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Cloning and characterization of the gene encoding mouse osteoclast differentiation factor
K Kodaira1, K Kodaira, A Mizuno
1YS New Technology Institute, 519 Ishibashi-machi, Shimotsuga-gun, Tochigi 329-0512, Japan. kunihiko.kodaira@nifty.ne.jp
Gene
|April 10, 1999
Summary
Researchers characterized the mouse osteoclast differentiation factor (ODF) gene, identifying its five-exon structure and approximately 40kb genomic span. This gene organization is similar to other tumor necrosis factor (TNF) family members.
Area of Science:
- Genomics
- Molecular Biology
- Cell Biology
Background:
- Osteoclast differentiation factor (ODF) is a key regulator of bone resorption.
- ODF belongs to the tumor necrosis factor (TNF) superfamily and binds to osteoclastogenesis inhibitory factor (OCIF)/osteoprotegerin (OPG).
- Understanding ODF's gene structure is crucial for elucidating its role in osteoclast formation.
Purpose of the Study:
- To isolate and sequence mouse ODF genomic clones.
- To determine the gene structure of mouse ODF.
- To compare the genomic organization of ODF with other TNF family members.
Main Methods:
- Isolation and sequencing of mouse ODF genomic clones.
- Bioinformatic analysis of the ODF gene sequence.
- Comparative genomic analysis.
Main Results:
- The mouse ODF gene is a single-copy gene spanning approximately 40kb.
- The gene comprises five exons, with specific exons encoding intracellular, transmembrane, and extracellular domains.
- A transcription-initiation site was identified 143 nucleotides upstream of the start codon.
- The genomic organization of ODF is similar to CD40 ligand and other TNF family members.
Conclusions:
- The mouse ODF gene structure is defined, comprising five exons and spanning 40kb.
- The identified genomic organization provides insights into ODF gene regulation and evolution.
- ODF's structural similarity to other TNF family members suggests conserved functional mechanisms.