Immunoglobulin G

{
  "id": "MLC-T-CHM-005679",
  "term": "Immunoglobulin G",
  "field": "Chemistry",
  "definition": "The most abundant class of antibody found in blood and tissue fluids, constituting about 75% of serum immunoglobulins in humans. This monomeric protein is central to the secondary immune response, providing long-term protection against bacteria, viruses, and toxins. Immunoglobulin G is the only antibody isotype capable of crossing the placental barrier, which confers passive immunity to the fetus and newborn.",
  "subject": "Chemistry and Human Health",
  "see_also": [
    "heavy chain"
  ],
  "references": [
    "PAC, 2012, 84, 1113. 'IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)' on page 1188 (https://doi.org/10.1351/PAC-REC-11-06-03)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/immunoglobulin-g/"
}