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In an attempt to unify the genetic and biological research on Mycobacterium leprae, the aetiological agent of leprosy, a cosmid library was constructed and then ordered by a combination of fingerprinting and hybridization techniques. The genome of M. leprae is represented by four contigs of overlapping clones which, together, account for nearly 2.8Mb of(More)
A simple procedure based on the polymerase chain reaction has been developed to detect Mycobacterium leprae, rapidly and unambiguously, in biological samples. Its application to small numbers of M. leprae cells (approximately 10(2] isolated from armadillo liver, mouse footpads or human biopsies is discussed.
A simple procedure is described for the detection of Mycobacterium leprae by the polymerase chain reaction in nerve biopsies sectioned with a cryostat and then treated with proteinase K. All samples from lepromatous leprosy patients and the majority of samples from paucibacillary cases yielded positive results. This approach may be useful for(More)
The genome of the causative agent of leprosy, Mycobacterium leprae, contains at least 28 copies of a dispersed repetitive sequence, RLEP. From nucleotide sequence analysis it was clear that the RLEP element consists of a 545 bp central domain flanked by a 100 bp left-end and a 44 bp right-end, sometimes associated with a 47 bp extension. The presence of the(More)
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