A Python package for retrieving metadata from SRA/ENA/GEO
Documentation
https://saketkc.github.io/pysradb
CLI Usage
pysradb supports command line usage. See
CLI instructions or
quickstart
guide.
$ pysradb
usage: pysradb [-h] [--version] [--citation]
{metadata,download,search,gse-to-gsm,gse-to-srp,gsm-to-gse,gsm-to-srp,gsm-to-srr,gsm-to-srs,gsm-to-srx,srp-to-gse,srp-to-srr,srp-to-srs,srp-to-srx,srr-to-gsm,srr-to-srp,srr-to-srs,srr-to-srx,srs-to-gsm,srs-to-srx,srx-to-srp,srx-to-srr,srx-to-srs}
...
pysradb: Query NGS metadata and data from NCBI Sequence Read Archive.
version: 2.0.1
Citation: 10.12688/f1000research.18676.1
optional arguments:
-h, --help show this help message and exit
--version show program's version number and exit
--citation how to cite
subcommands:
{metadata,download,search,gse-to-gsm,gse-to-srp,gsm-to-gse,gsm-to-srp,gsm-to-srr,gsm-to-srs,gsm-to-srx,srp-to-gse,srp-to-srr,srp-to-srs,srp-to-srx,srr-to-gsm,srr-to-srp,srr-to-srs,srr-to-srx,srs-to-gsm,srs-to-srx,srx-to-srp,srx-to-srr,srx-to-srs}
metadata Fetch metadata for SRA project (SRPnnnn)
download Download SRA project (SRPnnnn)
search Search SRA for matching text
gse-to-gsm Get GSM for a GSE
gse-to-srp Get SRP for a GSE
gsm-to-gse Get GSE for a GSM
gsm-to-srp Get SRP for a GSM
gsm-to-srr Get SRR for a GSM
gsm-to-srs Get SRS for a GSM
gsm-to-srx Get SRX for a GSM
srp-to-gse Get GSE for a SRP
srp-to-srr Get SRR for a SRP
srp-to-srs Get SRS for a SRP
srp-to-srx Get SRX for a SRP
srr-to-gsm Get GSM for a SRR
srr-to-srp Get SRP for a SRR
srr-to-srs Get SRS for a SRR
srr-to-srx Get SRX for a SRR
srs-to-gsm Get GSM for a SRS
srs-to-srx Get SRX for a SRS
srx-to-srp Get SRP for a SRX
srx-to-srr Get SRR for a SRX
srx-to-srs Get SRS for a SRX
Quickstart
A Google Colaboratory version of most used commands are available in this Colab Notebook . Note that this requires only an active internet connection (no additional downloads are made).
The following notebooks document all the possible features of `pysradb`:
- Python API
- Downloading datasets from SRA - command line
- Parallely download multiple datasets - Python API
- Converting SRA-to-fastq - command line (requires conda)
- Downloading subsets of a project - Python API
- Download BAMs
- Metadata for multiple SRPs
- Multithreaded fastq downloads using Aspera Client
- Searching SRA/GEO/ENA
Installation
To install stable version using `pip`:
pip install pysradbAlternatively, if you use conda:
conda install -c bioconda pysradbThis step will install all the dependencies. If you have an existing
environment with a lot of pre-installed packages, conda might be
slow.
Please consider creating a new enviroment for pysradb:
conda create -c bioconda -n pysradb PYTHON=3.10 pysradbDependencies
pandas
requests
tqdm
xmltodict
Installing pysradb in development mode
git clone https://github.com/saketkc/pysradb.git
cd pysradb && pip install -r requirements.txt
pip install -e .
Using pysradb
Obtaining SRA metadata
$ pysradb metadata SRP000941 | head
study_accession experiment_accession experiment_title experiment_desc organism_taxid organism_name library_strategy library_source library_selection sample_accession sample_title instrument total_spots total_size run_accession run_total_spots run_total_bases
SRP000941 SRX056722 Reference Epigenome: ChIP-Seq Analysis of H3K27ac in hESC H1 Cells Reference Epigenome: ChIP-Seq Analysis of H3K27ac in hESC H1 Cells 9606 Homo sapiens ChIP-Seq GENOMIC ChIP SRS184466 Illumina HiSeq 2000 26900401 531654480 SRR179707 26900401 807012030
SRP000941 SRX027889 Reference Epigenome: ChIP-Seq Analysis of H2AK5ac in hESC Cells Reference Epigenome: ChIP-Seq Analysis of H2AK5ac in hESC Cells 9606 Homo sapiens ChIP-Seq GENOMIC ChIP SRS116481 Illumina Genome Analyzer II 37528590 779578968 SRR067978 37528590 1351029240
SRP000941 SRX027888 Reference Epigenome: ChIP-Seq Input from hESC H1 Cells Reference Epigenome: ChIP-Seq Input from hESC H1 Cells 9606 Homo sapiens ChIP-Seq GENOMIC RANDOM SRS116483 Illumina Genome Analyzer II 13603127 3232309537 SRR067977 13603127 489712572
SRP000941 SRX027887 Reference Epigenome: ChIP-Seq Input from hESC H1 Cells Reference Epigenome: ChIP-Seq Input from hESC H1 Cells 9606 Homo sapiens ChIP-Seq GENOMIC RANDOM SRS116562 Illumina Genome Analyzer II 22430523 506327844 SRR067976 22430523 807498828
SRP000941 SRX027886 Reference Epigenome: ChIP-Seq Input from hESC H1 Cells Reference Epigenome: ChIP-Seq Input from hESC H1 Cells 9606 Homo sapiens ChIP-Seq GENOMIC RANDOM SRS116560 Illumina Genome Analyzer II 15342951 301720436 SRR067975 15342951 552346236
SRP000941 SRX027885 Reference Epigenome: ChIP-Seq Input from hESC H1 Cells Reference Epigenome: ChIP-Seq Input from hESC H1 Cells 9606 Homo sapiens ChIP-Seq GENOMIC RANDOM SRS116482 Illumina Genome Analyzer II 39725232 851429082 SRR067974 39725232 1430108352
SRP000941 SRX027884 Reference Epigenome: ChIP-Seq Input from hESC H1 Cells Reference Epigenome: ChIP-Seq Input from hESC H1 Cells 9606 Homo sapiens ChIP-Seq GENOMIC RANDOM SRS116481 Illumina Genome Analyzer II 32633277 544478483 SRR067973 32633277 1174797972
SRP000941 SRX027883 Reference Epigenome: ChIP-Seq Input from hESC H1 Cells Reference Epigenome: ChIP-Seq Input from hESC H1 Cells 9606 Homo sapiens ChIP-Seq GENOMIC RANDOM SRS004118 Illumina Genome Analyzer II 22150965 3262293717 SRR067972 9357767 336879612
SRP000941 SRX027883 Reference Epigenome: ChIP-Seq Input from hESC H1 Cells Reference Epigenome: ChIP-Seq Input from hESC H1 Cells 9606 Homo sapiens ChIP-Seq GENOMIC RANDOM SRS004118 Illumina Genome Analyzer II 22150965 3262293717 SRR067971 12793198 460555128
Obtaining detailed SRA metadata
$ pysradb metadata SRP075720 --detailed | head
study_accession experiment_accession experiment_title experiment_desc organism_taxid organism_name library_strategy library_source library_selection sample_accession sample_title instrument total_spots total_size run_accession run_total_spots run_total_bases
SRP075720 SRX1800476 GSM2177569: Kcng4_2la_H9; Mus musculus; RNA-Seq GSM2177569: Kcng4_2la_H9; Mus musculus; RNA-Seq 10090 Mus musculus RNA-Seq TRANSCRIPTOMIC cDNA SRS1467643 Illumina HiSeq 2500 2547148 97658407 SRR3587912 2547148 127357400
SRP075720 SRX1800475 GSM2177568: Kcng4_2la_H8; Mus musculus; RNA-Seq GSM2177568: Kcng4_2la_H8; Mus musculus; RNA-Seq 10090 Mus musculus RNA-Seq TRANSCRIPTOMIC cDNA SRS1467642 Illumina HiSeq 2500 2676053 101904264 SRR3587911 2676053 133802650
SRP075720 SRX1800474 GSM2177567: Kcng4_2la_H7; Mus musculus; RNA-Seq GSM2177567: Kcng4_2la_H7; Mus musculus; RNA-Seq 10090 Mus musculus RNA-Seq TRANSCRIPTOMIC cDNA SRS1467641 Illumina HiSeq 2500 1603567 61729014 SRR3587910 1603567 80178350
SRP075720 SRX1800473 GSM2177566: Kcng4_2la_H6; Mus musculus; RNA-Seq GSM2177566: Kcng4_2la_H6; Mus musculus; RNA-Seq 10090 Mus musculus RNA-Seq TRANSCRIPTOMIC cDNA SRS1467640 Illumina HiSeq 2500 2498920 94977329 SRR3587909 2498920 124946000
SRP075720 SRX1800472 GSM2177565: Kcng4_2la_H5; Mus musculus; RNA-Seq GSM2177565: Kcng4_2la_H5; Mus musculus; RNA-Seq 10090 Mus musculus RNA-Seq TRANSCRIPTOMIC cDNA SRS1467639 Illumina HiSeq 2500 2226670 83473957 SRR3587908 2226670 111333500
SRP075720 SRX1800471 GSM2177564: Kcng4_2la_H4; Mus musculus; RNA-Seq GSM2177564: Kcng4_2la_H4; Mus musculus; RNA-Seq 10090 Mus musculus RNA-Seq TRANSCRIPTOMIC cDNA SRS1467638 Illumina HiSeq 2500 2269546 87486278 SRR3587907 2269546 113477300
SRP075720 SRX1800470 GSM2177563: Kcng4_2la_H3; Mus musculus; RNA-Seq GSM2177563: Kcng4_2la_H3; Mus musculus; RNA-Seq 10090 Mus musculus RNA-Seq TRANSCRIPTOMIC cDNA SRS1467636 Illumina HiSeq 2500 2333284 88669838 SRR3587906 2333284 116664200
SRP075720 SRX1800469 GSM2177562: Kcng4_2la_H2; Mus musculus; RNA-Seq GSM2177562: Kcng4_2la_H2; Mus musculus; RNA-Seq 10090 Mus musculus RNA-Seq TRANSCRIPTOMIC cDNA SRS1467637 Illumina HiSeq 2500 2071159 79689296 SRR3587905 2071159 103557950
SRP075720 SRX1800468 GSM2177561: Kcng4_2la_H1; Mus musculus; RNA-Seq GSM2177561: Kcng4_2la_H1; Mus musculus; RNA-Seq 10090 Mus musculus RNA-Seq TRANSCRIPTOMIC cDNA SRS1467635 Illumina HiSeq 2500 2321657 89307894 SRR3587904 2321657 116082850
Converting SRP to GSE
$ pysradb srp-to-gse SRP075720
study_accession study_alias
SRP075720 GSE81903
Converting GSM to SRP
$ pysradb gsm-to-srp GSM2177186
experiment_alias study_accession
GSM2177186 SRP075720
Converting GSM to GSE
$ pysradb gsm-to-gse GSM2177186
experiment_alias study_alias
GSM2177186 GSE81903
Converting GSM to SRX
$ pysradb gsm-to-srx GSM2177186
experiment_alias experiment_accession
GSM2177186 SRX1800089
Converting GSM to SRR
$ pysradb gsm-to-srr GSM2177186
experiment_alias run_accession
GSM2177186 SRR3587529
Downloading supplementary files from GEO
$ pysradb download -g GSE161707
Downloading an entire SRA/ENA project (multithreaded)
pysradb makes it super easy to download datasets from SRA parallely:
Using 8 threads to download:
$ pysradb download -y -t 8 --out-dir ./pysradb_downloads -p SRP063852
Downloads are organized by SRP/SRX/SRR mimicking the hierarchy of SRA
projects.
Downloading only certain samples of interest
$ pysradb metadata SRP000941 --detailed | grep 'study\|RNA-Seq' | pysradb download
This will download all RNA-seq samples coming from this project.
Ultrafast fastq downloads
With aspera-client installed, [pysradb]{.title-ref} can perform ultra fast downloads:
To download all original fastqs with [aspera-client]{.title-ref} installed utilizing 8 threads:
$ pysradb download -t 8 --use_ascp -p SRP002605
Refer to the notebook for (shallow) time benchmarks.
Publication
Presentation slides from BOSC (ISMB-ECCB) 2019: https://f1000research.com/slides/8-1183
Citation
Choudhary, Saket. "pysradb: A Python Package to Query next-Generation Sequencing Metadata and Data from NCBI Sequence Read Archive." F1000Research, vol. 8, F1000 (Faculty of 1000 Ltd), Apr. 2019, p. 532 (https://f1000research.com/articles/8-532/v1)
@article{Choudhary2019,
doi = {10.12688/f1000research.18676.1},
url = {https://doi.org/10.12688/f1000research.18676.1},
year = {2019},
month = apr,
publisher = {F1000 (Faculty of 1000 Ltd)},
volume = {8},
pages = {532},
author = {Saket Choudhary},
title = {pysradb: A {P}ython package to query next-generation sequencing metadata and data from {NCBI} {S}equence {R}ead {A}rchive},
journal = {F1000Research}
}
Zenodo archive: https://zenodo.org/badge/latestdoi/159590788
Zenodo DOI: 10.5281/zenodo.2306881
Questions?
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