Re: [galaxy-user] Bowtie: Outputting unmapped reads

2013-07-31 Thread Mayank Tandon
That's a neat trick, and I definitely wouldn't have thought of that approach, so thanks for that! After I finished writing this out, I realized it was super long. So here are the questions I'm asking up front, so you can choose whether or not to read the details. Thanks! 1. How do I output the

Re: [galaxy-user] Bowtie: Outputting unmapped reads

2013-07-31 Thread Peter Cock
On Wednesday, July 31, 2013, Mayank Tandon wrote: That's a neat trick, and I definitely wouldn't have thought of that approach, so thanks for that! After I finished writing this out, I realized it was super long. So here are the questions I'm asking up front, so you can choose whether or

Re: [galaxy-user] Bowtie: Outputting unmapped reads

2013-07-31 Thread Mayank Tandon
Exactly. Jennifer's solution for outputting unmapped reads involves splitting the FASTQ file into basically two FASTA files, one with sequences and the other with the corresponding quality score string. So, yes, they would be matched files. On Wed, Jul 31, 2013 at 4:42 PM, Peter Cock

[galaxy-user] Bowtie: Outputting unmapped reads

2013-07-18 Thread Mayank Tandon
I was hoping this question had been asked, but I haven't been able to find it. I want to output the unmapped reads from bowtie as a fastq file for subsequent mapping to other genomes (i.e. the --un filename option). I know I can extract the unmapped reads by filtering on the bitwise values in

Re: [galaxy-user] Bowtie: Outputting unmapped reads

2013-07-18 Thread Jennifer Jackson
Hi Mayank, The best option I know of is to do the following: 1 - obtain the sequence identifiers for the unmapped reads by filter the SAM file, then cutting them out 2 - convert the original FASTQ file to FASTA - you should get two output, one for the sequences and one for the quality score