Protocol for double immunofluorescence staining for BCL-6. Any type of tissue is suitable for this technique, as long as the antigenicity for your antigen(s) is preserved. Includes: unfixed or acetone-fixed specimens; dewaxed, antigen retrieved slides. - [Read Double Immunofluorescence Staining for BCL-6 Protocol]
Plasmid (pUC series) containing genomic DNA fragments are maintained in E. coli strain DH5aTM. The E. coli cultures are routinely cultured at 37 C on Luria-Bertani (LB) agar on or in LB broth containing Ampicillin (30 µg/ml) or Carbenicillin (50 µg/ml broth, 100 µg/ml agar). E. coli strains are usually preserved in stab agar or glycerol for mid-term storage and lyophilized for long-term storage. - [Read Maintenance of Probes in Bacteria Including Escherichia coli Protocol]
Most histological studies are carried out on paraformaldehyde-fixed, paraffin-embedded tissue samples. Therefore, there is an extensive atlas of most tissues and organs prepared from these sources, and comparing the location of antigens to these data is immediately informative. The fixation and embedding procedures are harsh, however, and many antigens are not well preserved. - [Read Preparing Paraffin Tissue Sections for Immunostaining Protocol]
Bacterial colonies growing on agar plates are transferred en masse to nitrocellulose filters. The spatial arrangement of colonies on the plates is preserved on the filters. After transfer, the filters are processed for hybridization to an appropriate radiolabeled probe while the original (master) plate is incubated for a few hours to allow the bacterial colonies to regrow in their original positions. - [Read Screening Bacterial Colonies by Hybridization: Intermediate Numbers Protocol]