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Isolation and characterisation of a cDNA encoding the precursor for human apolipoprotein AII
Biochemical and Biophysical Research Communications
|May 16, 1984
Summary
Researchers isolated cDNA clones for human apolipoprotein AII (Apo AII) from adult liver. The study details the Apo AII mRNA, its precursor protein structure, and untranslated regions, providing insights into Apo AII gene expression.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- Apolipoprotein AII (Apo AII) plays a role in lipid metabolism.
- Understanding the genetic basis of Apo AII is crucial for lipid research.
Purpose of the Study:
- To isolate and characterize cDNA clones encoding human apolipoprotein AII.
- To determine the structure of Apo AII mRNA and its precursor protein.
Main Methods:
- cDNA library screening (adult liver).
- RNA blot hybridization for mRNA length determination.
- cDNA sequencing to infer protein structure.
Main Results:
- Isolated cDNA clones for human Apo AII.
- Apo AII mRNA is approximately 600 bases long.
- The intracellular precursor is a 100 amino acid polypeptide with a signal peptide and propeptide.
Conclusions:
- The study provides a detailed molecular characterization of human Apo AII.
- The findings contribute to understanding Apo AII synthesis and regulation.