Open Close
Reference
Citation
Engstrom, Y., Kadalayil, L., Sun, S.C., Samakovlis, C., Hultmark, D., Faye, I. (1993). B-like motifs regulate the induction of immune genes in Drosophila.  J. Mol. Biol. 232(2): 327--333.
FlyBase ID
FBrf0058952
Publication Type
Research paper
Abstract

The mammalian transcription factor NF-kappa B regulates a number of genes involved in immune and acute phase responses, by interacting with a nucleotide sequence element, the kappa B-motif. In this work we demonstrate the participation of similar motifs in the immune response of insects as well: kappa B-like motifs have a regulatory role in the synthesis of cecropins, a set of anti-bacterial peptides, triggered by the presence of bacterial cell wall components in the insect blood. We show that the upstream region of the Cecropin gene CecA1 contains elements responsible for inducible and tissue-specific expression. Furthermore, a trimer of kappa B-like motif confers high levels of inducible expression from the reporter gene, after transfection in a Drosophila blood cell line. As in the moth Hyalophora cecropia, stimulation with bacterial lipopolysaccharide induces a nuclear factor that specifically binds to the kappa B-like motif. Our data suggest a functional and evolutionary relationship between these insect immune response factors and the mammalian NF-kappa B.

PubMed ID
PubMed Central ID
Associated Information
Comments
Associated Files
Other Information
Secondary IDs
    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    J. Mol. Biol.
    Title
    Journal of Molecular Biology
    Publication Year
    1959-
    ISBN/ISSN
    0022-2836
    Data From Reference
    Alleles (4)
    Genes (4)
    Sequence Features (3)
    Cell Lines (1)
    Experimental Tools (1)
    Transgenic Constructs (2)