In situ nick translation of metaphase chromosomes with biotin-labeled d-UTP

1985 ◽  
Vol 69 (2) ◽  
pp. 117-121 ◽  
Author(s):  
Sabine Adolph ◽  
Horst Hameister
Genome ◽  
1994 ◽  
Vol 37 (6) ◽  
pp. 950-956
Author(s):  
Rosalba Del Coco ◽  
Liborio Stuppia ◽  
Caterina Cinti ◽  
Rita Peila ◽  
Nadir Mario Maraldi

Fixed human metaphase chromosomes were progressively digested with DraI or HaeIII restriction enzymes, submitted to in situ nick translation, and observed by transmission electron microscopy to obtain further information on the localization of the endonuclease target sequences and on the conformational changes in chromosomal bands. This approach allows us to detect specific nick translation patterns, namely, G-banding or R-like banding after short DraI and HaeIII endonuclease digestion, respectively. Intermediate banding recognizable as C-negative banding and G + C banding are induced by longer HaeIII digestion, before the C-positive banding. These patterns appear to depend both on different target sites of the employed endonucleases and on the DNA loss at different digestion times.Key words: human chromosomes, in situ nick translation, DraI banding, HaeIII banding, electron microscopy.


Author(s):  
Barbara Trask ◽  
Susan Allen ◽  
Anne Bergmann ◽  
Mari Christensen ◽  
Anne Fertitta ◽  
...  

Using fluorescence in situ hybridization (FISH), the positions of DNA sequences can be discretely marked with a fluorescent spot. The efficiency of marking DNA sequences of the size cloned in cosmids is 90-95%, and the fluorescent spots produced after FISH are ≈0.3 μm in diameter. Sites of two sequences can be distinguished using two-color FISH. Different reporter molecules, such as biotin or digoxigenin, are incorporated into DNA sequence probes by nick translation. These reporter molecules are labeled after hybridization with different fluorochromes, e.g., FITC and Texas Red. The development of dual band pass filters (Chromatechnology) allows these fluorochromes to be photographed simultaneously without registration shift.


1993 ◽  
Vol 41 (7) ◽  
pp. 1023-1030 ◽  
Author(s):  
R Gold ◽  
M Schmied ◽  
G Rothe ◽  
H Zischler ◽  
H Breitschopf ◽  
...  

Since DNA fragmentation is a key feature of programmed cell death (PCD) and also occurs in certain stages of necrosis, we have adapted the methodology of in situ nick-translation (ISNT) to detect DNA fragmentation on a single-cell level. We first established the technique for cell preparations. Apoptosis was induced by gamma-irradiation on freshly isolated rat thymocytes. After fixation procedures, ISNT was performed by overnight incubation either with fluorescein-12-dUTP or with digoxigenin-labeled 11-dUTP and DNA polymerase I. The enzymatic incorporation of labeled nucleotides at sites of DNA fragmentation was detected by flow cytometry either directly or indirectly with fluorescein-conjugated anti-digoxigenin. The quantitative results demonstrated close correlation with morphological essays for apoptosis, DNA gel electrophoresis, and ISNT. Proliferating cells determined by bromodeoxyuridine immunofluorescence were not labeled by ISNT. Immunocytochemistry for cell surface antigens in combination with ISNT allowed the identification of specific cell types undergoing PCD. Furthermore, the simultaneous application of photolabeling techniques with ethidium monoazide and ISNT led to the identification of DNA fragmentation in cells with still intact membranes. Extending ISNT to tissue sections of paraformaldehyde-fixed, paraffin-embedded material reliably revealed labeling of cells with typical morphological features of apoptosis. However, this technique was not useful in detecting early stages of necrotic cell death.


1992 ◽  
Vol 62 (2) ◽  
pp. 150-153
Author(s):  
Li Zhengang ◽  
Howard L. Hosick ◽  
Kang Fan

1995 ◽  
Vol 200 (2) ◽  
pp. 129-132 ◽  
Author(s):  
Muneshige Tobita ◽  
Isao Nagano ◽  
Shozo Nakamura ◽  
Yasuto Itoyama ◽  
Kyuya Kogure

Genome ◽  
1993 ◽  
Vol 36 (2) ◽  
pp. 268-270 ◽  
Author(s):  
J. de la Torre ◽  
C. López-Fernández ◽  
P. Herrero ◽  
J. Gosálvez

The in situ nick translation procedure performed on fixed meiotic chromosomes partially cleaved with restriction endonucleases shows a different staining of homologous heterochromatic regions, which could be explained through a differential restriction endonuclease cleavage. Mutations occurring before massive tandem duplication and involving those DNA motifs that produce these heterochromatic blocks, together with the absence of DNA recombination that characterizes these particular regions, could explain the observed results. This method for chromosome labelling is most useful to demonstrate a certain level of heterochromatin heterogeneity that is present in the genome of living species but remained cryptic to other techniques that are also able to induce longitudinal differentiation of the chromosomes.Key words: cytogenetics, nick translation, meiosis, heterochromatin.


2008 ◽  
Vol 28 (2) ◽  
pp. 173-176 ◽  
Author(s):  
Jörn Bullerdiek ◽  
Jürgen Dittmer ◽  
Angelika Faehre ◽  
Sabine Bartnitzke ◽  
Volker Kasche ◽  
...  

Nature ◽  
1983 ◽  
Vol 304 (5921) ◽  
pp. 88-90 ◽  
Author(s):  
Bat-Sheva Kerem ◽  
Ruth Goitein ◽  
Carmelit Richler ◽  
Menashe Marcus ◽  
Howard Cedar

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