In Silico Prediction of Functional SNPs Interrupting Antioxidant Defense Genes in Relation to COVID-19 Progression
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View abstract on PubMed
Summary
This summary is machine-generated.Genetic variations in antioxidant defense genes significantly impact COVID-19 susceptibility and progression. These single nucleotide polymorphisms (SNPs) affect gene function and drug response, explaining individual differences in disease severity and treatment outcomes.
Area Of Science
- Genetics and Molecular Biology
- Computational Biology
- Immunology
Background
- The imbalance between reactive oxygen species and antioxidant defenses is crucial in disease development.
- Individual genetic variations contribute to disparities in disease susceptibility, including infections like COVID-19.
Purpose Of The Study
- To computationally predict the impact of single nucleotide polymorphisms (SNPs) in antioxidant defense genes on their structure, function, and expression concerning COVID-19.
- To investigate how SNPs affect miRNA binding sites and influence drug responses and COVID-19 susceptibility.
Main Methods
- In silico analysis of SNPs in key antioxidant genes (GPX7, GPX8, TXNRD2, GLRX5, GLRX, GPX, PRDX, GLRX, TXN, SOD).
- Prediction of SNP effects on protein structure, function, and miRNA binding sites using computational tools.
- Comparison of gene expression profiles in mild vs. severe COVID-19 patients using GEO2R.
Main Results
- Six missense SNPs (MAF ≥ 0.1) were predicted to significantly alter the structure and function of antioxidant genes.
- 39 SNPs (MAF ≥ 0.1) were found to create or abolish miRNA binding sites in antioxidant genes.
- Expression analysis revealed significant changes in ~250 miRNAs between mild and severe COVID-19 cases, with 21 showing altered binding efficiency due to SNPs.
Conclusions
- SNPs in antioxidant defense genes play a fundamental role in COVID-19 progression and individual susceptibility.
- Observed variations in patient responses to antioxidant-enhancing drugs for COVID-19 may be attributed to the presence of these genetic variations.
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A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
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