Detection of hepatitis B virus A1762T/G1764A mutant by amplification refractory mutation system

Detection of hepatitis B virus A1762T/G1764A mutant by amplification refractory mutation system.

OBJECTIVE To study the role of hepatitis B virus with A1762T/G1764A double mutation in liver cirrhosis and hepatocellular carcinoma, and create a sensitive, fast, accurate assay for detection of A1762T/G1764A double mutation. METHODS We developed an accurate and fast real-time amplification refractory mutation system to detect A1762T/G1764A double mutation. Cloned hepatitis B virus genome was...

Quantitative detection of the M204V hepatitis B virus minor variants by amplification refractory mutation system real-time PCR combined with molecular beacon technology.

Mutations in the highly conserved tyrosine-methionine-aspartate-aspartate (YMDD) motif are frequently associated with resistance to antivirals and represent a major concern in the treatment of hepatitis B virus (HBV) infection. Conventional methods fail to detect minority populations of drug-resistant viral quasispecies if they represent less than 25% of the total sample virus population. The a...

The Quantitative Amplification Refractory Mutation System

The amplifi cation refractory mutation system (ARMS), which has also been described as allele-specifi c PCR (ASP) and PCR amplifi cation of specifi c alleles (PASA), is a PCR-based method of detecting single base mutations (Newton et al., 1989). ARMS has been applied successfully to the analysis of a wide range of polymorphisms, germline mutations and somatic mutations. The technique has the ab...

Rapid HLA typing by multiplex amplification refractory mutation system.

AIMS To detect HLA susceptibility and protective alleles associated with insulin dependent diabetes mellitus (IDDM) using a multiplex amplification refractory mutation system (ARMS). These include DR3 and DR4 alleles at the DRB1 locus, presence or absence of aspartic acid at position 57 (Asp-57) of the DQB1 locus, and presence or absence of arginine at position 52 (Arg-52) of the DQA1 locus. ...

Detection of five common CFTR mutations by rapid-cycle real-time amplification refractory mutation system PCR.