Document Detail


The role of adenovirus early region 1A in the regulation of early regions 2A and 1B expression.
MedLine Citation:
PMID:  6316655     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The role of the adenovirus early region 1A (E1A) in the regulation of expression of early regions 2A (E2A) and 1B (E1B) has been investigated by microinjection of cloned segments of viral DNA into cultured cells. Plasmids carrying adenoviral sequences that code for the DNA binding protein (DBP) associated with either the early or the late E2A promoter (at map coordinates 75 and 72, respectively), or both promoters, were injected into cell nuclei in the presence or absence of a plasmid DNA containing early region 1A. The injected cells were scored for the expression of the DNA binding protein by indirect immunofluorescence using specific antisera. These studies suggest that the product(s) encoded by early region 1A differentially control the expression of the DNA binding protein. DBP produced from the early promoter is stimulated by addition of the E1A region. By contrast E1A gene product(s) inhibit the synthesis of the DBP species transcribed from the late promoter. It has been shown previously by a variety of studies that E1A regulates E1B expression. However, experiments in which E1B DNA was microinjected together with E1A and E2A suggest that the DNA binding protein may have a stimulatory effect on the synthesis of E1B products.
Authors:
M Rossini
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Virology     Volume:  131     ISSN:  0042-6822     ISO Abbreviation:  Virology     Publication Date:  1983 Nov 
Date Detail:
Created Date:  1984-01-27     Completed Date:  1984-01-27     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0110674     Medline TA:  Virology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  49-58     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adenoviruses, Human / genetics*
Animals
Base Sequence
Cell Transformation, Viral*
Cloning, Molecular
Cricetinae
DNA Restriction Enzymes
DNA, Viral / genetics
DNA-Binding Proteins / genetics
Fibroblasts / enzymology
Fluorescent Antibody Technique
Genes, Viral*
Kinetics
Plasmids
Thymidine Kinase / deficiency
Transcription, Genetic
Chemical
Reg. No./Substance:
0/DNA, Viral; 0/DNA-Binding Proteins; EC 2.7.1.21/Thymidine Kinase; EC 3.1.21.-/DNA Restriction Enzymes

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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