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Southern Blotting: Simultaneous Transfer of DNA from a Single Agarose Gel to Two Membranes Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/2/pdb.prot4043

Category: Nucleic Acid Detection Protocols: Nucleic Acid Blotting Protocols

Protocol for southern blotting: simultaneous transfer of DNA from a single agarose gel to two membranes. DNA can be simultaneously transferred from opposite sides of a single agarose gel to two membranes. Bidirectional transfer occurs rapidly at first, but soon slows down as the gel becomes dehydrated. Because the efficiency of transfer is low, the method works best when the target sequences are present in high concentration - [Read Southern Blotting: Simultaneous Transfer of DNA from a Single Agarose Gel to Two Membranes Protocol]

Whole Cell Patch Clamp Technique - http://www.iac-usnc.org/Methods/wholecell/index.html

Category: Neuroscience Protocols: Patch Clamping Protocols

The technique of patch clamp recording was invented by Bert Sakmann and Erwin Neher in 1981 for which they received the NOBEL prize. The technique is best suited for the study of the behaviour of single ion channels, or macroscopic currents in small cells or macro-patches. The whole cell technique allows one to control the composition of solutes on both sides of the membrane. - [Read Whole Cell Patch Clamp Technique]

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Lambda Phage Protocol Large DNA Preparation

Electrotransformation of BMH 81-17mut S for Isolating Site-Directed dsDNA Mutants

This protocol describes the electroporation of the BMH 81-17 mut S strain that is recommended for tranformation of the site directed mutagenesis of dsDNA (See Protocol on Site-Directed Mutagenesis on Double Stranded DNA). BMH 81-17 mut S are a mismatch repair defective (mut S) Escherichia coli strain. The probability that the two mutations will cosegregate during the first round of DNA replication is increased in this strain.

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