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Isolation of novel heart-specific genes using the BodyMap database
H Soejima1, S Kawamoto, J Akai
1Department of Biochemistry, Saga Medical School, 5-1-1 Nabeshima, Saga, 849-8501, Japan. soejimah@post.saga-med.ac.jp
Genomics
|May 26, 2001
Summary
Researchers discovered two new heart-specific genes, C3orf3 and MMGL, using the BodyMap database. These genes are also found in skeletal muscle, offering new insights into cardiac and muscle gene expression.
Area of Science:
- Genomics
- Molecular Biology
- Cardiovascular Research
Background:
- Identifying novel tissue-specific genes is crucial for understanding organ function and disease.
- Existing gene expression databases can be leveraged for novel gene discovery.
Purpose of the Study:
- To isolate and characterize novel heart-specific genes.
- To evaluate the utility of the BodyMap database for gene discovery.
Main Methods:
- Utilized the BodyMap gene expression database, which employs site-directed 3' expressed sequence tags (3'-ESTs).
- Analyzed nonbiased cDNA libraries from various tissues to identify novel genes.
- Determined gene structure, alternative splicing, chromosomal mapping, and subcellular localization.
Main Results:
- Successfully isolated two novel heart-specific genes: C3orf3 (chromosome 3 open reading frame 3) and MMGL (myomegalin-like).
- Both C3orf3 and MMGL showed strong expression in heart and skeletal muscle tissues.
- C3orf3 and MMGL were mapped to chromosomal locations 3p22 and 1q1, respectively.
- Putative proteins localized to the cytoplasm (C3orf3) and cytoplasm/nucleus (MMGL).
Conclusions:
- The BodyMap database is an effective tool for isolating tissue-specific genes.
- C3orf3 and MMGL represent new targets for research in cardiac and skeletal muscle biology.