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Preparation of siRNAs from Drosophila Embryo Extracts Protocol - http://www.cshprotocols.org/cgi/content/extract/2006/1/pdb.prot4325

Category: RNAi Technology Protocols: RNAi Drosophila Protocols

siRNAs produced upon the addition of dsRNA to Drosophila embryo extract are enriched in a micrococcus-nuclease-resistant fraction. After proteinase K treatment and dephosphorylation with calf intestinal phosphatase, these siRNAs mediate efficient RNAi in vitro. - [Read Preparation of siRNAs from Drosophila Embryo Extracts Protocol]

Articles (1-6 of 6)

Probe Preparation for 22 x 40 mm DNA Microarrays

Probe Preparation for 22 x 40 mm DNA Microarrays Protocol.

Immobilized Antigen Phage Antibody Selection Protocol

A protocol for the selection of Phage Antibodies using Immobilized Antigen. This method describes the selection of antibodies from bacteriophage antibody libraries that recognize a specific antigen. The phage display library of antibody-displaying phage particles is exposed to antigen attached to a solid substrate (Nunc Immuno™ tubes). The phage particles with affinity for antigen bind to the immobilized antigen and are selected from the library of phage expressing antibodies.

DNA Ligation Protocol

The DNA Ligation protocol described here contains the steps required to join together using ligase enzyme both plasmid DNA and insert DNA fragments in order to create a new plasmid. This new ligated plasmid can be transformed after into competent bacteria to produce DNA for mini, midi or maxi-prep isolation.

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.

Vector Design Protocol for Transgenic Mice Generation

The protocol gives general considerations for the design of targeting vectors for transgenic mice. The protocol shares tips in the design of knock-out and knock-in vectors and some of their strategies for producing homologously recombined embryonic stem cells.