Linked Life Data

6439496

Source:http://linkedlifedata.com/resource/pubmed/id/6439496

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1985-2-21
pubmed:abstractText
An antibody was raised against "high mobility group" nuclear protein 14 (HMG 14) from calf thymus, known to be associated with actively transcribed chromatin. By means of indirect immunofluorescence, it was shown to react with the nuclei of mouse fibroblasts and of brain cells from Xenopus and Drosophila, but not of Xenopus erythrocytes. The antibody was used to detect immunologically related proteins in giant chromosomes of the midge, Chironomus pallidivittatus. Indirect immunofluorescence with anti-HMG 14 antibody in polytene nuclei was restricted to the active puffs. Giant puffs (Balbiani rings) exhibited especially intense fluorescence in their peripheral regions. An inducible puff site, the Balbiani ring 6 locus, showed no reaction with the antibody prior to induction. When puff formation began, the chromosome site assumed a very intense fluorescence, which disappeared again when the Balbiani ring was recondensed. - Protein extracts of salivary gland nuclei were found on immunoblots to contain one major protein fraction that reacted with the anti-HMG 14 antibody. The electrophoretic mobility of this fraction was similar to that of calf thymus HMG 17. - It is concluded that actively transcribed puffs in polytene chromosomes contain HMG 14-related protein(s) that are not present in potentially active gene loci prior to induction.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0009-5915
pubmed:author
pubmed:issnType
Print
pubmed:volume
90
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
355-65
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Localization of nuclear proteins related to high mobility group protein 14 (HMG 14) in polytene chromosomes.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't