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RNA-dependent RNA polymerase gene sequence from foot-and-mouth disease virus in Hong Kong

  • Xi Chen
  • , Qian Feng
  • , Zhiyin Wu
  • , Yingying Liu
  • , Kun Huang
  • , Rui Shi
  • , Sidi Chen
  • , Wen Lu
  • , Mingxiao Ding
  • , Richard A. Collins
  • , Yin Wan Wendy Fung
  • , Lok Ting Lau
  • , Albert Cheung Hoi Yu
  • , Jianguo Chen*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

10 Citations (Scopus)

Abstract

A foot-and-mouth disease virus (FMDV, HKN/2002) was isolated in Hong Kong in 2002. The nucleotide sequence of the 3Dpol gene encoding the viral RNA-dependent RNA polymerase was determined and compared with that of the same gene from other FMDVs. The 3Dpol gene was 1410 nucleotides in length encoding a protein of 470 amino acid residues. Sequence comparisons indicated that HKN/2002 belonged to serotype O. An evolutionary tree based on the 3Dpol sequences of 20 FMDV isolates revealed that the nucleotide sequence of the HKN/2002 3Dpol gene was most similar to those of isolates found in Taiwan in 1997, suggesting that they share a common ancestor. The amino acid sequence of the HKN/2002 3Dpol gene was determined and aligned with those of representative isolates from seven other Picornaviridae genera. Eight highly conserved regions were detected, indicating a conserved functional relevance for these motifs. Alignment of 20 FMDV 3D pol amino acid sequences revealed a hypermutation region near the N-terminus that may help the virus evade host immune systems.

Original languageEnglish
Pages (from-to)899-905
Number of pages7
JournalBiochemical and Biophysical Research Communications
Volume308
Issue number4
DOIs
Publication statusPublished - 5 Sept 2003

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

User-Defined Keywords

  • 3D gene
  • Foot-and-mouth disease virus
  • Hypermutation
  • RNA-dependent RNA polymerase
  • Sequence alignment
  • Serotype

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