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008 130622s2012 xxx||||| |||| 00| 0 eng d
040 _cH12O
041 _aeng
100 _91612
_aMartínez Prats, Lorena
_eMicrobiología y Parasitología
245 0 0 _aDetection and quantification of the K103N mutation in HIV reverse transcriptase by pyrosequencing
_h[artículo]
260 _bDiagnostic Microbiology and Infectious Disease,
_c2012
300 _a72(1):90-6.
500 _aFormato Vancouver: García-González C, García-Bujalance S, Ruiz-Carrascoso G, Arribas JR, González-García J, Bernardino JI. Detection and quantification of the K103N mutation in HIV reverse transcriptase by pyrosequencing. Diagn Microbiol Infect Dis. 2012 Jan;72(1):90-6.
501 _aPMID: 22078905
504 _aContiene 22 referencias
520 _aProlonged treatment of human immunodeficiency virus (HIV)-infected patients with nonnucleoside reverse transcriptase inhibitors (NNRTIs) might result in the selection of resistant mutants, the most frequent being the K103N mutation in reverse transcriptase. Resistance mutations are routinely detected by Sanger sequencing of the whole viral population, which does not detect sequence variants with frequencies below 20%. We have developed a pyrosequencing approach for the analysis of codon 103 of the HIV reverse transcriptase gene in the circulating viral population that detects variants below the limit of conventional sequencing. The method was tested with samples from 5 controls (not exposed to NNRTIs), 6 from patients exposed to NNRTIs and having a K103N mutant virus population detected by conventional sequencing, and 9 from patients previously exposed to NNRTIs that had a wild-type virus population by conventional sequencing. In 7 of 9, samples the mutation could not be detected by either the standard assay or pyrosequencing, while in 2 samples persistence of the mutation could be detected by pyrosequencing. The method might be of practical use in detecting minority variants of HIV in the clinical setting, in epidemiological studies with large numbers of samples, or as a complement to more complex approaches.
710 _981
_aServicio de Microbiología y Parasitología
856 _uhttp://pc-h12o-es.m-hdoct.a17.csinet.es/pdf/pc/8/pc8125.pdf
_ySolicitar documento
942 _n0
_2ddc
_cART
999 _c8125
_d8125