It is expected that this single nucleotide deletion does not affect the functioning of the protein since this modification didn't alter gene splicing. Cancer cells may have high metabolic activity.
Cancer cells exhibit more plastic phenotypes than normal cells, thereby mutations of genes associated with metabolism in cancer cells may lead to a selective advantage to generate ATP and thus increase their metabolic rate.
In consequence, it is expected that stomach cancer cells can perform fermentation at a faster rate than normal cells because they may exhibit high metabolic activity.
Finally, the NADH/NAD+ ratio will be decreased in cells treated with a compound that blocks the electron transport chain because NAD+ is reduced to NADH during this step of cellular respiration.
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