MicroRotofor™ Tutorial — Harvesting

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Bio-Rad Laboratories

"For more info, visit http://www.bio-rad.com/yt/3/MicroRotofor. This video tutorial demonstrates fraction collection from Bio-Rad's MicroRotofor cell using the integrated harvesting tray/vacuum aspiration assembly. Full separation by isoelectric point (pI) is visually confirmed by observation of the migration of the colored protein standards. The MicroRotofor cell offers rapid, simple, and effective fractionation and enrichment of proteins from complex protein mixtures. Due to the great complexity of samples such as tissues, cells, and body fluids, protein researchers may want to fractionate crude samples prior to analysis by two-dimensional (2-D) gel electrophoresis. Fractionation is particularly relevant when trying to detect low-abundance proteins in samples like serum, cerebrospinal fluid (CSF), and urine because of the presence of highly abundant proteins such as albumin and immunoglobulins. The MicroRotofor cell uses liquid-phase IEF to fractionate small volumes (2.5 ml) of proteins in free solution based on pI. Protein fractionation by pI improves sample loading and separation on narrow- and micro-range IPG strips in downstream 2-D electrophoresis applications. http://www.bio-rad.com/evportal/destination/commerce/product_detail?catID=b30915de-43cb-4b45-ac11-8067e592c8c0&WT.mc_id=yt-lsd-ww-microrotofor-20120912-ngJkRiwXcHA"