01635nas a2200289   4500000000100000008004100001260001300042653002000055653001900075653002100094653001100115653001300126653001200139653002400151653002500175653001300200653003100213653003600244100001400280700001200294700001300306245013700319300001000456490000700466520085800473022001401331       1988                            d  c1988 Sep10aCorynebacterium10aDNA, Bacterial10aGenes, Bacterial10aHumans10aKinetics10aleprosy10aMycobacterium bovis10aMycobacterium leprae10aNocardia10aNucleic Acid Hybridization10aSequence Homology, Nucleic Acid1 aAntoine I1 aCoene M1 aCocito C00aSize and homology of the genomes of leprosy-derived corynebacteria, Mycobacterium leprae, and other corynebacteria and mycobacteria.  a45-500 v273 a<p>The genomes of Mycobacterium leprae and leprosy-derived corynebacteria (LDC), which have a similar base composition of guanine + cytosine 56 mol %, have been compared with those of reference bacteria of the CMN group (genera Corynebacterium, Mycobacterium, Nocardia). Genome sizes of three LDC strains were (1.2-2.5) x 10(6) base pairs. DNA from four of seven LDC strains examined had homology levels greater than 60%. Two other strains had a homology of 40% when compared with the CMN strains and one strain was distinctly different. The DNA from all seven LDC strains gave 0.3-18% hybridisation with that of M. leprae, 5-16% with reference corynebacteria, 5-12% with M. bovis, and 2-8% with Nocardia caviae. The small size of the LDC genome and its unrelatedness to those of M. leprae and organisms of the CMN group shows the uniqueness of LDC.</p>  a0022-2615