Cortexa research tool·genomics·epigenomics

ENCODE Search Chromatin Accessibility

Search ENCODE chromatin accessibility experiments (ATAC-seq and DNase-seq). ATAC-seq and DNase-seq identify open chromatin regions including promoters, enhancers, and other regulatory elements. Returns experiment accessions, biosample details, and accessibility assay metadata. Open chromatin regions are sites of active gene regulation where transcription factors can bind. Use this to find chromatin accessibility data for specific tissues or cell types.

Livelast probed 2026-04-30 23:07Z· 511msCortexa

Status

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

Last probed: 1d ago
Last success: 1d ago
Last latency: 511ms

Schema

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

{
  "properties": {
    "assay_type": {
      "default": "ATAC-seq",
      "description": "Chromatin accessibility assay: 'ATAC-seq' (Assay for Transposase-Accessible Chromatin, newer/preferred) or 'DNase-seq' (DNase I hypersensitive sites, larger dataset).",
      "type": "string"
    },
    "biosample_term_name": {
      "description": "Biosample name filter (e.g., 'K562', 'GM12878', 'liver'). Leave empty for all.",
      "type": [
        "string",
        "null"
      ]
    },
    "limit": {
      "default": 25,
      "description": "Maximum number of results to return.",
      "maximum": 100,
      "minimum": 1,
      "type": "integer"
    },
    "organism": {
      "default": "Homo sapiens",
      "description": "Organism scientific name.",
      "type": "string"
    }
  },
  "type": "object"
}

Examples (1)

Default ENCODE Search Chromatin Accessibility call

public-safeinput

{
  "limit": 3
}

Expected response keys: success

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

Identifiers

Catalog ID: tu_ENCODE_search_chromatin_accessibility
Tool name: ENCODE_search_chromatin_accessibility
Added: 2026-04-30 22:47Z
Tags: tooluniverse

ENCODE Search Chromatin Accessibility

Livelast probed 2026-04-30 23:07Z· 511msCortexa

Schema

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

{ "properties": { "assay_type": { "default": "ATAC-seq", "description": "Chromatin accessibility assay: 'ATAC-seq' (Assay for Transposase-Accessible Chromatin, newer/preferred) or 'DNase-seq' (DNase I hypersensitive sites, larger dataset).", "type": "string" }, "biosample_term_name": { "description": "Biosample name filter (e.g., 'K562', 'GM12878', 'liver'). Leave empty for all.", "type": [ "string", "null" ] }, "limit": { "default": 25, "description": "Maximum number of results to return.", "maximum": 100, "minimum": 1, "type": "integer" }, "organism": { "default": "Homo sapiens", "description": "Organism scientific name.", "type": "string" } }, "type": "object" }