{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://github.com/api-evangelist/ucsc-genomic-data/blob/main/json-schema/ucsc-genomic-data-sequence-schema.json",
  "title": "UCSC DNA Sequence Result",
  "description": "Schema for a DNA sequence response from the UCSC Genome Browser API.",
  "type": "object",
  "required": ["genome", "chrom", "dna"],
  "properties": {
    "genome": {
      "type": "string",
      "description": "Genome assembly identifier (e.g., hg38, mm39)."
    },
    "chrom": {
      "type": "string",
      "description": "Chromosome identifier (e.g., chr1, chrM)."
    },
    "start": {
      "type": "integer",
      "minimum": 0,
      "description": "Start position (0-based, half-open coordinates)."
    },
    "end": {
      "type": "integer",
      "minimum": 1,
      "description": "End position (1-based, half-open coordinates)."
    },
    "dna": {
      "type": "string",
      "pattern": "^[acgtACGTnN]*$",
      "description": "DNA sequence string (IUPAC nucleotide characters)."
    }
  }
}