Field description type properties example enum
assemblyId Genomic assembly accession and version as RefSqeq assembly accession (e.g. "GCF_000001405.39") or a versioned assembly name or synonym such as UCSC Genome Browser assembly (e.g. "hg38") or Genome Reference Consortium Human (e.g. "GRCh38.p13") names. string NA GCF_000001405.39, hg38, GRCh38.p13 NA