盘基网柄菌DdLIS1蛋白生物信息学分析
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  • 英文篇名:Bioinformatics Analysis of DdLIS1 Protein in Dictyostelium discoideum
  • 作者:郭倩楠 ; 薛楠 ; 刘坚 ; 徐存拴 ; 薛德明
  • 英文作者:Guo Qiannan;Xue Nan;Liu Jian;Xu Cunshuan;Xue Deming;College of Life Science, Henan Normal University;Affiliated Middle School of Henan Normal University;Department of Molecular and Cellular Biology, Baylor College of Medicine;Henan Province-Ministry of Science and Technology Co-established State Key Laboratory Cultivation Base for Cell Differentiation Regulation;
  • 关键词:盘基网柄菌 ; DdLIS1 ; 生物信息学分析
  • 英文关键词:Dictyostelium discoideum;;DdLIS1;;Bioinformatics analysis
  • 中文刊名:GXNB
  • 英文刊名:Genomics and Applied Biology
  • 机构:河南师范大学生命科学学院;河南师范大学附属中学;贝勒医学院分子细胞生物系;河南省-科技部共建细胞分化调控国家重点实验室培育基地;
  • 出版日期:2019-01-25
  • 出版单位:基因组学与应用生物学
  • 年:2019
  • 期:v.38
  • 基金:河南省国际科技合作计划项目(No.152102410038);; 河南省基础与前沿技术研究计划项目(No.13230041-0135)共同资助
  • 语种:中文;
  • 页:GXNB201901033
  • 页数:7
  • CN:01
  • ISSN:45-1369/Q
  • 分类号:192-198
摘要
LIS1蛋白是一种与人类无脑回疾病以及细胞癌变相关的重要蛋白。对盘基网柄菌DdLIS1进行生物信息学分析,探究盘基网柄菌能否作为研究人类无脑回疾病及细胞癌变机制的模型。现从NCBI中的Genank找到盘基网柄菌DdLIS1的氨基酸序列,随后进行blastp找到模式生物中相似序列,利用理化性分析网站ProtScale、ProtParam分析DdLIS1的理化性质,通过NCBI中的保守结构域库(CDD)分析DdLIS1的保守结构域,使用MEGA6.0并选用邻位连接法构建系统进化树,分别使用PredictProtein、SWISS-MODEL网站预测Dd LIS1蛋白的二级结构、三维结构。结果得出DdLIS1蛋白全长为419,属于亲水性蛋白,有7个保守结构域,属于WD40家族,与人类和小鼠的氨基酸序列相似性为72%。二级结构中β折叠所占比例最高,为49.40%,α螺旋、随机卷曲分别占该蛋白7.16%、43.44%,与三级结构一致。以上结果说明DdLIS1与LIS1高度相似,有助于盘基网柄菌能够作为研究人类无脑回疾病以及细胞癌变机制的模型。
        LIS1 protein is an important protein related to human lissencephaly disease and cell canceration. This study carried out the bioinformatics analysis of DdLIS1, and explored whether Dictyostelium discoideum could be used as a model for the study of human lissencephaly disease and cell canceration. The amino acid sequence of Dictyostelium discoideum DdLIS1 was obtained from Genank in NCBI. Then, the similar sequences of model organisms were found by blastp. Physicochemical properties of DdLIS1 were analyzed by the websites of ProtScale and ProtParam. The conserved domain database(CDD) in NCBI was used to analyze the conserved domain of DdLIS1. The phylogenetic tree was constructed by the orthotopic linkage method of MEGA6.0. PredictProtein and SWISS-MODEL were respectively used to predict the secondary and the tertiary structure of DdLIS1. The results showed that the full length of DdLIS1 protein was 419, which belonged to the hydrophilic protein and had seven conserved domains belonging to the WD40 family. The similarity of DdLIS1 with LIS1 of Homo sapiens and Mus musculus was 72%. In DdLIS1, the proportion of β-fold in the secondary structure was the highest, 49.40%,α-helix and the random curl respectively accounted for 7.16% and 43.44%, which was consistent with the tertiary structure. These results indicate that DdLIS1 might be highly similar to LIS1, and it could be beneficial to study the human lissencephaly disease and cell canceration.
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