GeneStructureAnnotationatPlantGDB
The accurate identification of exons and introns that comprise a complete plant gene structure can be a time-consuming and challenging task. Novel Web-based tools facilitate the process by providing a convenient interface to current transcript evidence, and portals to relevant bioinformatics software. With a few keystrokes, the user can explore alternative transcript assemblies and, for example, select for ......閱讀全文
GENEπ數字PCR技術應用教程
數字 PCR( digital PCR ,dPCR ) 下一代DNA/RNA擴增技術。原理是將一個PCR 反應體系分配到大量微小的反應單元中,在每個微反應器中包含或不包含 1 個或多個拷貝的目標核酸分子 (DNA 模板) ,進行“單分子模板”PCR 擴增。擴增結束后,通過陽性反應單元( 通過
A-Guide-to-CORNET-for-the-Construction-of-Coexpression-and-ProteinProtein..
To enable easy access and interpretation of heterogenous and scattered data, we have developed a user-friendly tool for data mining and integratio
Structure:新思路!利用磁鐵開發抵御流感新療法!
近日,發表于國際雜志Structure上的一項研究論文中,來自美國佛羅里達州立大學的科學家們利用磁石對流感病毒成功地進行了靶向作用,相關研究或為后期開發新型流感療法提供思路。 文章中,研究者Tim Cross揭示了流感病毒的作用機理,并且解釋了為何流感病毒可以讓患者機體如此脆弱,基于對流感病毒
Sleeping-Beauty-transposon-mutagenesis-in-rat-spermatogonial-stem-cells
Sleeping Beauty transposon mutagenesis in rat spermatogonial stem cellsZoltán Ivics,1, 2 Zsuzsanna Izsvák,1, 2 Gerardo Medrano,3, 4 Karen M Chapman3,
Gene-Expression-Analysis-of-Shoot-Apical-Meristem-Cell-Types
Shoot apical meristems (SAMs) of higher plants harbor a set of stem-cells and provide cells for the development of all the above-ground biomass of
Lissencephaly-gene-(LIS1)-in-neuronal-migration-and-development
Integration of pathways that regulate nucleokinesis during neuronal migration and a model of LIS1 mediating CLIP-170 interactions with the dynein/dyna
基因克隆技術(Gene-Cloning-Techniques)2
二、目的基因和載體的連接 獲得目的基因后必須將其放在一定的載體內才能在宿主細胞內擴增或表達。目的基因與載體的連接及其后續的轉化過程習慣上稱為克隆(cloning)。由于目前很多基因都是利用PCR技術獲得,因此這里先介紹PCR產物的克隆策略,然后再介紹其他的克隆方式。 (一
基因克隆技術(Gene-Cloning-Techniques)2
二、目的基因和載體的連接獲得目的基因后必須將其放在一定的載體內才能在宿主細胞內擴增或表達。目的基因與載體的連接及其后續的轉化過程習慣上稱為克隆(cloning)。由于目前很多基因都是利用PCR技術獲得,因此這里先介紹PCR產物的克隆策略,然后再介紹其他的克隆方式。(一)PCR產物的克隆策略獲得PCR
Overview-of-telomerase-RNA-component-gene-hTerc-Transcriptional-Regulation
Telomerase is an enzyme which replicates the terminal sequences of eukaryotic chromosomes, namely the telomeres. Cells which have an unlimited replica
克隆基因的表達(expression-of-cloned-gene)3
(3)原核生物的基因組基本上是單倍體,而真核基因組是二倍體。(4)如前所述,細菌多數基因按功能相關成串排列,組成操縱元的基因表達調控的單元,共同開啟或關閉,轉錄出多順反子(polycistron)的mRNA;真核生物則是一個結構基因轉錄生成一條mRNA,即mRNA是單順反子(monocistron)
基因表達輪廓(gene-expressed-profile)技術3
電子雜交即虛擬的RNA雜交(Virtual northern blots)。用已知的EST序列為起始序列,采用BLAST(Basic Local Alignment Search Tool,BLAST)檢索程序檢索數據庫中與其同源或有部分重疊的EST序列,以分別確定EST是屬于已知基因還是已
基因表達輪廓(gene-expressed-profile)技術1
基因表達譜或基因表達輪廓(gene expressed profile)技術就是利用mRNA提取、cDNA合成、酶切、連接、PCR及分子雜交等分子生物學基礎操作技術,將某一生物材料在某一特定階段表達的基因全部展示出來,通過測序及與數據庫比較或通過目標和對照樣品中所表達基因的比較,可以找出特異表達
Gene-splicing-and-mutagenesis-by-PCRdriven-overlap-extension
實驗概要? ? ? ? Extension of overlapping gene segments by PCR is a simple, versatile technique for site-directed mutagenesis and gene splicing.Initial
克隆基因的表達(expression-of-cloned-gene)1
基因表達(gene expression)是指儲存遺傳信息的基因經過一系列步驟表現出其生物功能的整個過程。典型的基因表達是基因經過轉錄、翻譯,產生有生物活性的蛋白質的過程。基因的表達主要涉及到兩個過程:轉錄和翻譯。 ? 第一節影響外源基因表達的因素 利用基因工程技術高水平表達
SUMOylation-as-a-mechanism-to-modulate-CtBPdependent-gene-responses
Covalent attachment of one eukaryotic protein to another is a prominent posttranslational modification and Ubiquitin is the most familiar of the prote
基因表達輪廓(gene-expressed-profile)技術2
經過這輪RDA過程,Tester中的目的DNA將得到第一次富集。將第一輪產物更換新接頭,進行第二輪RDA過程,目的DNA可得到進一步的富集。該技術假陽性很低。但仍不能解決個體mRNA在豐度上存在巨大差異的問題,當靶序列濃度較低時,其富集受抑制。3:抑制消減雜交(suppression subtrac
Polymerase-Chain-Reaction-(PCR)-to-Amplify-rRNA-Gene-Fragment
Polymerase Chain Reaction (PCR) to Amplify rRNA Gene FragmentPrepare sufficient master mix for both partners (45 mL/50 mL reaction)10 mL 10x PCR buffe
克隆基因的表達(expression-of-cloned-gene)2
在雙鏈 DNA 分子中,只有一條鏈轉錄成 mRNA,這條鏈稱為有意義鏈(sense strand),該基因的另一條鏈則稱反意義鏈(antisense strand)。在含有許多基因的 DNA 雙鏈中,每個基因的有意義鏈并不是在同一條 DNA 鏈上。也就是說,一條鏈上既具有某些基因的有意義鏈,
Gene--Dev:揭開癌細胞復制的秘密
南卡羅來納醫科大學霍林斯癌癥中心的科學家發現,一些細胞可以在必要因子存在的情況下分裂。他們的結果發表在2018年7月的《Gene & Development》雜志上。這一發現解釋了肝細胞在受傷后如何再生,以及可以幫助我們了解癌癥是如何產生的,以及癌細胞如何進化以產生額外的突變,從而加速生長和擴散
Mechanism-of-Gene-Regulation-by-Peroxisome-Proliferators-via-PPARa(alpha)
The most recognized mechanism by which peroxisome proliferators regulated gene expresssion is through a PPAR/RXR heterodimeric complex binding to a pe
Polymerase-Chain-Reaction-(PCR)-to-Amplify-rRNA-Gene-Fragment
Polymerase Chain Reaction (PCR) to Amplify rRNA Gene FragmentPrepare sufficient master mix for both partners (45 mL/50 mL reaction)10 mL 10x PCR buffe
學者開發出基因結構注釋“拋光”工具
華南農業大學園藝學院教授夏瑞團隊在國家自然科學基金等項目的資助下,開發了一種基于基因共線性進行物種基因組基因結構注釋矯正的工具——SynGAP(Synteny-based Gene structure Annotation Polisher)。相關成果近日在線發表于《基因組生物學》(Genome
Targeted-Gene-Replacement-in-Fungi-Using-a-SplitMarker-Approach
Targeted gene replacement is one of the primary strategies for functional characterization of fungal genes and several methods have been developed
fMLP-induced-chemokine-gene-expression-in-HMC1-cells
Neutrophils respond to bacterial infection by releasing reactive oxygen species that kill bacteria and by expressing chemokines that attract other imm
Gene-Inactivation-in-the-Cyanobacterium-Synechococcus-sp.-PCC-7002-and...
Gene Inactivation in the Cyanobacterium Synechococcus sp. PCC 7002 and the Green Sulfur Bacterium Chlorobium tepidum Using In Vitro-Made DNA Const
Heterogeneity-of-SingleCell-Gene-Expression-Across-Phenotypically(二)
?Figure 2: Verification of C1 Single-Cell mRNA-Seq data quality. a)ERCC ?RNA Spike-In Control Mix 1 was applied to a C1 IFC at a total ?transcript in
Heterogeneity-of-SingleCell-Gene-Expression-Across-Phenotypically(一)
Introduction? Multi-cellular ?populations are fundamentally driven by the collective properties of ?individual cells. However, our understanding of ge
Oxidative-Stress-Induced-Gene-Expression-Via-Nrf2
Reactive oxygen species (ROS) can damage biological macromolecules and are detrimental to cellular health. Electrophilic compounds, xenobiotics and an
“基因”(Gene)一詞是怎么來的?
基因所代表的物質在生命中至關重要,它的發現是科學史一個偉大的里程碑。“基因” 這個詞的發明和翻譯也堪稱完美。 對科學名詞的翻譯的方式有兩種,一種是意譯(根據含義來翻譯),另一種是音譯(根據讀音來翻譯)。能在意譯和音譯上都達標則效果更佳,但這樣的名詞極少,一個難得的例子是 “基因”(Gene
學者開發出基因結構注釋“拋光”工具
華南農業大學園藝學院教授夏瑞團隊在國家自然科學基金等項目的資助下,開發了一種基于基因共線性進行物種基因組基因結構注釋矯正的工具——SynGAP(Synteny-based Gene structure Annotation Polisher)。相關成果近日在線發表于《基因組生物學》(Genome B