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Base calling

From Wikipedia, the free encyclopedia

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Base calling is the process of assigning nucleobases to chromatogram peaks, light intensity signals, or electrical current changes resulting from nucleotides passing through a nanopore. One computer program for accomplishing this job is Phred, which is a widely used base calling software program by both academic and commercial DNA sequencing laboratories because of its high base calling accuracy.[1]

Base callers for Nanopore sequencing use neural networks trained on current signals obtained from accurate sequencing data. [2]

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Base calling accuracy

Base calling can be assessed by two metrics, read accuracy and consensus accuracy. Read accuracy refers to the called base's accuracy to a known reference. Consensus accuracy refers to how accurate a consensus sequence is compared to overlapping reads from the same genetic locus. [2]

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