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Class 1 and class 2 integron structures. (a) Class 1 (a–r) and class 2 integrons structures identified in this collection. ST131 H30R i and ii refer to the two H30R subclades resolved by the SNP-based phylogeny presented in Fig. 2(b). (b) EasyFig comparison of integron b and the chromosome-associated integron structure from Pseudomonas aeruginosa strain SP4527.
