Diversity of potential short tandem repeats in Mycobacterium leprae and application for molecular typing
s.l; s.n; Oct. 2005. 9 p. tab.
Non-conventional
em En
| SES-SP, HANSEN, HANSENIASE, SESSP-ILSLACERVO, SES-SP
| ID: biblio-1241695
Biblioteca responsável:
BR191.1
Localização: [{"text": "BR191.1", "_a": "09342/s"}]
ABSTRACT
A recent advance in molecular typing for tracing the transmission of leprosy is the discovery of short tandem repeats (STRs) in Mycobacterium leprae. To substantiate polymorphic loci from STR as promising candidates for molecular typing tools in leprosy epidemiology, 44 STR loci including 33 microsatellites and 11 minisatellites were investigated among 27 laboratory strains by sequencing PCR products. Not all STRs were necessarily polymorphic. Thirty-two out of the 44 loci were polymorphic. Nine polymorphic loci were suitable for identifying genotypes according to the discriminatory capacity, stability, and reproducibility. All the strains were classified into independent genotypes by the selected nine loci. Three multi-case households were subjected to molecular typing. M. leprae obtained from household cases showed identical copy numbers by TTC triplet alone, but the isolates from one family contact case were divided into different genotypes by adding eight other polymorphic loci. The combination of information from multiple loci allows increasing levels of discrimination and it is likely that the generation and documentation of data will result in the choice of a potential molecular typing tool for leprosy epidemiology.
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Coleções:
06-national
/
BR
Base de dados:
HANSEN
/
HANSENIASE
/
SES-SP
/
SESSP-ILSLACERVO
Assunto principal:
Variação Genética
/
DNA Bacteriano
/
Marcadores Genéticos
/
Técnicas de Tipagem Bacteriana
/
Análise de Sequência de DNA
/
Repetições Minissatélites
/
Repetições de Microssatélites
/
Sequências de Repetição em Tandem
/
Pé
/
Hanseníase
Tipo de estudo:
Prognostic_studies
Limite:
Animals
/
Humans
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Non-conventional