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Published on Jun 26, 2012
For more info, visit http://www.bio-rad.com/yt/4/Rotofor. This video tutorial provides an overview of the design and construction of the electrodes for Bio-Rad's Rotofor cell along with guidelines for their storage and use. The Rotofor 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 Rotofor and mini Rotofor cells use liquid-phase IEF to fractionate small to medium volumes (3-60 ml) of proteins in free solution based on isoelectric point (pI). Protein fractionation by pI improves sample loading and separation on narrow- and micro-range IPG strips in downstream 2-D electrophoresis applications.