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.
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.
Mixed-Mode Chromatography for mAb S Aggregate Removal: Comparison of CHT™ Ceramic Hydroxyapatite, Capto adhere, and Capto adhere ImpRes
The separation of monomers from product-related impurities is quite challenging in process separations. It requires a thorough screening and an efficient resin to get efficiency in the purification process. Review the performance data of Bio-Rad’s mixed mode CHT™ Ceramic Hydroxapatite in achieving process separation efficiency and how it compares with various Capto media.
The best chromatography media should yield high protein purity and product recovery as well as be versatile enough to purify difficult samples. Bio-Rad’s CHT™ Ceramic Hydroxyapatite achieves this by virtue of being able to interact with the proteins through multiple modes, making the process extremely efficient. The whiteboard animation describes the mode of action of CHT.
What can chromatography peaks tell us? From the quality of column packing to the purity of separated proteins, a lot can be gleaned from the peaks. Here are some definitions that can help decipher what chromatography peaks can tell us.
Some of the frustrations in protein purification stem from unmet chromatography needs, such as automation, productivity, throughput, and reproducibility among others. Bio-Rad’s new Multi-D chromatography method addresses these and provides solutions to faster, efficient and more reliable protein purification.
Advantages of Multidimensional (Multi-D) Chromatography Using the NGC™ Chromatography System over Traditional Sequential Chromatography
Traditional sequential chromatography typically requires intensive hands-on user manipulation, which could hinder the reproducibility of protein purification runs. Multi-D chromatography aims to improve this process while maintaining the efficacy of the traditional workflow.
The NGC Chromatography System introduces a new level of modularity and usability for protein purification. The modular design of the NGC System provides multiple configurations, each addressing different requirements. Use our configurator tool to build your own system to meet your specific workflow and throughput needs.
What does automated protein purification mean today? What might it look like tomorrow? Bioradiations talks to a variety of users about what they’re doing now to implement automation in their purification processes, and what possibilities they envision that will improve chromatography in the near future.
While using affinity tagging is the preferred method to achieve highly pure protein through recombinant expression, this approach isn’t feasible for all proteins. This tech report describes workflow optimizations using the NGC Chromatography System that allow users to achieve high purities with untagged proteins.