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Structure, mapping and expression of a growth factor inducible gene encoding a putative nuclear hormonal binding
R P Ryseck1, H Macdonald-Bravo, M G Mattéi
1European Molecular Biology Laboratory, Heidelberg, FRG.
The EMBO Journal
|November 1, 1989
Summary
Researchers identified a new gene, N10, which encodes a nuclear protein rapidly induced by growth factors. This protein, transiently expressed in cells, suggests N10 may represent a novel nuclear receptor family.
Area of Science:
- Molecular Biology
- Genetics
- Cell Biology
Background:
- Nuclear receptors are crucial regulators of gene expression.
- Understanding novel nuclear receptor genes provides insights into cellular signaling pathways.
Purpose of the Study:
- To characterize the growth factor-inducible gene N10.
- To determine the properties and potential classification of the N10 protein and gene.
Main Methods:
- Gene expression analysis via mitogen stimulation.
- Protein characterization using immunoprecipitation.
- Gene structure analysis (exon-intron distribution).
- Sequence similarity comparison to known receptor families.
Main Results:
- N10 encodes a 601 amino acid nuclear protein with similarity to steroid/thyroid hormone receptors.
- N10 gene is rapidly and transiently induced by mitogens.
- N10 protein exhibits transient expression with a half-life of ~30 minutes.
- N10 gene structure suggests it may belong to a new nuclear receptor family.
- A DSE in the 5' flanking region may mediate rapid response.
Conclusions:
- N10 represents a novel gene encoding a nuclear protein.
- Its rapid induction and unique structure suggest a new subfamily within the nuclear receptor superfamily.
- N10 plays a role in cellular response to external stimuli.