Matrix-assisted laser desorption ionization/ time-of-flight analysis of Mycobacterium europaeum . A. Matrix-assisted laser desorption ionization/time-of-flight mass spectrometry profile of Mycobacterium europaeum CSUR P1344 using colonies from egg-based Löwenstein–Jensen medium. B. Phylogenetic tree constructed using the neighbor-joining method (bootstrapped 1000 times) and Kimura’s two-parameter distance correction model based on rpoB partial sequences of 18 mycobacterial species including isolate CSUR P1344 collected in our patient’s sputum. Bootstrap values above 90% are given at nodes. Mycobacterium tuberculosis H37Rv was used as out-group. The scale bar represents 1% difference in nucleotide sequences. GenBank accession numbers are given in parentheses. M. is Mycobacterium.