:: Posted by American Biotechnologist on 06-15-2010
Here’s the latest video from Bio-Rad Laboratories demonstrating how to use the Profinia Protein Purification System. The Profinia offers fast, automated affinity purification that is ready to roll with the touch of a button. Best of all, dialysis is performed on-column and you end up with desalted, purified protein with an estimated protein concentration.
Watch the video for a detailed explanation to see how it’s done.
:: Posted by American Biotechnologist on 03-18-2010
Affinity purification of protein is a common technique in most protein labs which is often the bottle neck in achieving faster experimental results. The technique usually involves the use of HIS or GST tags which need to be enzymatically cleaved from of the recombinant protein in a laborious and time-consuming process so as not to interfere with the protein’s functional activity or crystallization process. Furthermore, many functional assays and crystallography experiments require large amounts of protein which can be frustrated by the drawn-out purification/tag cleavage process.
In this technical note, Justin L. Burns et. al. from the Georga Insitute of Technology report how the combination of the Profinity eXact fusion-tag and Profinia automated purification system allowed them to recover milligram quantities of protein from a gram-negative bacteria in under 2 hours.
Purify Protein in Under 120 Minutes