Purified protein derivative

{
  "id": "MLC-T-CHM-009684",
  "term": "Purified protein derivative",
  "field": "Chemistry",
  "definition": "A complex mixture of proteins derived from the culture filtrate of Mycobacterium tuberculosis, used as an antigen in diagnostic tests for tuberculosis. This derivative elicits a delayed-type hypersensitivity reaction in individuals previously exposed to the bacterium. The tuberculin skin test, using PPD, is a common screening method.",
  "subject": "Chemistry and Human Health",
  "see_also": [
    "tuberculin"
  ],
  "references": [
    "PAC, 2012, 84, 1113. 'IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)' on page 1237 (https://doi.org/10.1351/PAC-REC-11-06-03)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/purified-protein-derivative/"
}