Abstract
Background: Breast cancer (BC) has been linked to a variety of nuclear DNA changes as well as mitochondrial DNA (mtDNA) alterations. The study aims to evaluate/analyze the association of mitochondrial transfer RNA (mt-tRNA) leucine 2 gene with BC patients. Methods: In the current study, 24 samples have been collected from various families in Peshawar. DNA was extracted from blood. Polymerase chain reaction was used to amplify the mt-tRNA MT-TL2 gene, and 20 samples were sequenced. Results: The sequence was compared with accession #NC-012920.1 of the Revised Cambridge Reference Sequence (rCRS). The results (chromatograph, nucleotide sequence, and rCRS alignment) show mutations in mt-tRNA MT-TL2 gene in our participants is not the cause of BC. Conclusion: Yet, a significant number of BC patients must be studied, and their full mtDNA must be analyzed. This will provide an indication of the potential DNA marker that might be used to prevent BC deaths at the earliest stages.
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