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Fractionation of Human Erythrocytes (Normal or Sickle) and Reticulocytes in Discontinuous Iodixanol - http://www.axis-shield.com/densityhome/optiprep/C35.pdf

Category: Cell Organelle Protocols: Subcellular Fractionation Protocols

A number of density gradient strategies have been developed for the fractionation of human erythrocytes according to their age. As the cells age, so their density tends to increase; reticulocytes therefore tend to have the lowest densities. Reticulocytes have frequently been partially purified on discontinuous gradients of arabinogalactan; the actual density range being quite varied, from quite broad ones. - [Read Fractionation of Human Erythrocytes (Normal or Sickle) and Reticulocytes in Discontinuous Iodixanol]

Real-Time PCR Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4112

Category: PCR Protocols: Real-Time PCR Protocols

Protocol uses FAM-(6-carboxy-fluorescein) or JOE-(6-carboxy-4', 5' -dichloro-2',7' -dimethoxy-fluorescein) labeled LUX (Light Upon eXtension) primers, which can quantify 100 or fewer copies of the target DNA in a background of nonspecific templates, over a broad dynamic range of less than 100-107 copies. It uses uracil deglycosylase (UDG) to minimize the risk of carryover contamination, and includes a melting curve analysis of the product. - [Read Real-Time PCR Protocol]

Storage of Sera Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/18/pdb.prot4279

Category: Antibody Protocols: Antibody Handling Protocols

This protocol describes the methods of storage for antibody-containing sera. Antibodies are resistant to a broad range of mildly denaturing conditions, so long-term storage is relatively easy. - [Read Storage of Sera Protocol]

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Absorption Spectroscopy and Quantification of Filamentous Phage Protocol

Unlike spherical phage, such as T4 and λ, which have roughly equal weight ratios of protein to DNA, filamentous phage have about six times more protein than DNA; the protein therefore contributes substantially to the absorption spectrum.