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甜菜BTB蛋白家族的挖掘与生物信息学分析
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作者 刘宇 杨巧 +6 位作者 王晓丹 赵春雷 王希 李彦丽 贾海伦 丁广洲 陈丽 《中国糖料》 2021年第4期9-16,共8页
BTB(Broad-complex,tramtrack,and bric-à-brac)蛋白在植物生长发育、抗逆性、蛋白质泛素化和降解、细胞骨架组成、离子通道及细胞周期调控等方面发挥着重要作用。本研究从甜菜基因组大数据中获得了49个包含BTB结构域的序列,并利... BTB(Broad-complex,tramtrack,and bric-à-brac)蛋白在植物生长发育、抗逆性、蛋白质泛素化和降解、细胞骨架组成、离子通道及细胞周期调控等方面发挥着重要作用。本研究从甜菜基因组大数据中获得了49个包含BTB结构域的序列,并利用生物信息学方法对甜菜BTB蛋白家族进行了系统发育、理化性质、基因结构、保守结构域、染色体定位等分析。结果显示:甜菜BTB家族编码的氨基酸大部分都属于酸性氨基酸,氨基酸数目为139~1120个,翻译的蛋白大部分为亲水性蛋白,可分为9个亚家族(Ankyrin、Armadillo、MATH、NPH3、BACK、TAZ、TPR、BTB-only、Other),在染色体上呈不均匀分布,主要分布在第5~7号染色体上;亚细胞定位的结果发现36个BTB蛋白都位于细胞核,其余的位于细胞膜和叶绿体上;49个BTB蛋白的磷酸化位点数目为3~25个,不同蛋白磷酸化位点数目差异很大,49个BTB蛋白的等电点为4.70~9.51,分子量为15848.66~124344.33 Da;甜菜BTB家族不同亚族的基因结构存在较大差异,不同亚族的内含子数量和长度都不同;预测的二级结构和三级结构结果表明,不同亚家族的二级结构以BTB结构域为主,但不同亚族还包含了不同的结构域;三级结构中不同结构的数量虽存在着差异,但都以α螺旋和β折叠为主。本研究通过对甜菜BTB家族的分析,为阐明甜菜BTB家族基因的功能及其机制奠定基础。 展开更多
关键词 甜菜 BTB蛋白家族 生物信息学分 基因
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Cloning and Bioinformatics Analysis of Lfcin Gene of Datong Yak 被引量:2
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作者 裴杰 阎萍 +6 位作者 姬国红 冯瑞林 梁春年 郭宪 曾玉峰 包鹏甲 褚敏 《Agricultural Science & Technology》 CAS 2009年第3期50-54,共5页
[Objective] This study was to clone Lfcin gene from Datong yak, so as to provide reference for applying this gene in feed industry and breeding industry. [Method] Using PCR technology, the lactoferricin(Lfcin)-encodin... [Objective] This study was to clone Lfcin gene from Datong yak, so as to provide reference for applying this gene in feed industry and breeding industry. [Method] Using PCR technology, the lactoferricin(Lfcin)-encoding gene was obtained from genome of Datong yak; then it was cloned into pGEM-T easy vector, and then sequenced; the sequencing results were subsequently aligned with the sequences of dairy cow accessed in GenBank. Moreover, amino acid sequences of Lfcin gene from various species including yak, dairy cow, human and mouse were used for sequence alignment and phylogenesis analysis. [Result] The second exon of lactoferrin(LF) from Datong yak, which is 778 bp in length, was obtained, within which the coding region of Lfcin gene is 75 bp (25 amino acid residues); sequence analysis showed that there is discrepancy of eleven bases between Datong yak and dairy cow; Lfcin proteins from various species shared high homeology, of which that from Datong yak and dairy cow were completely identical; phylogenesis analysis showed that cladogram based on Lfcin was consistent with species evolutionary law. [Conclusion] This study laid a foundation for the prokaryotic or eukaryotic expression of Lfcin gene and further understanding the activity of Lfcin protein. 展开更多
关键词 YAK Lfcin gene CLONE BIOINFORMATICS
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Computational analysis of genetic loci required for amphid structure and functions and their possibly corresponding microRNAs in C. elegans 被引量:1
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作者 胡亚欧 孙阳 +1 位作者 叶波平 王大勇 《Neuroscience Bulletin》 SCIE CAS CSCD 2007年第1期9-20,共12页
Objective To examine the important roles of microRNAs (miRNAs) in regulating amphid structure and function, we performed a computational analysis for the genetic loci required for the sensory perception and their po... Objective To examine the important roles of microRNAs (miRNAs) in regulating amphid structure and function, we performed a computational analysis for the genetic loci required for the sensory perception and their possibly corresponding miRNAs in C. elegans. Methods Total 55 genetic loci required for the amphid structure and function were selected. Sequence alignment was combined with E value evaluation to investigate and identify the possible corresponding miRNAs. Results Total 30 genes among the 55 genetic loci selected have their possible corresponding regulatory miRNA(s), and identified genes participate in the regulation of almost all aspects of amphid structure and function. In addition, our data suggest that both the amphid structure and the amphid functions might be regulated by a series of network signaling pathways. Moreover, the distribution of miRNAs along the 3' untranslated region (UTR) of these 30 genes exhibits different patterns. Conclusion We present the possible miRNA-mediated signaling pathways involved in the regulation of chemosensation and thermosensation by controlling the corresponding sensory neuron and interneuron functions. Our work will be useful for better understanding of the miRNA-mediated control of the chemotaxis and thermotaxis in C. elegans. 展开更多
关键词 microRNA cilia structure sensory neuron INTERNEURON computational analysis C. elegans
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Bioinformatical Analysis on Sequences and Functions of Peroxidase in Arabidopsis
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作者 马亭亭 周宜君 +4 位作者 高飞 余丽 刘冉 刘楠 隋欣 《Agricultural Science & Technology》 CAS 2012年第8期1645-1650,1753,共7页
Plant peroxidase (POD) belongs to multigene family, which not is only one of the important enzymes responsible for the removal of active oxygen radicals, but also participates in a variety of physiological and bioch... Plant peroxidase (POD) belongs to multigene family, which not is only one of the important enzymes responsible for the removal of active oxygen radicals, but also participates in a variety of physiological and biochemical processes and plays a crucial role in the maintenance of plant growth and development. In this study, the structures and functions of proteins encoded by 73 gene of POD family in Arabidopsis were analyzed with bioinformatics method, including the number of amino acids, isoelectric point, transmemberane domains, signal peptides, secondary structures and phosphorylation sites, and the phylogenic trees with and without signal peptides were constructed by using Mega4.0 software, to investigate the structural characteristics. In addition, the structures of AtPER members were analyzed, to reveal the relationship between the structures and functions, thereby providing theoretical basis for the research of plant oxidative stress resistance. 展开更多
关键词 ARABIDOPSIS AtPERs Bioinformatical analysis
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Molecular Detection of Healthiness of Bombyx mori
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作者 刘彬斌 罗峰 +3 位作者 杜周和 吴建梅 陈义安 刘俊凤 《Agricultural Science & Technology》 CAS 2012年第11期2273-2277,2322,共6页
[Objective] The paper was to explore the regularity between heat shock protein expression and the healthiness changes of Bombyx moil materials. [Method] The representative heat shock protein gene Bmhsp24.3 was screene... [Objective] The paper was to explore the regularity between heat shock protein expression and the healthiness changes of Bombyx moil materials. [Method] The representative heat shock protein gene Bmhsp24.3 was screened by bioinfor- matic analysis method, and carried out real-time PCR expression analysis. [Result] The target gene Bmhsp24.3 expressed in different B. mori materials, but the expres- sion level in different materials significantly varied. The relative expression level of the gene had different degrees of changes under different rearing conditions. With the increase of rearing temperature, the gene expression was upregulated. The ma- terials with better healthiness had remarkable increase in expression of target gene, while the materials with poorer healthiness had less increase in expression of target gene. The expression difference of target gene Bmhsp24.3 was exactly consistent with the healthiness of breeds. [Conclusion] The healthiness of materials had rela- tionship with expression of target gene Bmhsp24.3. the higher the expression of tar- get gene Bmhsp24.3 was, the better the healthiness of materials was; conversely, the lower the expression of target gene Bmhsp24.3 was, the poorer the healthiness of materials was. 展开更多
关键词 Bombyx mori Bmhsp24.3 Healthiness Real-time PCR
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Cloning and Sequence Analysis of Sheeppox Virus RPO30 Gene
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作者 赵志荀 吴国华 +3 位作者 颜新敏 李健 朱海霞 张强 《Agricultural Science & Technology》 CAS 2011年第11期1721-1723,1728,共4页
[Objective] The study aimed to clone RPO30 gene from Sheeppox virus (SPPV) and predict the structure and function of the sequence. [Method] RPO30 gene of SPPV was cloned with PCR, linked into pMD18-T simple vector a... [Objective] The study aimed to clone RPO30 gene from Sheeppox virus (SPPV) and predict the structure and function of the sequence. [Method] RPO30 gene of SPPV was cloned with PCR, linked into pMD18-T simple vector and then transformed into E. coli DH5a. In blue-white screen, the white colonies were selected to prepare plasmids. The positive plasmids were selected by double digestion and PCR, and then sequenced. Finally, the structure and function of the sequence obtained were predicted by bioinformatics methods. [Results] The RPO30 gene was successfully obtained; its ORF was 585 bp, encoding 193 amino acids and containing a recognition site for Hind III. Moreover, the SPPV RPO30 gene shared different homologies with the RPO30 gene sequences of other pox virus strains from GenBank database. Further analysis by biological software showed that in RPO30 protein, amino acids 4-12, 18-26, 50- 61, 68- 92 and 176-190 had a high possibility to form the active center, and acting to these regions was likely to inactivate the enzyme encoded by the sequence, thus to inhibit viral replication efficiently. [Conclusion] This study will lay foundation for further study on the structure and function of RPO30. 展开更多
关键词 Sheeppox virus RPO30 gene Sequence analysis BIOINFORMATICS
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Cloning and Identification of A New Na^+/H^+ Antiporter Gene ZmSOS1 in Maize(Zea mays L.)
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作者 赵祥强 《Agricultural Science & Technology》 CAS 2009年第6期57-62,158,共7页
[ Objective] The study aimed to clone and identify Na^+/H^+ antiporter genes in maize, and provided the information for characterizing the function of such genes in abiotic stress tolerance of maize. Method The in ... [ Objective] The study aimed to clone and identify Na^+/H^+ antiporter genes in maize, and provided the information for characterizing the function of such genes in abiotic stress tolerance of maize. Method The in silico cloning, RT-PCR, and bioinformatics analysis were used in this study. Result By in sifico cloning, a plasma membrane Na^+/H^+ antiporter gene, named as ZmSOS1 (EMBL accession No. BN001309), was cloned from maize ( Zea mays L. ). ZmSOS1 has an open reading frame (ORF) of 3 411 bp which encoded a protein of 1 136 amino acids. By multiple sequence alignment analysis, it showed the predicated peptide of ZmSOS1 were 61% and 82% identities in amino acids to the plasma membrane Na^+/H^+ antiporter AtSOS1 and OsSOS1, respectively. The RT-PCR analysis revealed that ZmSOS1 could be significantly up-regulated by salt stress, which indicated ZmSOS1 might play a role in salt tolerance of maize. Conclusion ZmSOS1 is a putative plasma membrane Na^+/H^+ antiporter gene and may play a role in abiotic stress tolerance of maize. 展开更多
关键词 Zea mays Na^+/H^+ antiporter In silico cloning Bioinformatics analysis
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Identification of a Novel snoRNA Gene in Arabidopsis thaliana L.
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作者 徐玲 胡娜 +1 位作者 刘仁荣 裘雪梅 《Agricultural Science & Technology》 CAS 2009年第4期47-49,153,共4页
[ Objective] To identify a novel snoRNA gene in Arabidopsis thalianan. [ Method ] Genome sequence of Arabidopsis thalianan was screened by using bioinformatics methods, and the sequence structure, organization form an... [ Objective] To identify a novel snoRNA gene in Arabidopsis thalianan. [ Method ] Genome sequence of Arabidopsis thalianan was screened by using bioinformatics methods, and the sequence structure, organization form and function of typical candidate gene were analyzed. [ Result] The identified snR95 box H/ACA snoRNA had conservative component and structural features of box C/D snoRNA family, possessed two more than 10 nt long rRNA antisense elements. The result revealed that the novel snoRNA is a partial counterpart of the rice Z270, named box C/D snoRNA -AthZ270. [ Conclusion ] Z270 snoRNA in Arabidopsis thalianan has different function with common snoRNA. 展开更多
关键词 Arabidopsis thalianan SNORNA AthZ270
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cDNA Cloning, Bioinformatic and Tissue-specific Expression Analysis of Porcine JARID1C Gene
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作者 伊璐 郝振华 +3 位作者 杨彤彤 王邵兵 邢宝松 徐银学 《Journal of Genetics and Genomics》 SCIE CAS CSCD 北大核心 2007年第12期1088-1096,共9页
Jumonji, AT-rich interactive domain 1C (JARID1C) protein belongs to the highly conserved ARID protein family, which is involved in chromatin remodeling and transcriptional regulation during cell growth, differentiat... Jumonji, AT-rich interactive domain 1C (JARID1C) protein belongs to the highly conserved ARID protein family, which is involved in chromatin remodeling and transcriptional regulation during cell growth, differentiation, and development. In humans, this gene plays a vital role in normal brain development and function. Using an in silico approach in combination with 5' rapid amplification of cDNA ends (5' RACE), the full-length cDNA of JARIDIC (GenBank accession No. EF139241) from porcine ovary, which contains 5,908 bp nucleotides, with an open reading frame (ORF) of 4,548 bp, has been cloned. The putative porcine JARID 1C protein, which is located in the nucleus, encodes 1,516 amino acids with a molecular weight of 170 kDa and a pI of 5.44. Bioinformatic prediction indicates that the protein contains several conserved domains: a JmjN domain, an ARID domain, a JmjC domain, a C5HC2 zinc finger domain, and a PHD zinc finger domain. Similarity comparisons for nucleic and amino acid sequences reveal that the porcine JARID1C protein shares a high identity with its dog, mouse, rat, and human counterparts. The phylogenetic tree of the JARID1 subfamily proteins has been constructed to reveal the evolutionary relationship of various species. Real-time PCR analysis shows that the JARIDIC gene is expressed in various tissues, but at different levels. The expression levels of this gene are higher in the brain and gonad than in other tissues, suggesting that the JARID1C protein plays a role in porcine brain and gonad functions. 展开更多
关键词 PIG JARID1C gene cDNA cloning bioinformatic analysis gene expression
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Computational analysis of genetic loci required for synapse structure and function and their corresponding microRNAs in C. elegans
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作者 孙阳 赵雅妮 王大勇 《Neuroscience Bulletin》 SCIE CAS CSCD 2006年第6期339-349,共11页
Objective To elucidate the important functions of microRNAs (miRNAs) in regulating synaptic assembly and function, we performed a computational analysis for the genetic loci required for the synaptic structure and f... Objective To elucidate the important functions of microRNAs (miRNAs) in regulating synaptic assembly and function, we performed a computational analysis for the genetic loci required for the synaptic structure and function and their corresponding miRNAs in C. elegans. Methods Total 198 genetic loci required for the synaptic structure and function were selected. Sequence alignment was combined with E value evaluation to investigate and identify the possible corresponding miRNAs. Results Total 163 genes among the 198 genetic loci selected have their possibly corresponding regulatory miRNA (s), which covered most of the important genetic loci required for the synaptic structure and function. Moreover, only 22 genes among the analyzed 38 genetic loci encoding synaptic proteins have more possibility to under the control of non-coding RNA genes. In addition, the distribution of miRNAs along the 3' untranslated region (UTR) of these 22 genes exhibits different patterns. Condusion Here we provide the computational screen and analysis results for the genetic loci required for synaptic structure and function and their possible corresponding miRNAs. These data will be useful for the further attempt to systematically determine the roles of miRNAs in synaptic assembly and function regulation in worms. 展开更多
关键词 MIRNA SYNAPSE genetic loci C. elegans computational analysis
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Cloning and Expression Analysis of Arginine Decarboxylase Gene MiADC from Mango 被引量:5
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作者 LIU Rong HUANG Hai +1 位作者 HAN Shu-quan FAN Jian-xin 《Agricultural Science & Technology》 CAS 2018年第2期9-16,共8页
Arginine decarboxylase (ADC) plays an important role in polyamine biosynthesis in plants. In order to study the structure and expression ofADC gene in mango, an arginine decarboxylase gene ADC, named as MiADC, was c... Arginine decarboxylase (ADC) plays an important role in polyamine biosynthesis in plants. In order to study the structure and expression ofADC gene in mango, an arginine decarboxylase gene ADC, named as MiADC, was cloned and isolated from the tender leaves of mango using RACE technology, and the expression of MiADC was analyzed by qRT-PCR based on the cDNA sequence of MiADC gene in this study. The results showed that the full length of MiADC was 3 089 bp containing a 575 bp 5'-UTR, a 2 178 bp ORF with file initial codon and the terminal codon, a 311 bp 3'-UTR and a 25 bp poly (A); and file MiADC had no intron. The homologous analysis in the NCBI demonstrated that the sequence of MiADC had the highest similarity at 78% to Poncirus trifoliata arginine decarboxylase gene (HQ008237.1), and the prediction protein also had the highest homology at 78% level with Poncirus trifoliata arginine decarboxylase (AEE99192.1) . Phylogenetic tree analysis revealed that the MiADC in mango was clustered in the same clade as the arginine decarboxylase from Poncirus trifoliate. Expression analysis showed that the MiADC gene was expressed in roots, stems, leaves, flowers, fruitlet, ripe fruit, and the transcriptional level of the cloned gene was affected obviously by low temperature, which proved that the MiADC gene may be a low temperature stress responding gene. 展开更多
关键词 MANGO MiADC gene RACE Bioinformatics analysis
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Bioinformatic Analysis of BBTV Satellite DNA in Hainan 被引量:1
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作者 Nai-tong Yu Tuan-cheng Feng Yu-liang Zhang Jian-hua Wang Zhi-xin Liu 《Virologica Sinica》 SCIE CAS CSCD 2011年第4期279-284,共6页
Banana bunchy top virus (BBTV),family Nanaviridae,genus Babuvirus,is a single stranded DNA virus (ssDNA) that causes banana bunchy top disease (BBTD) in banana plants.It is the most common and most destructive of all ... Banana bunchy top virus (BBTV),family Nanaviridae,genus Babuvirus,is a single stranded DNA virus (ssDNA) that causes banana bunchy top disease (BBTD) in banana plants.It is the most common and most destructive of all viruses in these plants and is widespread throughout the Asia-Pacific region.In this study we isolated,cloned and sequenced a BBTV sample from Hainan Island,China.The results from sequencing and bioinformatics analysis indicate this isolate represents a satellite DNA component with 12 DNA sequences motifs.We also predicted the physical and chemical properties,structure,signal peptide,phosphorylation,secondary structure,tertiary structure and functional domains of its encoding protein,and compare them with the corresponding quantities in the replication initiation protein of BBTV DNA1. 展开更多
关键词 Banana bunchy top virus SATELLITE PREDICTION
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Preoperatively molecular staging with CM10 ProteinChip and SELDI-TOF-MS for colorectal cancer patients 被引量:14
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作者 XU Wen-hong CHEN Yi-ding +5 位作者 HU Yue YU Jie-kai WU Xian-guo JIANG Tie-jun ZHENG Shu ZHANG Su-zhan 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2006年第3期235-240,共6页
Objectives: To detect the serum proteomic patterns by using SELDI-TOF-MS (surface enhanced laser desorption/ ionization-time of flight-mass spectrometry) technology and CM10 ProteinChip in colorectal cancer (CRC)... Objectives: To detect the serum proteomic patterns by using SELDI-TOF-MS (surface enhanced laser desorption/ ionization-time of flight-mass spectrometry) technology and CM10 ProteinChip in colorectal cancer (CRC) patients, and to evaluate the significance of the proteomic patterns in the tumour staging of colorectal cancer. Methods: SELDI-TOF-MS and CM10 ProteinChip were used to detect the serum proteomic patterns of 76 patients with colorectal cancer, among them, 10 Stage Ⅰ, 19 Stage Ⅱ, 16 Stage Ⅲ and 31 Stage Ⅳ samples. Different stage models were developed and validated by support vector machines, disctiminant analysis and time-sequence analysis. Results: The Model Ⅰ formed by 6 protein peaks (m/z: 2759.58, 2964.66, 2048.01, 4795.90, 4139.77 and 37761.60) could be used to distinguish local CRC patients (Stage Ⅰ and Stage Ⅱ) from regional CRC patients (Stage Ⅲ) with an accuracy of 86.67% (39/45). The Model Ⅱ formed by 3 protein peaks (m/z: 6885.30, 2058.32 and 8567,75) could be used to distinguish locoregional CRC patients (Stage Ⅰ, Stage Ⅱ and Stage Ⅲ) from systematic CRC patients (Stage IV) With an accuracy of 75.00% (57/76). The Model Ⅲ could distinguish Stage Ⅰ from Stage Ⅱ with an accuracy of 86.21% (25/29). The Model Ⅳ could distinguish Stage Ⅰ from Stage Ⅲ with accuracy of 84.62% (22/26). The Model Ⅴ could distinguish Stage Ⅱ from Stage Ⅲ with accuracy of 85.71% (30/35). The Model Ⅵ could distinguish Stage Ⅱ from Stage Ⅳ with accuracy of 80.00% (40/50). The Model Ⅶ could distinguish Stage Ⅲ from Stage Ⅳ with accuracy of 78.72% (37/47). Different stage groups could be distinguished by the two-dimensional scattered spots figure obviously. Conclusion: This method showed great success in preoperatively determining the colorectal cancer stage of patients. 展开更多
关键词 Colorectal cancer SELDI-TOF-MS (surface enhanced laser desorption/ionization-time of flight-mass spectrometry) STAGING Bio-informatics
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Network Pharmacology-based Analysis on the Molecular Biological Mechanisms of Xin Hui Tong Formula in Coronary Heart Disease Treatment 被引量:4
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作者 WU Hua-Ying ZHANG Chen +5 位作者 WANG Zhao-Hua ZHANG Shi-Ying LI Jing LI Feng HUANG Hui-Yong LI Liang 《Digital Chinese Medicine》 2019年第2期86-96,共11页
Objective To investigate the potential molecular mechanism of Xin Hui Tong Formula (XHTF) in the treatment of coronary heart disease (CHD) by using network pharmacology and bioinformatics. Methods The targets network ... Objective To investigate the potential molecular mechanism of Xin Hui Tong Formula (XHTF) in the treatment of coronary heart disease (CHD) by using network pharmacology and bioinformatics. Methods The targets network of CHD was constructed through Therapeutic Targets Database (TTD) and Drugbank database;The XHTF pharmacodynamic molecule-targets network and the XHTF pharmacodynamic molecule-CHD targets network were explored by the traditional Chinese medicine systems pharmacology database and analysis platform (TCMSP). And the multi-targets mechanism and molecular regulation network of XHTF in the treatment of CHD were explored from multiple perspectives by Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) database pathway enrichment analysis. Results A total of 88 CHD targets were screened out through the Therapeutic Targets and the Drugbank database. 393 compounds and corresponding 205 drug targets of XHTF were retrieved from TCMSP. A total of 13 known targets directly related to the development of CHD were retrieved from the disease-related databases: TP53, MAPK14, NFKB1, HSPA5, PLG, PTGS2, ADRB1, NOS2, CYP3A4, GRIA2, CYP2A6, GRIA1, PTGS1. XHTF also contained 118 drug targets that directly interact with CHD targets. GO enrichment analysis showed that the biological processes of 13 direct targets proteins were found to be mainly enriched in response to drug, cellular response to biotic stimulus, long-chain fatty acid metabolic process, fatty acid metabolic process and regulation of blood pressure. KEGG pathway enrichment analysis found that XHTF participated in the CHD pathological process mainly through retrograde endocannabinoid signaling, regulation of lipolysis in adipocytes, cAMP signaling pathway, chemical carcinogenesis and other pathways. Conclusions XHTF plays a role in the treatment of CHD through multiple targets and multiple pathways, and provides a scientific basis for the theory of "virtual standard" in the treatment of CHD. 展开更多
关键词 Xin Hui Tong Formula (XHTF) Coronary heart disease Network pharmacology Network analysis BIOINFORMATICS
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Identification and bioinformatics analysis of micro RNAs from the sporophyte and gametophyte of Pyropia haitanensis
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作者 黄爱优 王广策 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2016年第3期451-459,共9页
Pyropia haitanensis(T.J.Chang et B.F.Zheng) N.Kikuchi et M.Miyata( Porphyra haitanensis) is an economically important genus that is cultured widely in China.P.haitanensis is cultured on a larger scale than Pyropia yez... Pyropia haitanensis(T.J.Chang et B.F.Zheng) N.Kikuchi et M.Miyata( Porphyra haitanensis) is an economically important genus that is cultured widely in China.P.haitanensis is cultured on a larger scale than Pyropia yezoensis,making up an important part of the total production of cultivated Pyropia in China.However,the majority of molecular mechanisms underlying the physiological processes of P.haitanensis remain unknown.P.haitanensis could utilize inorganic carbon and the sporophytes of P.haitanensis might possess a PCK-type C 4-like carbon-fixation pathway.To identify micro RNAs and their probable roles in sporophyte and gametophyte development,we constructed and sequenced small RNA libraries from sporophytes and gametophytes of P.haitanensis.Five micro RNAs were identified that shared no sequence homology with known micro RNAs.Our results indicated that P.haitanensis might posses a complex s RNA processing system in which the novel micro RNAs act as important regulators of the development of different generations of P.haitanensis. 展开更多
关键词 MICRORNA Pyropia haitanensis small RNA SPOROPHYTE GAMETOPHYTE
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Bioinformatic Analysis of Structural Proteins of Paramyxovirus Tianjin Strain
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作者 Li-ying SHI Mei LI Xiao-mian LI Li-jun YUAN Qing WANG 《Virologica Sinica》 SCIE CAS CSCD 2008年第4期279-286,共8页
The amino acid sequences of the NP, P, M, F, HN and L proteins of the paramyxovirus Tianjin strain were analyzed by using the bioinformatics methods. Phylogenetic analysis based on 6 structural proteins among the Tian... The amino acid sequences of the NP, P, M, F, HN and L proteins of the paramyxovirus Tianjin strain were analyzed by using the bioinformatics methods. Phylogenetic analysis based on 6 structural proteins among the Tianjin strain and 25 paramyxoviruses showed that the Tianjin strain belonged to the genus Respirovirus, in the subfamily Paramyxovirinae, and was most closely related to Sendai virus (SeV). Phylogenetic analysis with 14 known SeVs showed that Tianjin strain represented a new evolutionary lineage. Similarities comparisons indicated that Tianjin strain P protein was poorly conserved, sharing only 78.7% - 91.9% amino acid identity with the known SeVs, while the L protein was the most conserved, having 96.0% - 98.0% amino acid identity with the known SeVs. Alignments of amino acid sequences of 6 structural proteins clearly showed that Tianjin strain possessed many unique amino acid substitutions in their protein sequences, 15 in NP, 29 in P, 6 in M, 13 in F, 18 in HN, and 29 in L. These results revealed that Tianjin strain was most likely a new genotype of SeV. The presence of unique amino acid substitutions suggests that Tianjin strain maybe has a significant difference in biological, pathological, immunological, or epidemiological characteristics from the known SeVs. 展开更多
关键词 Sendai virus Structural proteins Bioinformatic analysis
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Bioinformatics Analysis of Upland Cotton Gene GhCRE1
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作者 ORNELLA MUSANIWABO Josee XU Min-hui +3 位作者 ZHOU Chi CHEN Yan-chao RAO Li-qun WANG Qi-ming 《Agricultural Science & Technology》 CAS 2021年第4期51-58,共8页
Cytokinin plays a very important role in plants growth and development,and CRE1 has been identified as a cytokinin receptor.However,the biological function of CRE1 in cotton remains unclear.In this paper,GhCRE1 gene w... Cytokinin plays a very important role in plants growth and development,and CRE1 has been identified as a cytokinin receptor.However,the biological function of CRE1 in cotton remains unclear.In this paper,GhCRE1 gene was cloned and its sequence was analyzed by bioinformatics.The results revealed that GhCRE1 had 11 exons and 10 introns,and its molecular weight,theoretical isoelectric point(pI)and number of amino acids differed from those of the homologous gene in Theobroma cacao and Arabidopsis thaliana,with three different protein domains.15 unidentified proteins were found in potential interaction with CRE1 protein and 2 phosphorylation sites on CRE1 protein sequence were predicted by mutiple bioinformatics websites.Additionally,8 cis-acting regulatory elements were detected on CRE1 promoter sequence,and found related to light signal and hormone.These results were conducive to unfolding the function of GhCRE1 in upland cotton. 展开更多
关键词 Bioinformatics analysis Cytokinin receptor GENE PROTEIN PROMOTER
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Bioinformatics Analysis of VOZ Gene Family in Populus trichocarpa
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作者 YANG Cai-hong GONG Yuan-yong YAN Fei 《Agricultural Science & Technology》 CAS 2022年第4期45-53,共9页
To explore the biological characteristics of Vascular plant One-Zinc finger(VOZ)gene family in Populus trichocarpa,this paper used bioinformatics to analyze the nucleotide sequences and protein sequences of four membe... To explore the biological characteristics of Vascular plant One-Zinc finger(VOZ)gene family in Populus trichocarpa,this paper used bioinformatics to analyze the nucleotide sequences and protein sequences of four members of VOZ gene family of P.trichocarpa.The results showed that the four PtVOZ genes of P.trichocarpa were evenly distributed on four chromosomes.The length and molecular weight of the encoded protein were almost the same,and the subcellular localization was located in the nucleus,belonging to the unstable acidic hydrophilic non-aliphatic soluble protein.The gene structures were all in the patterns of 4 exons and 3 introns.The proportion order of PtVOZ transcription factor secondary structure components was random coil>αhelix>extended strand>βsheets,and the tertiary structure was very similar in spatial conformation.The phylogenetic tree analysis showed that P.trichocarpa was more closely related to VOZ transcription factors of dicotyledons.The four PtVOZ genes of P.trichocarpa were expressed in seedlings and different tissues,but there were differences in the expression intensity.This study provided a necessary theoretical basis for further exploring the molecular biological function of PtVOZ genes. 展开更多
关键词 Populus trichocarpa VOZ gene family Transcription factor Bioinformatics analysis
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Identification of key genes and related pathways in hepatocarcinoma usingbioinformatics analysis
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作者 Xiao-Dong Wang Dan Chen 《TMR Cancer》 2018年第2期23-29,共7页
Objective Various treatments have greatly reduced the mortality of hepatocellular carcinoma (HCC). However, few therapies could be performed in advanced HCC. Therefore, understanding the characteristics of HCC at th... Objective Various treatments have greatly reduced the mortality of hepatocellular carcinoma (HCC). However, few therapies could be performed in advanced HCC. Therefore, understanding the characteristics of HCC at the level of the whole transcriptome can help prevent the progression of HCC. Methods: The aim of this study was to identify differently expressed genes and potent pathways between normal liver and HCC tissues. The gene expression profiles of GSE104627 were downloaded from Gene Expression Omnibus database. The Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses were performed and protein-protein interaction network of the differentially expressed genes were constructed by Cytoscape software. Results: In total, 880 differently expressed genes were identified between normal and tumor tissues, including 554 up-regulated genes and 326 down-regulated genes. Gene Ontology analysis results showed that the up-regulated genes were significantly enriched in establishment of RNA localization, nucleic acid transport, RNA transport, RNA localization and nucleobase, nucleoside, nucleotide and nucleic acid transport. Kyoto Encyclopedia of Genes and Genomes pathway analysis showed the up-regulated genes were enriched in axon guidance, dorso-ventral axis formation and pathways in cancer. The top 10 hub genes were identified from the protein - protein interaction network, and sub-networks revealed these genes were involved in significant pathways, including G protein-coupled receptors signaling pathway, signaling pathway via MAPK and extracellular matrix organization. Conclusion: The present study described the differently expressed genes between normal tissues and HCC tissues from the level of gene transcription. The possible signaling pathways involved in the development of HCC and related molecules involved were analyzed. However, further laboratory and clinical validation is still needed. 展开更多
关键词 HEPATOCARCINOMA Differently expressed genes Bioinformatics analysis
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Molecular cloning and transcriptional analysis of a NPY receptor-like in common Chinese cuttlefish Sepiella japonica
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作者 YANG Jingwen XU Yuchao +5 位作者 XU Ke PING Hongling SHI Huilai LU Zhenming WU Changwen WANG Tianming 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2018年第3期892-904,共13页
Neuropeptide Y(NPY) has a pivotal role in the regulation of many physiological processes. In this study, the gene encoding a NPY receptor-like from the common Chinese cuttlefish Sepiella japonica( SjNPYR-like) was ide... Neuropeptide Y(NPY) has a pivotal role in the regulation of many physiological processes. In this study, the gene encoding a NPY receptor-like from the common Chinese cuttlefish Sepiella japonica( SjNPYR-like) was identified and characterized. The full-length SjNPYR-like cDNA was cloned containing a 492-bp of 5′ untranslated region(UTR), 1 182 bp open reading frame(ORF) encoding a protein of 393 amino acid residues, and 228 bp of 3′ UTR. The putative protein was predicted to have a molecular weight of 45.54 kDa and an isoelectric point(pI) of 8.13. By informatic analyses, SjNPYR-like was identified as belonging to the class A G protein coupled receptor(GPCR) family(the rhodopsin-type). The amino acid sequence contained 12 potential phosphorylation sites and five predicted N-linked glycosylation sites. Multiple sequence alignment and 3D structure modeling were conducted to clarify SjNPYR bioinformatics characteristics. Phylogenetic analysis identifies it as an NPYR with identity of 33% to Lymnaea stagnalis NPFR. Transmembrane properties of SjNPYR-like were demonstrated in vitro using HEK293 cells and the p EGFP-N1 plasmid. Relative quantifi cation of SjNPYR-like mRNA level confi rmed a high level expression and broad distribution of SjNPYR-like in various tissues of female S. japonica. In addition, the transcriptional profile of SjNPYR-like in the brain, liver, and ovary during gonadal development was analyzed. The results provide basic understanding on the molecular characteristics of SjNPYR-like and its potentially physical functions. 展开更多
关键词 Sepiella japonica NPY receptor-like growth reproduction gene expression
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