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Related Experiment Videos

The mouse hepatocyte growth factor-encoding gene: structural organization and evolutionary conservation

Y Liu1, A W Bell, G K Michalopoulos

  • 1Department of Pathology, School of Medicine, University of Pittsburgh, PA 15261.

Gene
|July 8, 1994
PubMed
Summary

Researchers characterized the mouse hepatocyte growth factor (HGF) gene, revealing its structure and evolutionary conservation. This detailed information aids future gene targeting studies for HGF.

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Area of Science:

  • Genomics
  • Molecular Biology
  • Evolutionary Biology

Background:

  • Hepatocyte growth factor (HGF) is a crucial protein involved in cell physiology.
  • Understanding the HGF gene structure is essential for further research and manipulation.

Purpose of the Study:

  • To isolate and characterize the complete mouse hepatocyte growth factor (HGF) gene.
  • To investigate the exon-intron structure and evolutionary conservation of the HGF gene.

Main Methods:

  • Screening of a mouse genomic phage library using a mouse HGF cDNA probe.
  • Isolation and characterization of genomic clones via restriction mapping, Southern hybridization, and DNA sequencing.
  • Comparative Southern hybridization of genomic DNA from various vertebrate species.

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Main Results:

  • The mouse HGF gene spans approximately 65 kb and comprises 18 exons and 17 introns.
  • The exon-intron organization is highly homologous to other kringle-containing proteins, suggesting evolutionary origins through gene duplication or exon shuffling.
  • Significant homology of the HGF gene was observed across various vertebrates, indicating strong evolutionary conservation.

Conclusions:

  • The detailed structural information of the mouse HGF gene provides a foundation for future studies, including gene targeting.
  • The evolutionary conservation of HGF suggests a vital role in normal cellular functions across vertebrates.