The main purpose of AmplifX is to seek in a collection of primers, such as any molecular biologist get in his refrigerators, those which can be use to amplify a fragment into a target sequence, for example, and particularly, to design strategies to screen recombinant clones by PCR. Some informations are associated with each primer, some automaticelly computed by AmplifX (like TM, Quality, length) and others given by the user (name, comments,...) This allows general aspects of primer management (sequences and real tubes). AmplifX can also design new primers.