ZHAO W en—hua, SONG Jian—ling, ZHU Jian—bo, XIN Ai—guo, WANG Jin—ping, LI Zhi—hua and ZHANG Nian—ZU. Sequencing and Analysis on the F and HN Genes of Avian paramyxovirus Type I Isolated from Parrot[J]. Virologica Sinica, 2003, 18(4): 394-396.
Citation: ZHAO W en—hua, SONG Jian—ling, ZHU Jian—bo, XIN Ai—guo, WANG Jin—ping, LI Zhi—hua, ZHANG Nian—ZU. Sequencing and Analysis on the F and HN Genes of Avian paramyxovirus Type I Isolated from Parrot .VIROLOGICA SINICA, 2003, 18(4) : 394-396.

鹦鹉源I型禽副粘病F 和HN基因序列测定与分析

  • 禽副粘病毒(Avian paramyxovirus,APMV)属于 副粘病毒科、副粘病毒亚科、腮腺炎病毒属,现已 确定有9个血清型(APMV.1-9)。APMV一1血清 型是禽类最重要的致病型,几乎所有禽种均对其敏 感⋯。该病毒是一种有囊膜的单股负链RNA病毒, 由囊膜、核衣壳和核酸组成;基因组全长约15kb, 编码两种囊膜糖蛋白(HN蛋白和F蛋白)和四种 结构蛋白一基质蛋白(M 蛋白)、核衣壳蛋白(NP 蛋白)、磷蛋白(P蛋白)、大蛋白(L蛋白),此外 还编码两种非结构蛋白(36ku和33ku蛋白)口J; 各结构蛋白基因在基因组上的排列顺序为 3"-NP—P—M—F—HN.L.5 川。HN 糖蛋白具有血凝素和 神经氨酸酶两种活性,在发病过程中起着识别细胞 受体的作用;F糖蛋白则参与病毒的穿透、细胞融 合和溶血等作用。F蛋白和HN 蛋白具有良好的免 疫原性,用真核细胞表达系统表达的F蛋白和HN 蛋白免疫动物后, 对强毒的攻击具有一定保护作 用,因此两者常被用作研制基因工程苗的目的基因 [4,5]。本文根据GenBank下载的序列,合成引物, 就在云南省分离到的一株鹦鹉副粘病毒(编号 YN—PA01),应用RT.PCR技术扩增F.HN基因全长 序列,并将其克隆至T载体上,然后使用引物步移 法(primer walking)进行序列测定,最后得出 w 基因全核苷酸序列。现将整个试验过程简报如下。 以期试验结果能为副粘病毒的相关研究提供一定 的理论依据。

Sequencing and Analysis on the F and HN Genes of Avian paramyxovirus Type I Isolated from Parrot

  • Virion RNA was abstracted from purified type I Avian paramyxovirus strain YN—PA0 1 (isolated from parrot)and used as a template.The fragment containing the fusion gene(F)and hemagglutinin-·neuraminidase gene(HN)of the isolate was amplified by RT-·PCR and cloned to the pMD 1 8一T Vector.Using primer walking method the complete sequence of F-HN genes was obtained finally. And the respective amino acid sequence was deduced.Through relative software the phylogenetic trees on F gene an d HN gene were constructed between strain YN—PA0 1 an d reference strains.The results showed that strain YN—PA01 comparing with reference strains displays 98.7% -83.2% nucleotide homology an d 98.1%-86.2% amino acid homology on F gene;97.4%-79.1% nucleotide homology an d 97.2% -83.2% amino acid homology on HN gene.Additional 6 amino acids are encoded by the HN gene ORF of strain YN—PA01 comparing with national reference strains.Th e studied strain YN—PA01 exhibits highest identities with strain JS/5/0 1/Go either an alyzed on F gene or HN gene.

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    Sequencing and Analysis on the F and HN Genes of Avian paramyxovirus Type I Isolated from Parrot

    • 1. Yunnan Province Tropical and Subtropical Animal Virus Disease Laboratory,Kunming 650224,China

    Abstract: Virion RNA was abstracted from purified type I Avian paramyxovirus strain YN—PA0 1 (isolated from parrot)and used as a template.The fragment containing the fusion gene(F)and hemagglutinin-·neuraminidase gene(HN)of the isolate was amplified by RT-·PCR and cloned to the pMD 1 8一T Vector.Using primer walking method the complete sequence of F-HN genes was obtained finally. And the respective amino acid sequence was deduced.Through relative software the phylogenetic trees on F gene an d HN gene were constructed between strain YN—PA0 1 an d reference strains.The results showed that strain YN—PA01 comparing with reference strains displays 98.7% -83.2% nucleotide homology an d 98.1%-86.2% amino acid homology on F gene;97.4%-79.1% nucleotide homology an d 97.2% -83.2% amino acid homology on HN gene.Additional 6 amino acids are encoded by the HN gene ORF of strain YN—PA01 comparing with national reference strains.Th e studied strain YN—PA01 exhibits highest identities with strain JS/5/0 1/Go either an alyzed on F gene or HN gene.

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