Genomics · Database
GTEx
A genomics database providing gene expression data and single-tissue eQTLs across 54 human tissues.
What GTEx is
GTEx is a genomics database that catalogues gene expression across 54 human tissues. It provides researchers with transcriptional measurements and single-tissue expression quantitative trait loci (eQTLs), which link genetic variation to changes in gene expression.
The open-access tier enables scientists to investigate how genes are expressed and regulated across dozens of physiological tissue types in the human body.
How it is organised
The resource maintains gene expression profiles and single-tissue eQTL data across 54 human tissues within an open-access data tier.
Key facts
- Category
- Genomics
- Tissues covered
- 54 human tissues
- Data types
- Gene expression, single-tissue eQTLs
- Access tier
- Open-access tier
What you can use it for
- Analysing tissue-specific expression
- Inspect gene expression levels across 54 distinct human tissue types.
- Mapping single-tissue eQTLs
- Identify expression quantitative trait loci associated with regulatory variation in individual tissues.
- Comparative tissue analysis
- Compare expression levels and regulatory patterns across different human tissues.
Query it here
The research agent queries GTEx directly — no account, no API key — and every answer links back to the record it came from. Ask in plain language and it writes the query.
Strengths and limits
Good at
- Spans 54 distinct human tissues within a single database.
- Provides single-tissue eQTL data alongside gene expression levels.
Watch out for
- Data covered directly in this tier is limited to 54 tissues and single-tissue eQTL analyses.
- Access is restricted to data available through the open-access tier.
Questions
Can I search GTEx without writing code?
Yes. The research agent queries GTEx directly, with no account or API key, and cites the record behind every answer. Ask in plain language — for a gene, a protein, a compound or a study — and it builds the query for you.
Can I reuse data from GTEx?
Open access under the NIH Genomic Data Sharing policy. Individual-level genotypes and full donor metadata are controlled access through dbGaP (phs000424) and are not reachable here. Terms: https://gtexportal.org/home/license
How many tissues are represented in GTEx?
The resource covers 54 human tissues.
What primary genomic features does the database provide?
It provides gene expression measurements and single-tissue eQTL data.
Is all data openly accessible?
The database provides an open-access tier for exploring gene expression and single-tissue eQTLs.
Written from GTEx's own website and reference material. Statements citing a figure that does not appear there are removed before publication. Licence and running details come from our registry.