Full-length genome of wild-type hepatitis A virus (DL3) isolated in China.

ABSTRACT: AIM:To characterize the genome of an wild-type HAV isolate (DL3) in China. METHODS:A stool specimen was collected from hepatitis A patient from Dalian, China. HAV (DL3) was isolated and viral RNA was extracted. The genome of DL3 was amplified by reverse transcription and polymerase chain reaction (RT-PCR), followed by cloning into pGEM-T vector. The positive colonies were selected and sequenced. The full-length genome of DL3 was analyzed and compared with other wild-type HAV isolates. RESULTS:The genome of DL3 was 7 476 nucleotides (nt) in size, containing 732-nt 5'untranslated region (UTR), 6 681-nt open reading frame (ORF) which encoded a polyprotein of 2 227 amino acids (aa), and 63-nt 3'UTR. The base composition was 28.96 % A (2 165), 16.08 % C (1 202), 22.11 % G(1 653) and 32.85% U (2

SUBMITTER: Liu GD 

PROVIDER: S-EPMC4621569 | biostudies-literature | 2003 Mar

REPOSITORIES: biostudies-literature