In this protocol, bacterial cells are lysed by being subjected to short, intense treatments with ultrasound, which breaks the cell walls and shears the DNA into sizes that will not affect the viscosity of the samples. Note that this method causes some denaturation of the samples. The resulting lysate is ready for preclearing. - [Read Immunoprecipitation: Lysing Bacteria by Sonication Protocol]
Protocol for In situ hybridization to human metaphase chromosomes using DIG-, biotin-, or fluorochrome-labeled DNA probes and detection with fluorochrome conjugates. Includes: Pretreatment of metaphase spreads on slides; Denaturation and hybridization; Single color fluorescent detection with immunological amplification; Multicolor fluorescence in situ hybridization (Multicolor FISH); Results obtained with human metaphase chromosome spreads. - [Read In Situ Hybridization to Human Metaphase Chromosomes using DIG-, Biotin- or Fluorochrome-Labeled DNA]
Protocol for multiple-target DNA in situ hybridization with enzyme-based cytochemical detection systems. Includes: Cell preparations; Cell processing; Probe preparation; Multiple-target in situ hybridization (ISH); ISH with separate probe and target denaturation [for probes with repetitive (e.g., Alu) elements]; Post-hybridization washes; Enzyme-based cytochemical detection; etc.. - [Read Multiple-Target DNA In Situ Hybridization with Enzyme-Based Cytochemical Detection Systems Protocol]
The protocol given makes the method of in situ hybridization easier, faster, more reliable, and available to anyone who can operate a microscope. Includes: Labeling the hybridization probe; Preparation and denaturation of polytene chromosomes
from Drosophila, Chironomus, or other species; Hybridization and detection. - [Read Protocol for Nonradioactive In Situ Hybridization to Polytene Chromosomes with a DIG-labeled DNA]
SNP Genotyping System. Includes: Protocol for Manual READIT® Assay in Multiwell Plates; Preparation of L/L Reagent; Preparation of Heating Block; CIAP/Exo Treatment; Preparation of Interrogation Probe Solutions; Template Denaturation; Sample Interrogation; Protocol for Manual Plate Reading Luminometers; Protocol for Injecting Plate Reading Luminometers; Protocol for Automated READIT® Assay with the Biomek® 2000 Instrument. - [Read SNP Genotyping System]