Search expression in Duaer

What you get

Expression in the Duaer data market searches GTEx median TPM by tissue. One successful search uses 1 credit.

Add the node from the Duaer Data category (Expression), or copy the skill on the data market. Related: Genes and Proteins.

Search on the canvas

1. Open the node creator, select Duaer Data, then Expression.
2. Gene or Gencode ID is required (a new node starts with Gene INS). Tissue is optional (for example Pancreas).
3. Limit defaults to 10, max 20; results sort by median TPM descending. Select Execute step.

A successful search uses 1 credit. Production deliverables land in the data pool.

Call the API

• GET https://api.duaer.com/v1/data/expression?...
• Authorization: Bearer <Duaer key>
• gene or gencodeId is required.

For keys, refer to Authentication for the Duaer public API. Below is the same English call skill as Copy skill.

Call skill

Same text as Copy skill on the Duaer data market. Keep it English.

---
name: duaer-expression
description: >-
  Search GTEx median tissue expression through Duaer.
  One successful search uses 1 Duaer credit.
---

# Duaer expression

Search GTEx median tissue expression through Duaer with a Duaer key.

## Call

`GET https://api.duaer.com/v1/data/expression?gene=INS&limit=10`

Header: `Authorization: Bearer <Duaer key>`

Use an account key or a model API key.

At least `gene` or `gencodeId` is required.

- `gene` — gene symbol. Look up symbols with https://skills.duaer.com/genes.md.
- `gencodeId` — optional. Ensembl/Gencode id from a result, such as `ENSG00000254647.6`.
- `tissue` — optional. GTEx tissue id, such as `Pancreas` or `Adipose_Subcutaneous`.
- `limit` — optional. From 1 to 20. Default 10. Results are sorted by median TPM descending.

## Result

Each item has `source`, `title`, `url`, `summary`, `gene`, `gencodeId`, `tissue`, `tissueLabel`, `median`, `unit`, `ontologyId`, and `dataset`.
Reuse `gene` when searching proteins or genes. Reuse `gencodeId` in `gencodeId` for an exact expression lookup. For gene–disease associations, use https://skills.duaer.com/targets.md.

## Credits

One successful search uses 1 credit.
An empty search, a failed search, a compound that matches nothing, or no remaining credits uses 0.
No remaining credits returns 402 and does not search.
A missing key returns 401.