{
  "meta": {
    "data_length": 1,
    "message": "Biomarker id ER negative retrieved successfully",
    "request_url": "http://api.moalmanac.org/biomarkers?biomarker_name=ER%20negative",
    "status": "success",
    "status_code": 200,
    "timestamp_elapsed": 0.003026,
    "timestamp_received": "2026-05-13T15:38:39.308473+00:00Z",
    "timestamp_returned": "2026-05-13T15:38:39.311499+00:00Z",
    "trace_id": "80720dd6-ee77-4d4a-8de9-d8bb4f6657ea"
  },
  "service": {
    "github": "https://github.com/vanallenlab/moalmanac-db",
    "name": "Molecular Oncology Almanac",
    "license": "GPL-2.0",
    "release": "draft",
    "url": "https://dev.moalmanac.org",
    "last_updated": "2026-05-07"
  },
  "data": [
    {
      "id": 43,
      "name": "ER negative",
      "genes": [],
      "type": "CategoricalVariant",
      "extensions": [
        {
          "name": "biomarker_type",
          "value": "Protein expression"
        },
        {
          "name": "present",
          "value": true
        },
        {
          "name": "marker",
          "value": "Estrogen receptor (ER)"
        },
        {
          "name": "unit",
          "value": "status"
        },
        {
          "name": "equality",
          "value": "="
        },
        {
          "name": "value",
          "value": "Negative"
        }
      ]
    }
  ]
}