Linked Life Data

6679413

Source:http://linkedlifedata.com/resource/pubmed/id/6679413

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1983-7-8
pubmed:abstractText
Study of ultrathin sections of the Chinese hamster normal cells and cells treated with solutions containing decreasing concentrations of Ca++ and Mg++ ions revealed several discrete levels of DNP-fibres organization in mitotic and interphase chromosomes. In total Ca++ and Mg++ concentrations from 4 mM to 0.3 mM, the chromosomes are formed by filamentous elements or chromonema of 100-nm diameter. During gradual decrease of Ca++ concentration to 0.2-0.1 mM the chromosomes decondensate into discrete chromatin structures--chromomeres. In decondensation, the chromomeres acquire a "rosette-like" structure with an electron dense core and DNP-fibers radiating from it. Levels of DNP compactization in chromosomes are supposed to be as follows: the nucleosomal fibres of 10-nm diameter, nucleomeric fibres of 25-nm diameter and chromonema, i.e. a filamentous structure of 100-nm diameter consisting of chromomeres.
pubmed:language
rus
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0041-3771
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
123-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
[Electron microscopic study of the chromonema and chromomeres in mitotic and interphase chromosomes].
pubmed:publicationType
Journal Article, English Abstract