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MAGOH interacts with a novel RNA-binding protein
X F Zhao1, N J Nowak, T B Shows
1Department of Pediatrics, Roswell Park Cancer Institute, Buffalo, New York 14263, USA.
Genomics
|February 9, 2000
Summary
Researchers identified RBM8, a novel RNA-binding protein interacting with MAGOH. This gene is ubiquitously expressed and serum-inducible, suggesting its broad role in human cells.
Area of Science:
- Molecular Biology
- Genetics
- Developmental Biology
Background:
- MAGOH is the human homologue of Drosophila mago nashi, crucial for germ plasm development.
- Yeast two-hybrid screening is a powerful technique for identifying protein-protein interactions.
Purpose of the Study:
- To identify novel proteins interacting with human MAGOH.
- To characterize the identified interacting protein, RBM8, including its structure, expression, and regulation.
Main Methods:
- Yeast two-hybrid screening using human MAGOH as bait.
- In vitro translation assay to determine protein size.
- GST pull-down assays to confirm protein interaction.
- Northern blot or similar techniques to detect mRNA expression.
Main Results:
- Identified and cloned a novel gene, RBM8, encoding a 173-amino acid protein with an RNA-binding region.
- Confirmed the interaction between MAGOH and RBM8 using yeast two-hybrid and GST pull-down assays.
- Demonstrated ubiquitous expression of RBM8 across human tissues, with three mRNA species detected.
- Showed that RBM8 expression is serum-inducible in NIH3T3 fibroblast cells, similar to MAGOH.
Conclusions:
- RBM8 is a novel RNA-binding protein that interacts with MAGOH.
- RBM8 is ubiquitously expressed and regulated by serum, indicating a potential role in cellular processes.
- The MAGOH-RBM8 interaction may be important for cellular functions, potentially including development or response to stimuli.