The combination of prospective identification/isolation of bone marrow progenitors and quantitative RT-PCR is a powerful tool to understand the molecular mechanism underlying hematopoiesis. Describes the standard procedures of the murine myeloid progenitor staining for fluorescence activated cells sorting (FACS) and RNA purification methods. - [Read Cell Staining for Sorting of Hematopoietic Stem Cells (HSC) and Myeloid Progenitors]
The combination of prospective identification/isolation of bone marrow progenitors and quantitative RT-PCR is a powerful tool to understand the molecular mechanism underlying hematopoiesis. Here, we described our standard procedures of the murine myeloid progenitor staining for fluorescence activated cells sorting (FACS) and RNA purification methods. - [Read Cell Staining for Sorting of Hematopoietic Stem Cells and Myeloid Progenitors and Isolating RNA]
Genome-wide location analysis, also known as ChIP-Chip, combines chromatin immunoprecipitation and DNA microarray analysis to identify protein-DNA interactions that occur in living cells. Protein-DNA interactions are captured in vivo by chemical crosslinking. Cell lysis, DNA fragmentation and immunoaffinity purification of the desired protein will co-purify DNA fragments that are associated with that protein. - [Read Chromatin Immunoprecipitation and Microarray-Based Analysis of Protein Location Protocol]
The first step in competitive RT-PCR is the synthesis and purification of the synthetic competitor. This is an RNA molecule designed to be reverse-transcribed and PCR-amplified with the same efficiency as the endogenous transcript of interest. Once the competitor molecule has been prepared, as described in this protocol, competitive PCR can be carried out. - [Read Competitive RT-PCR: Preparation of Competitor RNA Protocol]
Cyanine Dye Purification Protocol using Sep-Pak and HPLC purification protocol for Cy dyes (un)incorporated with dNTP. Brown Lab Howard Hughes Medical Institute - [Read Cyanine Dye Purification Protocol Cy]
Protocol for direct retrieval of DNA fragments from pulsed-field gels. A gel slice containing a fragment of DNA resolved by pulsed-field gel electrophoresis is treated with agarase. The released DNA can be used as a substrate for ligation or restriction without further purification. - [Read Direct Retrieval of DNA Fragments from Pulsed-field Gels Protocol]
The goal of this method is to identify transcriptionally active genes in cloned segments of genomic DNA. The protocol uses hybridization and affinity purification to recover biotin-labeled cDNAs that bind to a 500-kb segment of human DNA cloned in a BAC vector. However, the method can be easily adapted to other clones of genomic DNAs cloned in high-capacity vectors. - [Read Direct Selection of cDNAs with Large Genomic DNA Clones Protocol]
Agarose gel purification,
Annealing and extending, oligonucleotides, Ethanol Precipitation, Ligation
Miniprep, Oligonucleotide purification, Recovering DNA bands, Restriction digest
Gene Clean. The Hu Lab. - [Read DNA cloning Procedures]
DNA Electroelution- http://rothlab.ucdavis.edu/protocols/dna-electroelution.html
DNA Electroelution. This protocol describes the purification of DNA by trapping in a high-salt cushion in a "UEA AnalyticalElectroeluter" (IBI). This machine is no longer manufactured, to our knowledge. However, a smiliar device can be easily made from Plexiglas according to the following diagram, taken from Cornel Mulhardt, Molecular Biology and Genomics (2007) Academic Press, p.52: Schimenti Lab - [Read DNA Electroelution]
DNA Extraction from Agarose Gels Protocol. The page includes cutting out the DNA band from the gel, and describes three methods including 1) Spin-columns (Nucleic acid purification columns), 2) using Dialysis tubing (semi-permeable membrane, Visking tubing), and the 3) Paper strip method.Matt Lewis, Department of Pathology, University of Liverpool. - [Read DNA Extraction from Agarose Gels Protocol]
DNA Fragment Purification from Agarose or Acrylamide. The protocol for fragments from 200 bp to 10 kb the agarose purification is ideal. For smaller fragments (20 bp to 400 bp) the acrylamide purification is preferred. - [Read DNA Fragment Purification from Agarose or Acrylamide]
Protocol for DNA fragment purification from agarose or acrylamide. For fragments from 200 bp to 10 kb the agarose purification is ideal. For smaller fragments (20 bp to 400 bp) the acrylamide purification is preferred. - [Read DNA Fragment Purification from Agarose or Acrylamide Protocol]
DNA Fragment Purification from Agarose Protocol. This protocol is best for fragments from 200 bp to 10 kb the agarose purification is ideal. For smaller fragments (20 bp to 400 bp) the acrylamide purification is preferred. - [Read DNA Fragment Purification from Agarose Protocol]
Magnetic DNA affinity purification of yeast transcription factor tau--a new purification principle for the ultrarapid isolation of near homogeneous factor. Gabrielsen et al. 1989 - [Read DNA-Binding Protein Purification with Dynabeads.]
E.coli total RNA labeling protocol for high density oligonucleotide array. Includes: RNA Preparation; Digest RNA and Purification of cDNA; Purify cDNA with Qiaquick PCR purification kit; cDNA Fragmentation and end labeling; Labeling with Terminal Transferase. - [Read E.coli Total RNA Labeling Protocol for High Density Oligonucleotide Array]
Primer design, Primer annealing, Primer labelling, Probe purification, In vitro hybridization DNA-protein Binding reaction. Jonathan Flint. - [Read EMSA Protocol using 32-p.]
DNA microarrays are an ordered arrangement of DNA molecules complementary to genes of interest that are "spotted" by robotic equipment onto a glass slide substrate. The expression of genes in cells can be monitored with microarrays by preparing cDNA from the mRNA of cells of interest and measuring the hybridization to the microarray. This protocol describes the labeling of genomic DNA for use as a probe for hybridization to the cDNA spotted on the array.
This Microarray Protocol Preparation of Fluorescent DNA Probes from Human mRNA protocol describes the production of probes labeled with the fluorescent dyes, Cy3 and Cy5, following the synthesis of cDNA from human mRNA and the hybridization of the probes to DNA microarrays.
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.