Example of Variation of CYP2C19 at Position 1016 as VCF

{
  "resourceType" : "MolecularDefinition",
  "id" : "example-variation-cyp2c19-1016-vcf",
  "moleculeType" : {
    "coding" : [{
      "system" : "http://hl7.org/fhir/sequence-type",
      "code" : "dna",
      "display" : "DNA Sequence"
    }]
  },
  "location" : [{
    "sequenceLocation" : {
      "sequenceContext" : {
        "reference" : "MolecularDefinition/example-sequence-nm0007694-url",
        "type" : "MolecularDefinition",
        "display" : "Starting Sequence Resource: (CYP2C19), mRNA, NM_000769.4"
      },
      "coordinateInterval" : {
        "coordinateSystem" : {
          "system" : {
            "coding" : [{
              "system" : "http://loinc.org",
              "code" : "LA30102-0",
              "display" : "1-based character counting"
            }],
            "text" : "1-based character counting"
          }
        },
        "startQuantity" : {
          "value" : 1016
        }
      }
    }
  }],
  "representation" : [{
    "focus" : {
      "coding" : [{
        "code" : "reference-state",
        "display" : "Reference State"
      }]
    },
    "literal" : {
      "value" : "A"
    }
  },
  {
    "focus" : {
      "coding" : [{
        "code" : "alternative-state",
        "display" : "Alternative State"
      }]
    },
    "literal" : {
      "value" : "G"
    }
  }]
}