You will know that one of your mutations or differences from the RSRS is a heteroplasmy by its letter codes.
|U||U (Uracil)||S||C or G|
|M||A or C||Y||C or T|
|R||A or G||K||G or T|
|W||A or T||V||A or C or G|
|H||A or C or T||B||C or G or T|
|D||A or G or T||X||G or A or T or C|
|N||G or A or T or C|
Like other types of mitochondrial DNA (mtDNA) mutations, heteroplasmy is written with the original value, the location of the mutation, and the new (mutated) value. For example, a heteroplasmy at position 73 where the heteroplasmic values are A or G is written as G73R.