python nudup.py -h for latest usage.
usage: nudup.py [-2] [-f INDEX.fq|READ.fq] [-o OUT_PREFIX] [-s START] [-l LENGTH] [-v] [-h] IN.sam|IN.bam Marks/removes PCR introduced duplicate molecules based on the molecular tagging technology used in NuGEN products. For SINGLE END reads, duplicates are marked if they fulfill the following criteria: a) start at the same genomic coordinate b) have the same strand orientation c) have the same molecular tag sequence. The read with the highest mapping quality is kept as the non-duplicate read. For PAIRED END reads, duplicates are marked if they fulfill the following criteria: a) start at the same genomic coordinate b) have the same template length c) have the same molecular tag sequence. The read pair with the highest mapping quality is kept as the non-duplicate read. Here are the two cases for running this tool: - CASE 1 (Standard): User supplies two input files, 1) SAM/BAM file that a) ends with .sam or .bam extension b) contains unique alignments only 2) FASTQ file (ie: the Index FASTQ) that contains the molecular tag sequence for each read name in the corresponding SAM/BAM file as either a) the read sequence or b) in the FASTQ entry header name. If the index FASTQ read length is 6, 8, 12, 14, or 16nt long as expected for NuGEN products, the molecular tag sequence to be extracted from the read according to -s and -l parameters, otherwise the molecular tag will be extracted from the header of the FASTQ entry. - CASE 2 (Runtime Optimized): User supplies only one input file, 1) SAM/BAM file that a) ends with .sam or .bam extension b) contains unique alignments only c) is sorted d) has a fixed length sequence containing the molecular tag appended to each read name. Author: Anand Patel Contact: NuGEN Technologies Inc., firstname.lastname@example.org Input: IN.sam|IN.bam input sorted/unsorted SAM/BAM containing only unique alignments (sorted required for case 2 detailed above) Options: -2, --paired-end use paired end deduping with template. SAM/BAM alignment must contain paired end reads. Degenerate read pairs (alignments for one read of pair) will be discarded. -f INDEX.fq|READ.fq FASTQ file containing the molecular tag sequence for each read name in the corresponding SAM/BAM file (required only for CASE 1 detailed above) -o OUT_PREFIX, --out OUT_PREFIX prefix of output file paths for sorted BAMs (default will create prefix.sorted.markdup.bam, prefix.sorted.dedup.bam, prefix_dup_log.txt) -s START, --start START position in index read where molecular tag sequence begins. This should be a 1-based value that counts in from the 3' END of the read. (default = 6) -l LENGTH, --length LENGTH length of molecular tag sequence (default = 6) -T TEMP_DIR directory for reading and writing to temporary files and named pipes (default: /tmp) --old-samtools required for compatibility with samtools sort style in samtools versions <=0.1.19 --rmdup-only required for only outputting duplicates removed file -v, --version show program's version number and exit -h, --help show this help message and exit
For questions, contact NuGEN Technologies Technical Support email@example.com