Character vector or string with the characters A, C, G, U, and ambiguous characters R, Y, K, M, S, W, B, D, H, V, N,

Row vector of integers from the table Mapping Nucleotide Integers to Letter Codes.

MATLAB^® structure containing a Sequence field that contains an RNA sequence, such as returned by fastaread, fastqread, emblread, getembl, genbankread, or getgenbank.