Articles

Producing highly purified proteins in large quantities is a challenge and requires modification of methods and protocols to attain high efficiency. Dr Murat Kasap from Kocaeli University, Turkey, has overcome these difficulties by taking advantage of the modularity of the NGC Chromatography System and successfully synthesized and purified cardiac troponin-I protein.

It is imperative to analyze both the transcriptional and translational profiles for a complete understanding of the functioning of genes. Here we describe a simple protocol that enables parallel analysis of both RNA and protein from single cell culture lysates. See how this workflow could save time and money and yield more reliable data than the traditional protocols used.

In this multi-part series on assessing the health of your cells, we review different factors to be considered in your assessments such as cell viability, proliferation, apoptosis, and autophagy. The first part covers the methods for assessing viability and proliferation and their advantages, and discusses some common considerations.

Protein purification becomes a challenging step for applications requiring high protein concentrations (such as structural biology studies). This is also true for researchers purifying integral membranes proteins and untagged proteins from native sources. Here we provide some useful tips for selecting the proper resins, optimizing conditions and developing effective strategies to tackle the challenges associated with such difficult-to-purify proteins.

Picking the right gel for your application is not easy. It depends on so many factors, such as the purpose of your application, the size of your protein, what kind of buffer you need to have in your sample etc. Here we provide a guide for you to choose the best Bio-Rad gel based on all these factors.

Striking a balance between encouraging innovation and allowing access to knowledge is not simple. Allowing patents for modifications of naturally occurring organisms and cells pose a particular challenge to the scientific community. Adding to the complexity is the variations in regulations between countries. This article discusses these issues with specific examples in biotechnology and biomedical fields.

Do we ever think seriously about PCR plates, seals, and tubes as contributing to the quality of our gene expression results? Chances are that these PCR plastics are viewed just as labware by most people. In this article we bring out how simple factors, such as PCR plate rigidity, color of the wells, and adhesiveness of plate seals, can affect your gene expression results and show why it is important to use quality PCR plastics.

Multicolumn purifications are tedious and the manual operations during this process introduce variabilities, affecting the success of purification and reproducibility of results. This whiteboard animation explains how an automated multi-dimensional chromatography method can make this an easier process with very high success rates.

To run a core flow cytometry lab is no easy task. There is always a balance between running simple sorts and developing new assays for answering complicated questions that demand pushing the limits of existing assays and the limitations of the sorters. See how Andy Riddell, a flow core manager, pushes the limits of his existing assays and how Bio-Rad’s S3e™ cell sorter is allowing him to accomplish that.

Interference from IgG heavy (~ 50 kD) or light (~25 kD) chains is very common when trying to visualize bands of immunoprecipitated proteins. If your band of interest has a molecular weight close to these, it becomes really hard to distinguish between the IgG and the band of interest. How could this be avoided? Bio-Rad’s new TidyBlot™ Western Blot Detection Reagent accomplishes this by binding exclusively to the native nondenatured antibodies rather than any IgG in the sample. Explore the performance characteristics of this new reagent.