Method assesses cellular mRNA transcripts in tissue sections and cell cultures using unique short anti-sense primers directed against sequences in particular protein(s). The unlabeled synthetic cDNA oligonucleotide primers are extended complementary to a sense mRNA transcript using reverse transcriptase and labeled through incorporation of a fluorescent-labeled dUTP nucleotide base. This procedure provides rapid detection of low abundance mRNA messages that can be related to other cellular.... - [Read Fluorescent In Situ Transcription in Cells and Tissues Protocol]
FP-TDI Method for SNP Detection. The FP-TDI protocol was originally reported by Drs. Chen, Levine, and Kwok at Washington University in 19991,2. FP-TDI stands for template directed dye terminator incorporation assay with detection by fluorescence polarization. It is a single base primer extension assay couple with homogeneous FP detection. Perkin Elmer - [Read FP-TDI Method for SNP Detection]
Protocol used chiefly to generate large stocks of double-stranded DNA of strains of M13 that are routinely used as cloning vectors. Large amounts of single-stranded DNA of an individual recombinant may occasionally be needed for specific purposes, e.g., to generate many preparations of a particular radiolabeled probe or to construct large numbers of site-directed mutants. - [Read Large-scale Preparation of Single-stranded and Double-stranded Bacteriophage M13 DNA Protocol]
Single-stranded templates of bacteriophage M13 DNA containing 20-30 residues of uracil in place of thymine are generated during growth of the bacteriophage in an F' strain of E. coli carrying mutations in the ung and dut genes. This DNA is used as a template in the Kunkel method of oligonucleotide-directed mutagenesis (Oligonucleotide-directed Mutagenesis of Single-stranded DNA). - [Read Preparation of Uracil-containing Single-stranded Bacteriophage M13 DNA Protocol]
This method is used to extend partial cDNA clones by amplifying the 5' sequences of the corresponding mRNAs. The technique requires knowledge of a small region of sequence within the partial cDNA clone. During PCR, the thermostable DNA polymerase is directed to the appropriate target RNA by a single primer derived from the region of known sequence. - [Read Rapid Amplification of 5' cDNA Ends 5'-RACE Protocol]
Plaques formed by M13 bacteriophages or bacterial colonies transformed by plasmids carrying specific mutations can be detected by hybridization, using a radiolabeled oligonucleotide that forms a perfect duplex with the mutant sequence. Hybridization is carried out under conditions of low stringency that allow the radiolabeled oligonucleotide to anneal to both mutant and wild-type DNAs. - [Read Screening Recombinant Clones for Site-directed Mutagenesis by Hybridization to Radiolabeled Oligos]
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.