VECTORS AND METHODS FOR SELECTING OPEN READING FRAMES

摘要

The invention provides vectors and methods designed for screening large random DNA fragment libraries for the presence of open reading frames that are free of both internal ribosome binding sites (IRBS) and stop codons. The invention overcomes the principal limitation of known ORF-selector systems, namely the potential for ORF-induced folding interference of the downstream fused reporter, by not fusing the reporter to the ORF, but rather by providing a mechanism for coupled translation of an unfused downstream reporter.