Purifying nuclear pellets, Extraction of DNA from nuclei. Method for DNA isolation from Blood. Genomic Variation Laboratory, UC Davis. - [Read DNA extraction from blood]
In this protocol, the DNA-binding capacity of Wizard MagneSil particles is used to capture and release a consistent amount of DNA (100 ng) across a wide range of samples. At the end of the procedure, the DNA is eluted into 100 µl Elution Buffer to give a final concentration of 1 ng/µl, relieving the need for postpurification DNA quantitation. - [Read DNA IQ Isolation of Genomic DNA from Stains and Buccal Swabs Protocol]
A detailed protocol for bisulfite treatment of DNA. DNA is first digested with a restriction enzyme. DNA is denauted at 97C for 5min. Bisulfite protocol is included. Also DNA purification using the Promega Wizard DNA Cleanup kit in indicated. Fan Lab. UCL - [Read Fan Lab Bisulfite Treatment of Genomic DNA]
Protocol describes methods for isolation of DNA from a strain of S. cerevisiae carrying a recombinant YAC. Because the linear YAC DNAs are sensitive to shearing forces, pipettes with wide-bore tips should be used to transfer DNAs. The method is suitable for preparing DNA that will be used for agarose gel electrophoresis, Southern blotting, subcloning, genomic library construction, PCR, or other methods that do not require intact high-molecular-weight DNA. - [Read Growth of S. cerevisiae and Preparation of DNA Protocol]
Inverse PCR is used to amplify and clone unknown DNA that flanks one end of a known DNA sequence and for which no primers are available. The technique involves digestion by a restriction enzyme of a preparation of DNA containing the known sequence and its flanking region. The individual restriction fragments (many thousands in the case of total mammalian genomic DNA) are converted into circles by intramolecular ligation, and the circularized DNA is then used as a template in the PCR. - [Read Inverse PCR Protocol II]
Procedure is used to prepare DNA simultaneously from many different types of samples or tissues. Although the DNA is generally too small (approx. 80 kb) for efficient construction of genomic DNA libraries, it gives excellent results in Southern hybridizations and PCRs. Cultured aneuploid mammalian cells (2 x 107, e.g., HeLa cells) yield 100 µg of DNA in a volume of 1 ml. - [Read Isolation of DNA from Mammalian Cells by Spooling Protocol]
Method of choice when large amounts of mammalian DNA are required, for example, for Southern blotting (Rapid Isolation of Mammalian DNA, Rapid Isolation of Yeast DNA, Southern Blotting: Capillary Transfer of DNA to Membranes) or for construction of genomic libraries in bacteriophage {lambda} vectors. Approximately 200 µg of mammalian DNA, 100-150 kb in length, is obtained from 5 x 107 cultured aneuploid mammalian cells (e.g., HeLa cells). - [Read Isolation of High-molecular-weight DNA from Mammalian Cells Using Proteinase K and Phenol Protocol]
Retroelements and their derivatives are a ubiquitous and abundant component of plant genomes. Major classes of retroelements include the Pseudoviridae (Ty1-copia ), the Metaviridae (Ty3 -gypsy) and the Retroposineae LINE (non-LTR) groups. All reverse transcribing elements can be included in a universal classification. Includes: Pseudoviridae (Ty1-copia) Degenerate Primers; Metaviridae (Ty3-gypsy) Element Degenerate Primers; LINE Element Degenerate Primers; PCR Programmes. - [Read Isolation of Retroelement from Plant Genomic DNA]
Pilot ligations and packaging reactions are used to establish the amounts of fragmented genomic DNA and bacteriophage {lambda} arms that yield the maximum number of recombinants. Additional ligation and packaging reactions may then be set up to yield a comprehensive library of genomic DNA. - [Read Ligation of Bacteriophage lambda Arms to Fragments of Foreign Genomic DNA Protocol]
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.
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.