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Therefore, the total number of reads generated in a single experiment is typically normalized by converting counts to fragments, reads, or counts per million mapped reads (FPM, RPM, or CPM). The difference between RPM and FPM was historically derived during the evolution from single-end sequencing of fragments to paired-end sequencing.
REEP5 is expressed across a number of tissues at a relatively high level, with at least 20 Reads Per Kilobase of transcript, per Million mapped reads appearing in adrenal, fat, gall bladder, heart, kidney, prostate, lung, and urinary bladder tissues. [14] Expression is even more highly elevated in brain and thyroid tissues. [14]
Additionally, the gene is expressed in 23 other tissues at levels lower than 0.1 RPKM (Reads Per Kilobase of transcript per Million mapped reads) in humans. Other studies have also found that tissue-specific circular RNA induction of LOC101928193 during human fetal development has the highest levels in the heart, kidney, and stomach at 10 weeks ...
Sequencing technologies vary in the length of reads produced. Reads of length 20-40 base pairs (bp) are referred to as ultra-short. [2] Typical sequencers produce read lengths in the range of 100-500 bp. [3] However, Pacific Biosciences platforms produce read lengths of approximately 1500 bp. [4] Read length is a factor which can affect the results of biological studies. [5]
While single-read accuracy is 87%, consensus accuracy has been demonstrated at 99.999% with multi-kilobase read lengths. [ 37 ] [ 38 ] In 2015, Pacific Biosciences released a new sequencing instrument called the Sequel System, which increases capacity approximately 6.5-fold.
SRD5A1 gene expression in human tissues, sorted by fragments per kilobase of exon model per million reads mapped (FPKM). [18] The FPKM data is taken from a 2014 study. [19] In humans, the protein isozyme encoded by the SRD5A1 gene is expressed in esophagus, liver, skin and 24 other tissues. [20] [19]
Sequence coverage (or depth) is the number of unique reads that include a given nucleotide in the reconstructed sequence. [1] [2] Deep sequencing refers to the general concept of aiming for high number of unique reads of each region of a sequence. [3] Physical coverage, the cumulative length of reads or read pairs expressed as a multiple of ...
The adrenal gland, hormone producer, was transcribed at 8 reads per kilobase per million (RPKM). The lungs transcription is relatively low transcription except in a 17-week-old fetus. The transcription of the 17-week-old fetus lung is above 2 RPKM.