Microcomputer programs for back translation of protein to DNA sequences and analysis of ambiguous DNA sequences

Three computer programs are described which may be used to translate a DNA sequence into a protein sequence, back translate the protein sequence into an ambiguous DNA sequence, and then do pattern searching in the ambiguous sequence. The programs are written in the C programming language, have been compiled to run on a microcomputer under the CP/M 80 operating system, and may be copied in binary format through a modem. They are also to become available for the IBM/PC.