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Published on: July 7, 2010
Isolation and characterisation of a chick cDNA encoding the RNA polymerase common subunit RPB6
M Kaarbo1, D I Crane, W G Murrell
1School of Biomolecular and Biomedical Science, Griffith University, Nathan, Queensland, Australia.
DNA Sequence : the Journal of DNA Sequencing and Mapping
|July 21, 2000
Summary
Researchers isolated the chicken RPB6 cDNA, crucial for RNA polymerases, and found it highly similar to human and hamster RPB6, suggesting conserved functions in heart development.
Area of Science:
- Molecular Biology
- Developmental Biology
- Genetics
Background:
- The RPB6 subunit is essential for all nuclear DNA-dependent RNA polymerases.
- Understanding RPB6's role is key to comprehending gene transcription and cellular development.
Purpose of the Study:
- To isolate and characterize the chicken RPB6 cDNA.
- To investigate the potential role of RPB6 in early heart development.
Main Methods:
- Screening of a chicken expression cDNA library using differential display.
- Nucleotide sequencing of the isolated cDNA.
- Homology analysis with known RPB6 sequences from other species.
Main Results:
- Isolation of the chicken RPB6 cDNA, encoding a 127-amino acid protein.
- High homology (98%) with human RNA polymerase II subunit 14.4 kDa (RPB6).
- Significant homology (97%) with rat RNA polymerase II subunit RPB6.
Conclusions:
- The chicken RPB6 protein is highly conserved across species.
- The identified RPB6 may play a conserved role in fundamental cellular processes, including heart development.
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