RT Journal Article SR Electronic(1) A1 Haa, Hava A1 Davidson, Yehudith A1 Sacks, T.YR 1972 T1 Taxonomy Of Mycobacteria Studied By Polyacrylamide-Gel Electrophoresis Of Cell Proteins JF Journal of Medical Microbiology, VO 5 IS 1 SP 31 OP 37 DO https://doi.org/10.1099/00222615-5-1-31 PB Microbiology Society, SN 1473-5644, AB Summary Polyacrylamide-gel electrophoretic patterns of the proteins of type strains of atypical mycobacteria and of clinical isolates were compared. Strains identified according to morphological and biochemical characteristics showed patterns identical with those of their respective type strains. The various type strains could be grouped according to the degree of similarity shown by their protein-gel patterns. This grouping did not always correspond to the standard classification of Runyon. The photo- and scoto-chromogens appear to be closely related to each other, and to be closer to Myco. tuberculosis than to the other atypical mycobacteria. Within the non-photochromogenic group, Myco. avium and Myco. intracellulare appear to be sufficiently different to justify their separation into different groups. Similarly, the rapid growers seem to form two distinct groups. It is suggested that the current system of classification of Mycobacterium spp. does not accurately reflect genetic relatedness between the different types., UL https://www.microbiologyresearch.org/content/journal/jmm/10.1099/00222615-5-1-31