Citation: MA Jin, DING Zheng-rong, JIANG Li-hong, LIU jian-sheng, LI Ya-xiong, CHEN Zhi-yu, MENG Ming-yao, WANG Ping, HOU Zong-liu. VP1 Sequence Analysis and Serological Identification of a New Isolated Enterovirus ECHO20 .VIROLOGICA SINICA, 2006, 21(5) : 513-515.

VP1 Sequence Analysis and Serological Identification of a New Isolated Enterovirus ECHO20

  • Available online: 20 September 2006
  • Hepatitis A virus and ECHO20 viruses were isolated from faeces of hepatitis A patients in Luxi County, Yunnan Province. The combined and single serological neutralization antibody tests of enterovirus demonstrated that the patients were infected by both viruses. One strain, named LX0901, was selected for RT-PCR by using the general primers of VP1 of enterovirus. The product was purified and sequenced. The data were deposited in GenBank and compared with the complete VP1 sequence of 3 isolated ECHO20 strains. Analysis indicated that the LX0901 strain was ECHO20 virus, which was in agreement with serological neutralization tests. The variations of amino acids were not so high with an identity of more than 97%, but the variation were distributed throughout the genome.

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    VP1 Sequence Analysis and Serological Identification of a New Isolated Enterovirus ECHO20

    • 1. 1.Institute of Medical Biology, Chinese Academy of Medical Sciences, Kunming 650118China
    • 2. .Yunnan Center for Disease Control and Prevention, Kunming 650021,China
    • 3. Yunnan Hospital,Kunming 650051, China

    Abstract: Hepatitis A virus and ECHO20 viruses were isolated from faeces of hepatitis A patients in Luxi County, Yunnan Province. The combined and single serological neutralization antibody tests of enterovirus demonstrated that the patients were infected by both viruses. One strain, named LX0901, was selected for RT-PCR by using the general primers of VP1 of enterovirus. The product was purified and sequenced. The data were deposited in GenBank and compared with the complete VP1 sequence of 3 isolated ECHO20 strains. Analysis indicated that the LX0901 strain was ECHO20 virus, which was in agreement with serological neutralization tests. The variations of amino acids were not so high with an identity of more than 97%, but the variation were distributed throughout the genome.

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