对虾白斑综合症病毒重组cDNA克隆的构建与分析
THE CONSTRACTION AND ANALYSIS FOR cDNA CLONES OF WHITE SPOT SYNDROME VIRUS OF SHRIMP
-
摘要: 取经人工注射感染了对虾白斑综合症病毒40-45h的凡纳对虾鳃组织,分离mRNA,以mRNA为模板合成双链cDNA,并克隆于PUC质粒的Not I/Sal I位点,构建了1000余株对虾感染后期鳃细胞的重组cDNA克隆.重组质粒经PCR鉴定插入片段,DNA斑点杂交分析目的片段,测定了20株对虾白斑综合症病毒的重组cDNA克隆的末端DNA序列,并对其进行了包含存在的开放阅读框架、启动区上游序列、编码产物的特性等分析.结果显示:PCR产物在0.3-1.6kb之间;大于1kb的克隆中有31.%的克隆为白斑综合症病毒的重组cDNA克隆.已测序的不包含同源序列的13株克隆中含有14个开放阅读框,其中11个上游可检出启动子基序,4个可检出启动子调制元件.ORF转译产物的特性基序分析显示:有2个O RFs可检出锌指基序,3个ORFs可检出亮氨酸拉链基序,2个ORFs可检出NTP结合基序,未检出核定位信号基序.Abstract: Shrimp gills of Litopenaeus vannamei , which have been infected by White Spot Syndrome Virus of shrimp, were collected after injecting 40 45 hours. The Poly(A)+ mRNA were selected from purified gill's total RNA using Oligo(dT)cellulose in a filter syringe format. The double strand cDNA were catalyzed by AMV reverse transcriptase and E. coli DNA polymerase | in combination with E. coli RNase H and E. coli DNA ligase using the mRNA as a template. After ligating of Size Fractionated cDNA to the Plasmid Vector PUC19 and introducing into E. coli , more than 1000 cDNA clones were harvest. We analysis the insert by PCR, analysis aim clones by dot blot hybridization and sequenced terminal DNA sequence of 20 cDNA of White Spot Syndrome Virus clones. We still analysis the Open Reading Frame of cDNA clones by some computer software and Web server, analysis upstream DNA sequence of ORF and the character of putative protein. We have look up the alignment DNA and protein of cDNA in NCBI database. The results of PCR shown that the PCR products are from 0.3kb to 1.6kb. There are 313 clones its products are more than 1kb, this occupied 31.5% of all cDNA clones. There are 31.8% clones are WSSV cDNA clones by DNA dot blot hybridization. 14 full or not full ORFs have been found in 13 clones. The upstream DNA sequence analysis shown that there are 7 ORFs have early promoter motifs and there are 4 ORFs have later promoter motifs, among of them there are 3 ORFs which have early and later promoter motifs too. And the enhancer motifs can be found in 4 ORFs, the G+C rich sequence is the common motif. The analysis of the special protein motif of ORF shown that the Zinc finger motif can be found in 2 ORFs, Leucine Zipper motif can be found in 3 ORFs, the NTP binding motif can be found in 2 ORFs, and the nuclear localization signal motif can't be found in 14 ORFs. ORF S13 has alignment protein by BLAST in NCBI database.
-
Keywords:
- White Spot Syndrome Virus /
- cDNA /
- Synthesis /
- Analysis
-
-
[1] 黄NFDC8,宋晓玲,于佳,等.杆状病毒性的皮下及造血组织坏死-对虾暴发性流行病的病原和病理学[J].海洋水产研究,1995,16(1): 1-10[2] Yang F, Wang W, Chen R Z, et al. A simple and efficient method for purification of prawn baculovirus DNA[J].Journal of Virological Methods,19 97, 67:1-4[3] Marielle C W van Hulten, Meng-Feng Tsai, Christel A Schipper, et a l. Analysis of a genomic segment of white spot syndrome virus of shrimp containi ng ribonucleotide reductase genes and repeat regions [J]. Journal of General Virology, 2000, 81: 307-316[4] Sambrook J, Fritsch E F, Maniatis T. Molecular Cloning: A Laborator y Manual, 2nd edn [M]. New York: Cold Spring Harbor Laboratory, 1989[5] 吕鸿声.昆虫病毒分子生物学[M].北京:农业科技出版社,1998, 177-27 4[6] Wang Q, Poulos B T, Lightner D V. Protein analysis of geographic is olates of shrimp white spot syndrome virus [J].Arch Virol. 2000, 145(2): 263-274[7] 黄NFDC8,于佳,宋晓玲,等.对虾皮下及造血组织坏死杆状病毒的精细结构、核酸、多肽及血清学研究[J].海洋水产研究,1995, 16(1): 11 -23[8] Nadala E C B Jr, P C Loh. A comparative study of three different is olates of white spot virus [J].Dis. Aquat. Org. 1998, 33:2 31-234[9] Marielle C W van Hulten, Westenberg M, Goodall S D, et al. Identifi cation of two major virion protein genes of white spot syndrome virus of shrimp [J].Virology, 2000, 266)2): 227-236[10] Meng-Feng Tsai, Chu-Fang Lo, Marlelle C W van Hulten, et al, Transcrip tional Analysis of the Ribonucleotide Reductase Genes of Shrimp White Spot Syndr ome virus [J].Virology, 2000, 277)1):92-110[11] 周国瑛,吴建华,沈学仁,等.核酸对对虾白斑病毒的一个可能的早晚基因的体外切割[J].生物化学与生物物理学报,2000,32(3):253-257[12] 石正丽,Durand Stephanie, Bonami Jean-Robert. 用简并寡核苷酸探针筛选对虾白斑综合症病毒DNA多聚酶基因片断[J].中国病毒学,2000,15(3):3 02-307 黄NFDC8,宋晓玲,于佳,等.杆状病毒性的皮下及造血组织坏死-对虾暴发性流行病的病原和病理学[J].海洋水产研究,1995,16(1): 1-10[2] Yang F, Wang W, Chen R Z, et al. A simple and efficient method for purification of prawn baculovirus DNA[J].Journal of Virological Methods,19 97, 67:1-4[3] Marielle C W van Hulten, Meng-Feng Tsai, Christel A Schipper, et a l. Analysis of a genomic segment of white spot syndrome virus of shrimp containi ng ribonucleotide reductase genes and repeat regions [J]. Journal of General Virology, 2000, 81: 307-316[4] Sambrook J, Fritsch E F, Maniatis T. Molecular Cloning: A Laborator y Manual, 2nd edn [M]. New York: Cold Spring Harbor Laboratory, 1989[5] 吕鸿声.昆虫病毒分子生物学[M].北京:农业科技出版社,1998, 177-27 4[6] Wang Q, Poulos B T, Lightner D V. Protein analysis of geographic is olates of shrimp white spot syndrome virus [J].Arch Virol. 2000, 145(2): 263-274[7] 黄NFDC8,于佳,宋晓玲,等.对虾皮下及造血组织坏死杆状病毒的精细结构、核酸、多肽及血清学研究[J].海洋水产研究,1995, 16(1): 11 -23[8] Nadala E C B Jr, P C Loh. A comparative study of three different is olates of white spot virus [J].Dis. Aquat. Org. 1998, 33:2 31-234[9] Marielle C W van Hulten, Westenberg M, Goodall S D, et al. Identifi cation of two major virion protein genes of white spot syndrome virus of shrimp [J].Virology, 2000, 266)2): 227-236[10] Meng-Feng Tsai, Chu-Fang Lo, Marlelle C W van Hulten, et al, Transcrip tional Analysis of the Ribonucleotide Reductase Genes of Shrimp White Spot Syndr ome virus [J].Virology, 2000, 277)1):92-110[11] 周国瑛,吴建华,沈学仁,等.核酸对对虾白斑病毒的一个可能的早晚基因的体外切割[J].生物化学与生物物理学报,2000,32(3):253-257[12] 石正丽,Durand Stephanie, Bonami Jean-Robert. 用简并寡核苷酸探针筛选对虾白斑综合症病毒DNA多聚酶基因片断[J].中国病毒学,2000,15(3):3 02-307
计量
- 文章访问数: 990
- HTML全文浏览量: 1
- PDF下载量: 497
下载: