Genetic diversity of the dnaJ gene in the Mycobacterium avium complex Morita, Yukio and Maruyama, Soichi and Kabeya, Hidenori and Nagai, Akira and Kozawa, Kunihisa and Kato, Masahiko and Nakajima, Takashi and Mikami, Takeshi and Katsube, Yasuji and Kimura, Hirokazu,, 53, 813-817 (2004), doi = https://doi.org/10.1099/jmm.0.45601-0, publicationName = Microbiology Society, issn = 0022-2615, abstract= The Mycobacterium avium complex (MAC) is associated with various diseases in humans as a zoonosis. The dnaJ gene was partially sequenced in Schaefer's 28 reference strains of MAC, 14 human MAC isolates and 22 veterinary isolates. From substitutions affecting 21–32 nucleotides, all strains could be classified into 14 groups. Most nucleotide substitutions did not alter amino acid sequences. Approximately 8 % genetic diversity was seen in these strains, which divided into two clusters: cluster I (0.8 % genetic diversity), comprising the reference strain serotypes 1–6, 8–11 and 21 and all isolates; and cluster II (7 % genetic diversity), comprising the remaining reference strains. Analysis of the dnaJ gene in MAC may be useful in epidemiological studies., language=, type=