A MUT file (.mut) is a tab-delimited text file that lists mutations. The first row contains column headings and each subsequent row identifies a mutation. IGV ignores the column headings. It reads the first five columns as shown below and ignores all subsequent columns:

  1. chromosome
  2. start location (location of the first base pair in the mutated region)
  3. end location (location of the last base pair in the mutated region)
  4. sample or patient ID
  5. mutation type (for example, Synonymous, Missense, Nonsense, Indel, etc.)

Example: example.mut

Display settings: For details on how to display mutations in IGV, see Mutations.