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Published on: August 21, 2018
Role of thymine in protein coding frames of mRNA sequences
Perumal Anandagopu1, Sivakumar Suhanya, Veerasamy Jayaraj
1Department of Biotechnology, Periyar Maniammai University, Thanjavur, Tamil Nadu-613403, India.
Bioinformation
|May 15, 2008
Summary
Thymine distribution in protein-coding messenger RNA (mRNA) sequences is not random. Different reading frames show distinct thymine preferences, with implications for gene expression in various organisms.
Area of Science:
- Molecular Biology
- Bioinformatics
- Genetics
Background:
- Messenger RNA (mRNA) sequences contain genetic information crucial for protein synthesis.
- The distribution of nucleotides, such as thymine, within mRNA can influence gene expression and regulation.
- Understanding nucleotide distribution patterns is essential for deciphering the complexities of the genetic code.
Purpose of the Study:
- To investigate the distribution patterns of thymine within protein-coding mRNA sequences.
- To determine if thymine distribution is random or follows specific probabilistic rules.
- To compare thymine distribution across different reading frames and among various organisms.
Main Methods:
- Analysis of thymine content in protein-coding mRNA sequences.
- Examination of thymine distribution across six possible reading frames (1-6).
- Comparative analysis of thymine distribution profiles in humans, yeast, and plants.
Main Results:
- Thymine distribution in protein-coding mRNA is non-random and follows probabilistic patterns.
- Reading Frame 1 shows a preference for a specific amount of thymine; Frame 3 has the least.
- Frame 4 is also implicated in protein coding, while Frames 2 and 6 exhibit variable thymine content.
- Heterosexual animals, notably humans, display a distinct thymine distribution (less in Frame 1) compared to yeast and plants.
Conclusions:
- The non-random distribution of thymine in mRNA reading frames suggests functional significance.
- Specific reading frames have evolved distinct preferences for thymine content, impacting protein coding.
- Evolutionary divergence is evident in thymine distribution patterns between humans and other organisms like yeast and plants.
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