiment, Lambda DNA is digested by the <i>Eco</i> RI endonuclease. The digestion products are analysed by agarose gel electrophoresis.

UOM: 1 * 1 KIT

Promoção

Fornecedor: EDVOTEK

Descrição: The three most frequently used restriction enzymes are Eco RI, Bam HI and Hind III. Each enzyme catalyses cleavage at the defined base sequence. All enzymes are lyophilised and contain 1500 units. One unit is defined as the amount of enzyme required to digest 1,0 µg of lambda DNA in 60 minutes at 37 °C in a total reaction mixture of 50 µl.

Código de Artigo: (EDVO225)

Fornecedor: EDVOTEK

Descrição: This experiment helps teach students about restriction enzyme digests in the context of forensic science. Students cut DNA with restriction enzymes and then compare the banding pattern of the crime scene DNA versus that of two suspects using agarose gel electrophoresis.

UOM: 1 * 1 KIT

MSDS Promoção

Código de Artigo: (EDVO266)

Fornecedor: EDVOTEK

Descrição: Milk proteins are the most common food allergens in children. Accurate detection and labeling is vital to inform consumers about potentially dangerous foods.

UOM: 1 * 1 KIT

Promoção

Código de Artigo: (EDVOS-47)

Fornecedor: EDVOTEK

Descrição: Investigate how agarose gel electrophoresis unlocks the color code used by food scientists to make colorful candies.

UOM: 1 * 1 KIT

Promoção

Código de Artigo: (EDVO300)

Fornecedor: EDVOTEK

Descrição: When DNA is subcloned in the pUC polylinker region, β-galactosidase production is interrupted, resulting in the inability of cells to hydrolyse X-Gal. This results in the production of white colonies amongst a background of blue colonies. This experiment provides a DNA fragment together with a linear plasmid and T4 DNA ligase. Following the ligation to synthesis the recombinant plasmid, competent <i>E. coli</i> cells are transformed and the number of recombinant antibiotic-resistant white and blue colonies are counted. β-galactosidase activity is assayed from blue and white bacterial cells.

UOM: 1 * 1 KIT

Promoção

Código de Artigo: (EDVO303)

Fornecedor: EDVOTEK

Descrição: Four experimental modules are combined into one experiment to provide a comprehensive biotechnology exploration focusing on the green fluorescent protein (GFP). Bacterial cells are transformed to express the GFP. The transformed cells are then grown and the GFP purified by column chromatography. Finally, the purity of the protein fractions are analysed by SDS polyacrylamide electrophoresis.

UOM: 1 * 1 KIT

Promoção

Código de Artigo: (EDVO235)

Fornecedor: EDVOTEK

Descrição: Microarray technology allows scientists to screen large numbers of samples in one assay. This technology allows high-throughput screening of small samples and allows comparisons to be made between healthy and unhealthy tissues. In this experiment, students apply simulated DNA and RNA samples to a membrane to screen for positive and negative samples.

UOM: 1 * 1 KIT

Promoção

Código de Artigo: (EDVO203)

Fornecedor: EDVOTEK

Descrição: Isolation of high molecular weight chromosomal DNA is the first step in molecular cloning since it is the source of genes in cells. This experiment provides DNA extraction LyphoCells and reagents for isolating chromosomal DNA from <i>E. coli</i>. After spooling from solution, the DNA can be dissolved and analysed by agarose gel electrophoresis as an optional lab extension activity.

UOM: 1 * 1 KIT

Promoção

Código de Artigo: (EDVO302)

Fornecedor: EDVOTEK

Descrição: In this experiment, students purify the restriction enzyme, <i>Eco </i>RI. This procedure utilised an ion exchange chromatograph step for <i>Eco </i>RI purification. Column fractions are assayed for the enzyme using Lambda DNA and digestion products are identified by gel electrophoresis. Fractions that contain <i>Eco </i>RI are identified and pooled. The total and specific activities are calculated. Recommended for advanced courses.

UOM: 1 * 1 KIT

Promoção

Fornecedor: G-Biosciences

Descrição: Determination of protein concentration is an essential technique in all aspects of protein studies and proteomics. The Assays for Protein Quantification kit includes three of the most widely used protein assays and allows for a direct comparison of the three assays that teaches students the benefits and limitations of each assay. Each assay is available individually to allow teaching of a specific assay, without the option of comparing and contrasting with other assays. The three assays covered are the Biuret Protein Assay, Lowry Protein Assay and the Coomassie Blue Dye Protein Assay. The Assays for Protein Quantification kit provides all the reagents required to perform both protein assays, including protein standards for accurate quantification, in a single lab activity. An often underestimated factor in quantifying protein is the presence of non-protein interfering agents, such as salts and detergents. This kit teaches students about common laboratory agents that affect the protein assays, the reasoning behind their interferences and how to overcome the interference. Students also learn how to select a protein assay for different applications.

Código de Artigo: (BE-405)

Fornecedor: G-Biosciences

Descrição: This lab activity involves analysis of an enzyme reaction using a specific enzyme substrate and inhibitor. Students study how the rate of enzyme reaction is dependent on substrate concentration and the influence of agents (inhibitors) and conditions that affects the enzyme reaction such as pH and temperature.

UOM: 1 * 1 KIT

Promoção