geo-database

Search and download GEO gene expression datasets programmatically using E-utilities and GEOparse to query GSE, GSM, and GPL records, then retrieve series matrices, SOFT, or MiNiML files for downstream analysis.

Parse GEO series matrix files using GEOparse to extract expression matrices and metadata, map probes to genes via platform annotations, and aggregate multiple GSE studies to build harmonized datasets for cross-study meta-analysis.

Link GEO datasets to PubMed records and platform annotations by extracting metadata during parsing, enabling researchers to connect expression data to publication context and map probe identifiers to gene symbols.

GEOparse supports downloading and parsing supplementary data alongside MiNiML and SOFT files from GEO, providing programmatic access to retrieve complete dataset packages including platform annotation files for probe-to-gene mapping.

Combine multiple GSE studies by querying GEO for relevant datasets, downloading series matrices with GEOparse, harmonizing metadata, and aggregating expression values across studies to compare a gene of interest across different experimental conditions.

Using FTP and E-utilities for GEO data retrieval requires handling rate limits, connection stability, and large file downloads, with series matrices and SOFT files potentially requiring significant memory when parsing high-throughput expression datasets.