Database Commons
Database Commons

a catalog of worldwide biological databases

Database Profile

Gemma

General information

URL: https://gemma.msl.ubc.ca/
Full name: Tools and database for meta-analysis of functional genomics data
Description: Database of curated, reanalyzed gene expression datasets for differential expression, coexpression and meta-analysis. Contains over 8000 data sets (>400,000 samples), primarily from GEO. Most experiments are re-analyzed from raw data and batch-corrected.
Year founded: 2012
Last update: 2022-04-20
Version:
Accessibility:
Accessible
Country/Region: Canada

Classification & Tag

Data type:
RNA
Data object:
Database category:
Major species:
Keywords:

Contact information

University/Institution: University of British Columbia
Address: Department of Psychiatry and Michael Smith Laboratories, 2185 East Mall, University of British Columbia, Vancouver, British Columbia, V6T 1Z4 Canada,
City: Vancouver
Province/State: British Columbia
Country/Region: Canada
Contact name (PI/Team): Paul Pavlidis
Contact email (PI/Helpdesk): MSL-PAVLAB-SUPPORT@LISTS.UBC.CA

Publications

22782548
Gemma: a resource for the reuse, sharing and meta-analysis of expression profiling data. [PMID: 22782548]
Zoubarev A, Hamer KM, Keshav KD, McCarthy EL, Santos JR, Van Rossum T, McDonald C, Hall A, Wan X, Lim R, Gillis J, Pavlidis P.

Gemma is a database, analysis software system and web site for genomics data re-use and meta-analysis. Currently, Gemma contains analyzed data from over 3300 expression profiling studies, yielding hundreds of millions of differential expression results and coexpression patterns (correlated expression) for retrieval and visualization. With optional registration users can save their own data and securely share it with other users. Web services and integration with third-party resources further increase the scope of the tools, which include a Cytoscape plugin.
AVAILABILITY: http://chibi.ubc.ca/Gemma, Apache 2.0 license.

Bioinformatics. 2012:28(17) | 98 Citations (from Europe PMC, 2025-12-13)

Ranking

All databases:
1834/6895 (73.416%)
Gene genome and annotation:
579/2021 (71.4%)
Expression:
375/1347 (72.235%)
1834
Total Rank
94
Citations
7.231
z-index

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Record metadata

Created on: 2018-01-28
Curated by:
Sicheng Luo [2022-05-10]
[2018-11-30]
Pei Wang [2018-03-11]
Pei Wang [2018-03-07]
Pei Wang [2018-02-25]