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          "allele": "T",
          "end": 305,
          "referenceAllele": "C",
          "start": 304
        }
      ],
      "gene": "http://reg.genome.network/gene/GN001550",
      "geneNCBI_id": 875,
      "geneSymbol": "CBS",
      "hgvs": [
        "NM_001178008.3:c.68C>T"
      ],
      "proteinEffect": {
        "hgvs": "NP_001171479.1:p.Ser23Leu",
        "hgvsWellDefined": "NP_001171479.1:p.Ser23Leu"
      },
      "referenceSequence": "http://reg.genome.network/refseq/RS713548"
    },
    {
      "@id": "http://reg.genome.network/allele/PA916024361",
      "coordinates": [
        {
          "allele": "T",
          "end": 326,
          "referenceAllele": "C",
          "start": 325
        }
      ],
      "gene": "http://reg.genome.network/gene/GN001550",
      "geneNCBI_id": 875,
      "geneSymbol": "CBS",
      "hgvs": [
        "NM_001320298.2:c.68C>T"
      ],
      "proteinEffect": {
        "hgvs": "NP_001307227.1:p.Ser23Leu",
        "hgvsWellDefined": "NP_001307227.1:p.Ser23Leu"
      },
      "referenceSequence": "http://reg.genome.network/refseq/RS717765"
    }
  ],
  "type": "nucleotide"
}