The nucleus contains most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these chromosomes make up the cell's nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression. Find here information and protocols relating to the nucleus.
Cajal Body Isolation Protocol Cajal Body Isolation Protocol. Protocol includes: Sonication, Removal Nucleoi, Gradient One, Gradient two, Concentration and final enrichment of cajal bodies. Also includes: Making 2.55M sucrose stock and Analysis of the enriched Cajal body fraction.
CHO Centrosome Prep Protocol The key step is the lysis which solubilizes centrosomes away from nuclei by very low ionic strength lysis after treatment of cells with nocodazole and cytochalasin B. The released centrosomes are then centrifuged onto a Ficoll cushion (to avoid pelleting) and the interface between the lysate and the Ficoll is collected and the centrosomes are concentrated on a sucrose gradient. Fractions are assayed by spindown and double IF with 5051 serum and anti-tubulin and the pooled fractions are frozen...
Protocol for Nonradioactive In Situ Hybridization to Polytene Chromosomes With DIG-labeled DNA Prob A simplified and efficient protocol for nonradioactive in situ hybridization to polytene chromosomes with a DIG-labeled DNA probe. Includes: Labeling the hybridization probe; Preparation and denaturation of polytene chromosomes from Drosophila, Chironomus, or other species; Hybridization and detection;
