Format

Send to:

Choose Destination
See comment in PubMed Commons below
Genes Dev. 1992 Mar;6(3):466-80.

A Drosophila CREB/ATF transcriptional activator binds to both fat body- and liver-specific regulatory elements.

Author information

  • 1Department of Biochemistry and Molecular Biology, Harvard University, Cambridge, Massachusetts 02138.

Erratum in

  • Genes Dev 1993 Apr;7(4):719.

Abstract

We have identified a Drosophila transcription factor that binds to fat body-specific enhancers of alcohol dehydrogenase (Adh) and yolk protein genes. DNA sequence analysis of cDNA clones encoding this protein, box B-binding factor-2 (BBF-2), indicates that it is a member of the CREB/ATF family of transcriptional regulatory proteins. A number of observations suggest that BBF-2 is involved in fat body-specific expression: Mutations that disrupt BBF-2 binding to two different Adh fat body enhancers in vitro decrease the activity of these enhancers in transgenic flies. BBF-2 mRNA is present in all cell types examined, and the protein is present in cells that express ADH. Finally, BBF-2 is a transcriptional activator in Drosophila tissue culture cells. Remarkably, BBF-2 also binds specifically to regulatory elements required for liver-specific expression of the human Adh and rat tyrosine aminotransferase genes. Thus, BBF-2 and the DNA sequence to which it binds may be important components of a tissue-specific regulatory mechanism conserved between Drosophila and man.

PMID:
1532159
[PubMed - indexed for MEDLINE]
Free full text

LinkOut - more resources

Full Text Sources

Other Literature Sources

Molecular Biology Databases

PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Write to the Help Desk