Cortexa research tool·genomics·ensembl_xrefs

Ensembl Lookup Gene By Symbol

Look up Ensembl gene IDs for a gene symbol across external databases. Given a gene symbol (e.g., 'TP53'), returns all matching Ensembl gene and transcript IDs. Useful for converting gene symbols to Ensembl stable identifiers for use with other Ensembl APIs. Example: symbol 'TP53' in human returns ENSG00000141510 (gene) and related transcript/translation IDs; 'BRCA1' returns ENSG00000012048.

Livelast probed 2026-04-30 23:07Z· 105msCortexa

Status

The most recent probe succeeded. Safe to call from the agent today.

Last probed: 1d ago
Last success: 1d ago
Last latency: 105ms

Schema

JSON Schema the agent (or your API call) must match.

{
  "properties": {
    "external_db": {
      "description": "Optional: filter by external database. Examples: 'HGNC', 'EntrezGene'.",
      "type": [
        "string",
        "null"
      ]
    },
    "species": {
      "description": "Species name. Default: 'human'. Examples: 'human', 'mouse', 'rat', 'zebrafish'.",
      "type": "string"
    },
    "symbol": {
      "description": "Gene symbol to look up. Examples: 'TP53', 'BRCA1', 'EGFR', 'BRAF', 'KRAS'.",
      "type": "string"
    }
  },
  "required": [
    "symbol"
  ],
  "type": "object"
}

Examples (1)

Default Ensembl Lookup Gene By Symbol call

public-safeinput

{
  "symbol": ""
}

Expected response keys: success

Anonymous-safe example. Rate-limited; no sign-in required.

Identifiers

Catalog ID: tu_Ensembl_lookup_gene_by_symbol
Tool name: Ensembl_lookup_gene_by_symbol
Added: 2026-04-30 22:47Z
Tags: tooluniverse

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