Higher-order chromatin structure of human granulocytes

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Authors

BÁRTOVÁ Eva KOZUBEK Stanislav JIRSOVÁ Pavla KOZUBEK Michal LUKÁŠOVÁ Emilie SKALNÍKOVÁ Magdalena GAŇOVÁ Alena KOUTNÁ Irena PASEKOVÁ Renata

Year of publication 2001
Type Article in Periodical
Magazine / Source Chromosoma
MU Faculty or unit

Faculty of Informatics

Citation
Web abstract
Field Genetics and molecular biology
Keywords chromatin structure
Description The structural organisation of chromatin in eukaryotes plays an important role in a number of biological processes. Our results provide a comprehensive insight into the nuclear topography of human peripheral blood granulocytes, mainly neutrophils. The nuclei of granulocytes are characterised by a segmented shape consisting of two to five lobes that are in many cases connected by a thin DNA-containing filament. The segregation of chromosomes into the nuclear lobes was studied using fluorescence in situ hybridisation (FISH). We were able to distinguish different topographic types of granulocytes on the basis of the pattern of segregation. Five topographic types were detected using, dual-colour FISH in two-lobed nuclei. The segregation of four sets of genetic structures could be studied with the aid of repeated FISH and a large number of topographic types were observed. In all these experiments a non-random distribution of chromosomes into nuclear lobes was found.
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