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Updated: Apr 17, 2026

Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing
Published on: February 10, 2023
Genetic variations in NADPH-CYP450 oxidoreductase in a Czech Slavic cohort
Mária Tomková1, Satya Prakash Panda, Ondřej Šeda
1Department of Pediatrics, First Faculty of Medicine, Charles University, 128 08 Prague, Czech Republic.
Aim:
Estimating polymorphic allele frequencies of the NADPH-CYP450 oxidoreductase (POR) gene in a Czech Slavic population.
Methods:
The POR gene was analyzed in 322 individuals from a control cohort by sequencing and high resolution melting analysis.
Results:
We identified seven unreported SNP genetic variations, including two SNPs in the 5' flanking region (g.4965C>T and g.4994G>T), one intronic variant (c.1899-20C>T), one synonymous SNP (p.20Ala=) and three nonsynonymous SNPs (p.Thr29Ser, p.Pro384Leu and p.Thr529Met). The p.Pro384Leu variant exhibited reduced enzymatic activities compared with wild-type.
Conclusion:
New POR variant identification indicates the number of uncommon variants might be specific for each subpopulation being investigated, particularly germane to the singular role that POR plays in providing reducing equivalents to all CYP450s in the endoplasmic reticulum. Original submitted 15 September 2014; Revision submitted 17 November 2014.
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