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Cloning of the gene coding for human L apoferritin
Nucleic Acids Research
|April 11, 1986
Summary
Human L apoferritin gene expression was investigated. Data suggest a single gene is primarily expressed across tissues, with variations potentially arising from alternative transcription, not different genes.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- Differences were observed between human promyelocytic and liver L apoferritin cDNA clones.
- The study aimed to determine if these differences stem from distinct genes or alternative transcription of a single gene.
Purpose of the Study:
- To investigate the genetic basis of human L apoferritin expression.
- To clarify whether multiple L apoferritin genes exist or if alternative transcription occurs.
Main Methods:
- Cloning and characterization of the human L apoferritin gene.
- Sequence analysis of the gene, including introns and exons.
- Analysis of related pseudogenes.
Main Results:
- Evidence suggests a single L apoferritin gene is predominantly expressed in various human tissues.
- The characterized gene's exon sequence matches the human liver cDNA clone.
- Three introns were identified within the main gene sequence.
- At least five related pseudogenes were analyzed, including one processed pseudogene with an intron-like fragment.
Conclusions:
- The observed differences in L apoferritin cDNA are likely due to alternative transcription of a single gene, rather than expression of multiple genes.
- The primary human L apoferritin gene has been identified and characterized.
- The existence of pseudogenes adds complexity to the L apoferritin gene family.