MOLECULAR CHARACTERIZATION OF THE sigma C-ENCODING GENE FROM NOVEL DUCK REOVIRUS
文献类型: 外文期刊
第一作者: Yun, T.
作者: Yun, T.;Hua, J.;Yu, B.;Chen, L.;Ni, Z.;Ye, W.;Zhang, C.;Chen, H.
作者机构:
关键词: Novel duck reovirus;sigma C-encoding gene;Expression;Phylogenetic analysis;Genotype
期刊名称:JOURNAL OF ANIMAL AND PLANT SCIENCES ( 影响因子:0.49; 五年影响因子:0.686 )
ISSN: 1018-7081
年卷期: 2015 年 25 卷 3 期
页码:
收录情况: SCI
摘要: We cloned and sequenced the sigma C-encoding gene of a novel duck reovirus (N-DRV) isolate ZJ00M. The sigma C gene is 966 bp long and is encoded by the third ORF of the S1 segment, a small protein of 321 amino acid residues (approximately 34.1 kDa). Expressed sigma C fusion protein in E. coli showed good antigenicity and immunogenicity in a western blotting assay and indirect immunofluorescence assays (IFA). The comparative sequence analyses indicated that N-DRV sigma C shared high identity levels with ARV species (classical MDRV and ARV) and a lower degree of identity with other orthoreovirus counterparts, but the sequence identities were no more than 45 %. As observed in classical MDRV and ARV sigma C protein sequences, some sequence motifs, conserved sequence motifs and/or functional domains were identified in the sequence of N-DRV sigma C. The phylogenetic analysis of sigma C/sigma 1 sequence revealed that N-DRV was different from other orthoreovirus species groups but remained classified into the avian orthoreoviruses along with other ARVs, suggesting that N-DRV and classical MDRVs constitute a separate geno group relative to ARV. These results are important for future studies examining the structure, function and immunogenicity of N-DRV sigma C.
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