Figure 1From: Context-driven discovery of gene cassettes in mobile integrons using a computational grammarThe cassette array grammar. The start of the array is marked by an integron-class specific 5' flanking sequence or attI and its end with the corresponding 3' flanking sequence, tni or ybeA. The middle consists of a number of cassettes and non-cassette insertions (NCI) such as insertion sequences.Back to article page