Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2000-3-6
pubmed:abstractText
FISH probes for all human telomeres and specific telomeric probes that hybridize to unique sequences on individual chromosomes have been used to characterize the telomeric hybridization pattern of human peripheral blood lymphocytes and bone-marrow cells in interphase and metaphase chromosomes. We have identified the existence of double hybridization signals on chromatids both with the (TTAGGG)n telomere repeat arrays and on non chromosome-specific subtelomeric regions as well as on chromosome-specific sequences located several kilobases from the end of chromosomes. Preliminary results using cosmid or YAC probes that hybridize to regions rich in GC sequences also revealed double fluorescent spots on a single chromatid. Double spots were detected by PRINS on terminal and interstitial telomeric sequences in avian cells. The significance of this phenomenon is discussed based on some models of chromatid and DNA organization such as uninemy, looped chromatid organization and quartet DNA structures. The occurrence of double spots should be taken into consideration for the clinical cytogenetic diagnosis of duplications.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0003-3995
pubmed:author
pubmed:issnType
Print
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
202-9
pubmed:dateRevised
2006-4-6
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Double telomeric signals on single chromatids revealed by FISH and PRINS.
pubmed:affiliation
Laboratoire de Cytogénétique et de Génétique Oncologique, UMR 1599, Institut Gustave Roussy, Villejuif, France.
pubmed:publicationType
Journal Article