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Construction of human Fab library and screening of a single-domain antibody of amyloid-beta 42 oligomers
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作者 Zuanning Yuan Minge Du +1 位作者 Yiwen Chen Fei Dou 《Neural Regeneration Research》 SCIE CAS CSCD 2013年第33期3107-3115,共9页
Screening humanized antibodies from a human Fab phage display library is an effective and quick method to obtain beta-amyloid oligomers. Thus, the present study prepared amyloid-beta 42 oli- gomers and constructed a h... Screening humanized antibodies from a human Fab phage display library is an effective and quick method to obtain beta-amyloid oligomers. Thus, the present study prepared amyloid-beta 42 oli- gomers and constructed a have human Fab phage display library based on blood samples from six healthy people. After three rounds of biopanning in vitro, a human single-domain antibody that spe- cifically recognized amyloid-beta 42 oligomers was identified. Western blot and enzyme-linked im- munosorbent assay demonstrated this antibody bound specifically to human amyloid-beta 42 tetramer and nonamer, but not the monomer or high molecular weight oligomers. This study suc- cessfully constructed a human phage display library and screened a single-domain antibody that specifically recognized amyloid-beta 42 oligomers. 展开更多
关键词 neural regeneration AMYLOID-BETA Alzheimer's disease OLIGOMER single-domain antibody phagedisplay antibody library construction ALPHA-SYNUCLEIN Parkinson's disease humanized antibody immunotherapy grants-supported paper NEUROREGENERATION
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Based on the Construction of University Library and the Evaluation of Space Service Quality
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作者 Wan Ying 《Journal of Contemporary Educational Research》 2021年第1期65-69,共5页
In order to strengthen the construction of university library,promote the sustainable development of university library,and provide a good library space environment for university students,this paper expounds the qual... In order to strengthen the construction of university library,promote the sustainable development of university library,and provide a good library space environment for university students,this paper expounds the quality evaluation of university library by establishing the evaluation index of space service quality,and puts forward the ways to improve the service quality of University Library for reference. 展开更多
关键词 Colleges and universities library construction Space services Quality evaluation
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The plight and Countermeasures brought to the constructions of library literature by effect of college enrollment
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作者 Xiaoyan Fan Yu Chen 《International Journal of Technology Management》 2013年第8期35-37,共3页
This text introduces the concept of local literature and collection range, explains the significance of literature collection and explores building programs of local university library. Currently, university library g... This text introduces the concept of local literature and collection range, explains the significance of literature collection and explores building programs of local university library. Currently, university library generally put a strong emphasis on collection of academic literature, but has less attention on literature collections which reflect the situation of university location, or even worse, simply don' t launch business in this field. For the university library, it is a great loss of literature information resources, as well as a great regret of library work. First, what is the local literature? It is literature data which document a region' s past and present issues like politics, economy, culture, education, history, geography and other aspects like important characters and events, customs, folklore etc. 展开更多
关键词 college enrollment quality of education library construction
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Development in theoretical study and practice of library legislation in China
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作者 LI Guoxin XU Shan +1 位作者 LIU Xuan WANG Xuan 《Chinese Journal of Library and Information Science》 2008年第2期16-30,共15页
One of the most outstanding characteristics of library legislation in China is that theoretical research and legislative practice are mutually reinforcing, making important issues and basic rules and regulations close... One of the most outstanding characteristics of library legislation in China is that theoretical research and legislative practice are mutually reinforcing, making important issues and basic rules and regulations closely associated with legislation and the research focus. A national library law is currently being enacted while several local library legislations have already seen fruitful results. In the enactment of 'Regulations for the Protection of Information Network Dissemination Rights', the library professional participated for the first time in enacting a national copyright law, which led to unprecedented flourishing of library activities and copyright studies. The promulgation of another legal framework,'Government Information Disclosure Regulations' further advanced the research on related issues and pushed forward government information services in public libraries in the same way. A new landmark for library legislation in recent years is the promulgation of'Guidelines for Land Utilization for Public Library Construction' and 'Public Library Construction Standards', while the framing of 'Rules of Professional Ethics for Librarians in China(On trial)' and the 'Library Service Manifesto' give indication that a framework of self-disciplinary measures of library professionals is established. 展开更多
关键词 library legal construction Information network dissemination right Government information disclosure Public library Construction Standards Professional self-disciplined standards
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Construction and screening of suppression subtractive hybridization library of renal cell carcinoma
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作者 张勇 《外科研究与新技术》 2003年第2期114-114,共1页
Objective To construct and screen the suppression subtractive hybridization (SSH) library of human renal cell carcinoma (RCC). Methods Poly A+ RNA was isolated from RCC lines 786-O(tester) and renal cell(RC) lines HK-... Objective To construct and screen the suppression subtractive hybridization (SSH) library of human renal cell carcinoma (RCC). Methods Poly A+ RNA was isolated from RCC lines 786-O(tester) and renal cell(RC) lines HK-2 ( driver), respectiely. SSH procedure was performed according to the protocol of the PCR-Select cDNA Subtraction Kit ( Clontech), and PCR products were cloned into pT-Adv vector and transformed E. coli TOP10F’. All positive clones picked out were digested and some of which were sequenced. Results The SSH library contained 362 clones with SSH cDNA fragments distributed mainly from 0.3 to 0.9 kb. Among 50 clones sequenced randomly,2 represented unknown genes and the other 48 derived from 36 known genes. Conclusion The quality of the SSH library of human RCC is reliable and is construction is the basis for further screening differentially expressed genes of RCC. 6 refs,4 figs, 1 tab. 展开更多
关键词 of Construction and screening of suppression subtractive hybridization library of renal cell carcinoma
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Isolation, Expression Characteristics and Chromosomal Locations of Three cDNA Fragments Under Salt Stress in Rice 被引量:3
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作者 钱前 柳原城司 +3 位作者 滕胜 曾大力 朱立煌 陈受宜 《Acta Botanica Sinica》 CSCD 2003年第9期1090-1095,共6页
cDNA libraries were constructed from the leaves of a rice (Oryza sativa L.) salt tolerancevariety Tesan抋i 2 growing in solutions with 150 mmol/L NaCl for 3 h or without salt stress. Three salt-responsive cDNA clones,... cDNA libraries were constructed from the leaves of a rice (Oryza sativa L.) salt tolerancevariety Tesan抋i 2 growing in solutions with 150 mmol/L NaCl for 3 h or without salt stress. Three salt-responsive cDNA clones, Ts1, Ts2 and Ts3 were isolated by differential screening. Northern blottinganalysis showed that the transcription levels of Ts1 and Ts2 increased within 3 h salt stress and kept onincreasing within 24 h, while the transcription level of Ts3 reached its peak within 3 h. Sequence analysisindicated that there were no homologies between the three cDNA clones and any known gene. The threecDNA clones were mapped using a doubled haploid (DH) population derived from an indica variety ZYQ8,which was a salt tolerance parent of Tesan抋i 2, with a japonica variety JX17. Ts1, Ts2 and Ts3 werelocated on chromosomes 1, 3 and 7, respectively. It was noted that Ts1, Ts2, and Ts3 were in or near theregions of major or minor salt tolerance quantitative trait loci (QTLs), which were mapped in the same DHpopulation in a parallel study. 展开更多
关键词 RICE differential screening salt stress response mappingAbstract: cDNA libraries were constructed from the leaves of a rice (Oryza sativa L.) salttolerance variety Tesan’ai 2 growing in solutions with 150 mmol/L NaCl for 3 h or without s
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Sample Collection,DNA Extraction,and Library Construction Protocols of the Human Microbiome Studies in the International Human Phenome Project 被引量:1
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作者 Yetong Wang Ruyi Zhang +8 位作者 Yanni Pu Danqi Wang Yanren Wang Xuemei Wu Yujie Pan Chen Luo Guoping Zhao Zhexue Quan Yan Zheng 《Phenomics》 2023年第3期300-308,共9页
The human microbiome plays a crucial role in human health.In the past decade,advances in high-throughput sequencing technologies and analytical software have significantly improved our knowledge of the human microbiom... The human microbiome plays a crucial role in human health.In the past decade,advances in high-throughput sequencing technologies and analytical software have significantly improved our knowledge of the human microbiome.However,most studies concerning the human microbiome did not provide repeatable protocols to guide the sample collection,handling,and processing procedures,which impedes obtaining valid and timely microbial taxonomic and functional results.This protocol provides detailed operation methods of human microbial sample collection,DNA extraction,and library construction for both the amplicon sequencing-based measurements of the microbial samples from the human nasal cavity,oral cavity,and skin,as well as the shotgun metagenomic sequencing-based measurements of the human stool samples among adult par-ticipants.This study intends to develop practical procedure standards to improve the reproducibility of microbiota profiling of human samples. 展开更多
关键词 Sample collection DNA extraction library construction Human microbiome
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Functional Metagenomics from the Rumen Environment—A Review
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作者 Wondimagegne Bekele Abiy Zegeye +1 位作者 Addis Simachew Getnet Assefa 《Advances in Bioscience and Biotechnology》 2021年第5期125-141,共17页
<div style="text-align:justify;"> <span style="font-family:Verdana;">The rumen microbiome plays an essential role in ruminant physiology, nutrition and pathology as well as host immunit... <div style="text-align:justify;"> <span style="font-family:Verdana;">The rumen microbiome plays an essential role in ruminant physiology, nutrition and pathology as well as host immunity. A better understanding of rumen</span><span style="font-family:Verdana;"> microbial processes and identification of which populations are responsible for specific functions within the rumen microbiome will lead to better management and sustainable utilization of the available feed base while maintaining a low environmental impact. Recent advance in the culture independent method of microbiology such as metagenomics, unravels potentially the rumen microbial process. Th</span><span style="font-family:Verdana;">ere are two basic types of metagenomics studies: Sequence-based and function-based metagenomics. Sequence-based metagenomics involves sequencing and analysis of DNA from environmental samples. Its purpose is to assemble genomes, identify genes, find complete metabolic pathways, and compare organisms of different communities. Whereas functional metagenomics is the study of the collective genome of a microbial community by expressing it in a foreign host usually </span><i><span style="font-family:Verdana;">Escherichia</span></i> <i><span style="font-family:Verdana;">coli</span></i><span style="font-family:Verdana;"> (</span><i><span style="font-family:Verdana;">E.</span></i> <i><span style="font-family:Verdana;">coli</span></i><span style="font-family:Verdana;">)</span><i><span style="font-family:Verdana;">.</span></i><span style="font-family:Verdana;"> It is a promising approach unearthing novel enzymes even from yet to culture rumen microbiota. Further advances in the screening techniques promise vast opportunities to rumen microbiologists, and animal nutritionist. The identification of novel enzyme through functional metagenomics consists of three parts: rumen sample collection;DNA library construction and screening of individual clone. Functional metagenomics was successfully applied to identify different antibiotics, hydrolytic enzymes, antibiotic resistance genes, and many other functions;moreover, it allowed characterization of genes encoding enzymes with a particular activity, which represents completely novel sequence. There are a number of outputs from functionally screened rumen product such as carbohydrate active enzymes (CAZymes) that can break down plant cell walls. Company involved commercialization of metagenomics research such as Syngenta, Genencor International, BRAIN etc., has produced many biological molecules of commercial interest. The aim of this paper is to elucidate functional metagenomics, from rumen environment and its potential for commercial purpose.</span> </div> 展开更多
关键词 DNA Isolation DNA library Construction Functional Screening
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A brief introduction to the development of the public librarianship in China
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作者 CHEN Jian 《Chinese Journal of Library and Information Science》 2008年第Z1期86-97,共12页
This paper briefly introduces the development status,background and prospect of the public librarianship in China.It contains a brief analysis of the basic situation of the public library in China at present according... This paper briefly introduces the development status,background and prospect of the public librarianship in China.It contains a brief analysis of the basic situation of the public library in China at present according to the data announced by the government,and gives an explanation about China's public library orientation,working condition,service characteristics and existing problems.In addition,the author provides a detailed description of the library's present working emphasis in order to present readers with an overall view of the basic condition of China's public library development at present time. 展开更多
关键词 Public library Service system of public culture library development library construction Reader service
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Development and construction of China's higher education libraries
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作者 YAN Jinwei ZHENG Lan +4 位作者 SONG Xue ZHANG Yan SONG Jiao DAI Longji LI Dejuan 《Chinese Journal of Library and Information Science》 2008年第2期31-51,共21页
Libraries in China's higher education institutions have been developing in keeping pace with the flourishing development of China's higher education. This article aims to make an introduction to the constructi... Libraries in China's higher education institutions have been developing in keeping pace with the flourishing development of China's higher education. This article aims to make an introduction to the construction of China's higher education libraries, especially the recent three decades' achievements since China's reform and opening-up in 1978. In this article, the authors draw a general picture of the development of libraries in China's higher education institutions, covering such eight aspects as management, types and positioning,organizational structure and personnel, expenditure and buildings, reader service, building and sharing of resources as well as automation system. 展开更多
关键词 Universities and colleges library library in China's higher education institutions library cause library construction Academic library
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Construction of a Plant Transformation-ready Expression cDNA Library for Thellungiella halophila Using Recombination Cloning 被引量:7
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作者 Wan-Song Ni Zhi-Yong Lei +2 位作者 Xi Chen David J. Oliver Cheng-Bin Xiang 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2007年第9期1313-1319,共7页
Salt cress (Thellungiella halophila), a close relative of the model plant Arabidopsis thaliana L., is an extremophile that is adapted to harsh saline environments. To mine salt-tolerance genes from this species, we ... Salt cress (Thellungiella halophila), a close relative of the model plant Arabidopsis thaliana L., is an extremophile that is adapted to harsh saline environments. To mine salt-tolerance genes from this species, we constructed an entry cDNA library from the salt cress plant treated with salt-stress by using a modified cDNA synthesis and an improved recombinationassisted cDNA library construction method that is completely free of manipulations involving restriction enzymes and DNA ligase. This cDNA library construction procedure is significantly simplified and the quality of the cDNA library is improved. This entry cDNA library was subsequently shuttled into the destination binary vector pCB406 designed for plant transformation and expression via recombination-assisted cloning. The library is plant transformation ready and is used to transform Arabidopsis on a large scale in order to create a large collection of transgenic lines for functional gene mining. 展开更多
关键词 cDNA library construction cDNA synthesis recombination assisted transformation.
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Cost-reduction strategies in massive genomics experiments 被引量:2
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作者 Haichao Li Kun Wu +3 位作者 Chenchen Ruan Jiao Pan Yujin Wang Hongan Long 《Marine Life Science & Technology》 2019年第1期15-21,共7页
Many modern biology studies require deep, whole-genome sequencing of hundreds to thousands of samples. Although persamplecosts have dramatically decreased, the total budget for such massive genome sequencing constitut... Many modern biology studies require deep, whole-genome sequencing of hundreds to thousands of samples. Although persamplecosts have dramatically decreased, the total budget for such massive genome sequencing constitutes a significantbarrier for poorly funded labs. The costly lab tools required for genomics experiments further hinder such studies. Here, weshare two strategies for extensively reducing the costs of massive genomics experiments, including miniaturization of theNEBNext Ultra II FS DNA Library Prep Kit for Illumina (reducing the per-sample total costs to ~ 1/6 of that charged byservice providers) and in-lab 3D model-designing of genomics tools. These strategies not only dramatically release fundingpressure for labs, but also provide students with additional training in hands-on genomics and 3D-model-designing skills,demonstrating the high potential for their application in genomics experiments and science education. 展开更多
关键词 3D model designing and printing Genome sequencing Lab-made tools library construction MINIATURIZATION
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