MinION Coverage sensitivity analysis
Contents
Conversion of base-called fast5 to fasta
This is done with poretools, and can be performed. Filters may be
Subtract Operations
In the spirit of discovering new sequences, this ivolves subtract what is currently annotated from our alignment dataset.
This is a highly untargeted approach because all currently annotated genes and interestung areas are subtracted so that the coverage can only describe currently unknown areas of the genome, including non-coding areas.
Though this might sound unfruitful to start with, it has some benefits:
- useful to gain a feeling of general coverage
- reduces reliance on currently known areas, which may have been chosen becaus eof high coverage from previous studies.
Intersect Operations
Obtaining the sequence behind a range
As the bed file only holds chromosome names and ranges, there is no sequence information. This is obtain with the bedtools getfasta tool. This however needs a fasta file, so the correct fasta must be obtained from the bam file, because the reference sequence could be used or sequences from the reads.