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Quaternary structural diversity in eukaryotic DNA polymerases: monomeric to multimeric form
Narottam Acharya1, Prashant Khandagale2, Shweta Thakur2
1Laboratory of Genomic Instability and Diseases, Department of Infectious Disease Biology, Institute of Life Sciences, Bhubaneswar, 751023, India. narottam_acharya@ils.res.in.
This review classifies eukaryotic DNA polymerases by structure, not just sequence. It details their historical discovery, unique mechanisms, and cellular roles, focusing on monomeric and multimeric forms.
Area of Science:
- Molecular Biology
- Biochemistry
- Genetics
Background:
- Sixteen eukaryotic DNA polymerases are known, classified into families A, B, X, Y, and AEP (PrimPol).
- DNA polymerases exhibit diverse quaternary structures, being either monomeric or multimeric.
Purpose of the Study:
- To classify eukaryotic DNA polymerases based on quaternary structure (monomeric vs. multimeric).
- To highlight the functional importance of accessory subunits in DNA polymerases.
- To provide a historical overview and summarize recent advances in DNA polymerase research.
Main Methods:
- Classification of DNA polymerases based on quaternary structure.
- Review of historical discoveries and recent advances in cellular functions.
- Analysis of unique catalytic mechanisms.
Main Results:
- DNA polymerases grouped into monomeric and multimeric categories based on structure.
- Functional significance of accessory subunits elucidated.
- Historical context and recent cellular functions of DNA polymerases summarized.
Conclusions:
- Quaternary structure provides a valuable classification system for DNA polymerases.
- Accessory subunits play crucial roles in DNA polymerase function.
- Understanding DNA polymerase diversity is key to comprehending cellular processes.
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