Answer: A full-length ORF (Open Reading Frame) clone is a plasmid that contains a protein coding DNA insert that encodes a full-length protein. The DNA insert contains only the protein coding sequence (from start codon to stop codon) of a full-length gene (or cDNA) without 5' and 3' end untranslated regions (UTRs), or introns. GeneCopoeia offers the largest collection of ORF clones, with genome-wide coverage for human and mouse. Complete ORF cDNA clone collection and selection guide – Include comparison of ORF expression-ready clones, ORF Gateway® PLUS shuttle clones, ORFeome collaboration Gateway® entry clones and full-length cDNA clones.