Example of Variation profile of CYP2C19 at Position 1015 as VRS

{
  "resourceType" : "MolecularDefinition",
  "id" : "example-variation-cyp2c19-1015-vrs",
  "meta" : {
    "profile" : ["http://hl7.org/fhir/StructureDefinition/variation"]
  },
  "type" : "dna",
  "location" : [{
    "sequenceLocation" : {
      "sequenceContext" : {
        "reference" : "MolecularDefinition/example-sequence-nm0007694-url",
        "type" : "MolecularDefinition",
        "display" : "Starting Sequence Resource: (CYP2C19), mRNA, NM_000769.4"
      },
      "coordinateInterval" : {
        "numberingSystem" : {
          "coding" : [{
            "system" : "http://loinc.org",
            "code" : "LA30100-4",
            "display" : "0-based interval counting"
          }],
          "text" : "0-based interval counting"
        },
        "startQuantity" : {
          "value" : 1015
        },
        "endQuantity" : {
          "value" : 1016
        }
      }
    }
  }],
  "representation" : [{
    "focus" : {
      "coding" : [{
        "system" : "http://hl7.org/fhir/moleculardefinition-focus",
        "code" : "reference-state",
        "display" : "Reference State"
      }]
    },
    "literal" : {
      "value" : "A"
    }
  },
  {
    "focus" : {
      "coding" : [{
        "system" : "http://hl7.org/fhir/moleculardefinition-focus",
        "code" : "alternative-state",
        "display" : "Alternative State"
      }]
    },
    "literal" : {
      "value" : "G"
    }
  }]
}