| Literature DB >> 3610673 |
A F Cremers, N Jansen in de Wal, J Wiegant, R W Dirks, P Weisbeek, M van der Ploeg, J E Landegent.
Abstract
A number of immunocytochemical detection systems for determining the chromosomal localization of specific nucleic acid sequences by non-radioactive in situ hybridization have been compared. The procedures were: 1. the peroxidase/diaminobenzidine (PO/DAB) combination, either or not gold/silver intensificated; 2. alkaline phosphatase marking using the nitro-blue tetrazolium plus bromochloro-indolyl phosphate substrate combination (AP/NBT + BCIP); and 3. immunogold with or without silver enhancement. The procedures were first tested and optimized in dot blot experiments and then applied to in situ hybridization. As hybridization probes, both a middle-repetitive and a unique sequence (modified with 2-acetylaminofluorene (AAF] were used. The advantages and disadvantages of the various methods for reflection contrast (RC) or transmission electron microscopic (TEM) visualization of hybrids are discussed.Entities:
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Year: 1987 PMID: 3610673 DOI: 10.1007/bf00489555
Source DB: PubMed Journal: Histochemistry ISSN: 0301-5564