Related Experiment Videos
The mouse chondroadherin gene: characterization and chromosomal localization
C Landgren1, D R Beier, R Fässler
1Department of Cell and Molecular Biology, Lund University, Sweden. Christina.Landgren@medkem.lu.se
Genomics
|February 18, 1998
Summary
Researchers isolated the mouse chondroadherin gene, revealing its unique exon-intron structure and promoter region. This finding suggests chondroadherin evolved differently from other leucine-rich repeat proteins.
Area of Science:
- Genomics
- Molecular Biology
- Evolutionary Biology
Background:
- Chondroadherin is an extracellular matrix protein.
- Understanding its gene structure provides insights into its function and evolution.
Purpose of the Study:
- To isolate and characterize the mouse chondroadherin gene.
- To determine its genomic organization, promoter region, and chromosomal location.
Main Methods:
- Cosmid genomic library screening using a rat cDNA probe.
- Southern blot analysis of mouse genomic DNA.
- Sequencing of the gene and promoter region.
- Linkage analysis for gene mapping.
Main Results:
- The mouse chondroadherin gene is a single-copy gene.
- It spans 4.1 kb and comprises four exons separated by three introns.
- A putative promoter region with a TATAA-box was identified.
- The gene was mapped to mouse chromosome 11.
Conclusions:
- The exon/intron organization of the chondroadherin gene is distinct from other extracellular matrix leucine-rich repeat (LRR) family genes.
- Chondroadherin appears to have evolved via a unique pathway.
- Gene mapping provides a basis for further functional studies.