"ACTA" -> "A[C>A]T"This is an internal function needed for generating "non-canonical" row number formats for catalogs.
Restaple96(c1)A vector of character strings with the first 3 characters
being the source trinucleotide and the last character being the
mutated (center) nucleotide. E.g. ACTA means a mutation from
ACT > AAT.