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The mouse apolipoprotein C1 gene: structure and expression

M J Hoffer1, M M van Eck, L M Havekes

  • 1MGC-Department of Human Genetics, Leiden University, The Netherlands.

Genomics
|October 1, 1993
PubMed
Summary
This summary is machine-generated.

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Researchers isolated and characterized the mouse apolipoprotein C1 (Apoc1) gene, revealing its structure and expression. This work facilitates using mouse models to study Apoc1

Area of Science:

  • Genetics and Molecular Biology
  • Biochemistry
  • Genomics

Background:

  • The apolipoprotein C1 (Apoc1) gene's role in lipoprotein metabolism is not fully understood.
  • Mouse models are crucial for studying human diseases, but require well-characterized genetic components.

Purpose of the Study:

  • To isolate and characterize the mouse apolipoprotein C1 (Apoc1) gene.
  • To provide a foundation for using mouse models to investigate Apoc1 function in lipoprotein metabolism.

Main Methods:

  • Isolation and characterization of cDNA and genomic clones for the mouse Apoc1 gene.
  • Sequence homology analysis between mouse and human/primate genes.
  • Northern blotting and primer extension analysis to determine gene expression patterns.
  • Deduction of amino acid sequence from cDNA and comparison with other species.

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Main Results:

  • The mouse Apoc1 gene was isolated and found to span approximately 3.3 kb with four exons.
  • Exon-intron structure is conserved with human/baboon genes, though mouse introns 2 and 3 are smaller.
  • Significant sequence homology (80% promoter, 67% exonic) exists between mouse and human genes.
  • A major 409 bp transcript is expressed primarily in fetal and adult mouse liver.
  • The mouse Apoc1 protein (apoC1) consists of 88 amino acids, including a signal peptide.
  • High conservation of discrete regions was observed in the deduced amino acid sequence across multiple species.

Conclusions:

  • The sequence and structural organization of the mouse Apoc1 gene have been delineated.
  • This characterization is essential for advancing the use of mouse models in studying Apoc1's role in lipoprotein metabolism.