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The neurofibromatosis 2 (NF2) tumor suppressor gene encodes multiple alternatively spliced transcripts
M J Pykett1, M Murphy, P R Harnish
1Department of Genetics, University of Pennsylvania School of Medicine, Philadelphia 19104-6145.
Human Molecular Genetics
|April 1, 1994
Summary
Researchers identified alternative splice variants of the Neurofibromatosis type 2 (NF2) gene in brain tumors. These variants, found in leptomeningeal cells, alter the NF2 gene
Area of Science:
- Molecular Biology
- Genetics
- Oncology
Background:
- Neurofibromatosis type 2 (NF2) is an inherited disorder leading to central nervous system tumors, such as meningiomas.
- A candidate tumor suppressor gene, NF2, has been identified, with its protein product potentially linking membrane proteins to the cytoskeleton.
Purpose of the Study:
- To investigate alternative splicing of the NF2 gene.
- To identify and characterize novel NF2 splice variants in relevant tissues and cell lines.
Main Methods:
- Reverse transcription-polymerase chain reaction (RT-PCR) was employed to analyze RNA.
- RNA was isolated from primary leptomeningeal tissue and a leptomeningeal cell line (LMC).
Main Results:
- Multiple alternatively spliced transcription products of the NF2 gene were identified.
- Several variants resulted in the deletion of known coding regions.
- Two novel splice variants incorporated previously unrecognized exons into the NF2 coding sequence.
Conclusions:
- The identified NF2 splice variants provide tools for functional analysis of the NF2 protein.
- These variants are important considerations for future studies on NF2 mutations in families and tumors.