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How do I download SRA data?
Download sequence data from the Run Browser
- Open the selected run in the Run Browser .
- Click the Reads tab.
- Find certain reads by applying a Filter or leave the Filter field empty.
- Click on the Filtered Download button.
- Select available download format and click Download link.
What is Fastq-dump?
fastq-dump mySRA.sra. The only thing I’d add is that if your data has more than one read per sample (ie paired end), then this will produce a single file with the two reads concatenated together. If you want separate files for the different reads you’ll need to run: fastq-dump –split-files mySRA.sra.
What is SRA experiment?
Each SRA Experiment is a unique sequencing library for a specific sample. SRA Runs are simply a manifest of data file(s) that should be linked to a given sequencing library – no information present in the Run is displayed on the public record of your project.
How do I download a Fastq file?
Click the desired sample in the Samples pane. In the Files pane, select the checkboxes for the desired FASTQ files. Click the Download Selected button. The BaseSpace Downloader guides you through the download process, and starts the download of the files to the desired location.
How long does Fasterq dump take?
A normal fasterq-dump only takes a few hours, but this one appears to be going on for nearly 3 hours.
Which is the best tool to download SRA files?
You can download SRA fastq files using the fasterq-dump tool, which will download the fastq file into your current working directory by default. (Note: the old fastq-dump is being deprecated).
Where can I download SRA files instead of FASTQ?
After reading Devon Ryan ‘s answer, I realize that you asked for SRA files instead of fastq. This can also be done with prefetch of the sratoolkit: Assuming you ultimately just want the fastq files and you know the SRR (run) numbers, I would download them from here: ftp://ftp.sra.ebi.ac.uk/vol1/fastq/
Can you use parallel fast dump on SRA files?
However, if you really really want to use the SRA files for some reason, note that you can use parallel-fastq-dump to make things faster. Do follow its advice regarding using prefetch. You’d need to combine that with the answer from b.nota (i.e., put the commands in a for loop).
Can you copy SRA files to local scratch?
If you have previously downloaded SRA data into your own directory, you can copy those files to local scratch on the node, process them there, then copy the output back to your /data area. Sample swarm command file: