Lucigen NxSeq AmpFREE DNA Lib Kit Dec2015

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双脱氧核苷酸测序法

双脱氧核苷酸测序法

双脱氧核苷酸测序法实验原理双脱氧测序▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼双脱氧测序法是根据核苷酸在某一固定的点开始,随机在某一个特定的碱基处终止,并且在每个碱基后面进行荧光标记,产生以A、T、C、G结束的四组不同长度的一系列核苷酸,然后在尿素变性的PAGE胶上电泳进行检测,从而获得可见的DNA碱基序列。

▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲DNA测序DNA测序技术,即测定DNA序列的技术。

在分子生物学研究中,DNA的序列分析是进一步研究和改造目的基因的基础。

目前用于测序的技术主要有Sanger等(1977)发明的双脱氧链末端终止法和 Maxam和 Gilbert(1977)发明的化学降解法。

这二种方法在原理上差异很大,但都是根据核苷酸在某一固定的点开始,随机在某一个特定的碱基处终止,产生 A,T,C,G四组不同长度的一系列核苷酸,然后在尿素变性的PAGE胶上电泳进行检测,从而获得DNA序列.目前 Sanger测序法得到了广泛的应用.测序原理DNA链中的核苷酸是以3’,5’-磷酸二酯键相连接,合成DNA 所用的底物是2’-脱氧核苷三磷酸(dNTP),属于单脱氧核苷酸,Sanger 双脱氧链终止法中被掺入了少量2’3’-双脱氧核苷酸(ddNTP),在核酸聚合酶链式反应(PCR)过程中,ddNTP 会随机地代替dNTP参加反应,一旦ddNTP加入了新合成的DNA 链, 由于其3位的羟基变成了氢, 不能再与其它的脱氧核苷酸形成3′,5′-磷酸二酯键,DNA合成便在此处终止,如果此处掺入的是一个ddATP,则新生链的末端就是A,依次类推可以通过掺入ddTTP、 ddCTP、 ddGTP ,则新生链的末端为T、C或G。

测序应用测序时分成四个反应, 每个反应除上述成分外分别加入2,3-双脱氧的A, C, G, T核苷三磷酸(称为ddATP, ddCTP, ddGTP, ddTTP), 然后进行聚合反应。

Lucigen NxGen T4 DNA Ligase(低浓度)产品说明书

Lucigen NxGen T4 DNA Ligase(低浓度)产品说明书

NxGen® T4 DNA Ligase (Low Concentration)FOR RESEARCH USE ONLY. NOT FOR HUMAN OR DIAGNOSTIC USE. Lucigen Corporation 2905 Parmenter St, Middleton, WI 53562 USAToll Free: (888) 575-9695 | (608) 831-9011 | FAX: (608) 831-9012****************************************Table of ContentsTechnical Support (2)Product Description (2)Product Specifications (3)Product Designations and Kit Components (3)Components & Storage Conditions (3)Reaction Set-Up (4)References (4)Notice of Limited Label License, Copyright, Patents, Warranties, Disclaimers and Trademarks (5)Technical SupportLucigen is dedicated to the success and satisfaction of our customers. Our products are tested to assure they perform as specified when used according to our recommendations. It is imperative that the reagents supplied by the user are of the highest quality. Please follow the instructions carefully and contact our technical service representatives if additional information is necessary. We encourage you to contact us with your comments regarding the performance of our products in your applications. Thank you.Lucigen Technical SupportEmail: ********************Phone: (888) 575-9695Product Guarantee: Lucigen guarantees that this product will perform as specified for one year from the date of shipment.Product DescriptionT4 DNA Ligase catalyzes the formation of a phosphodiester bond between the terminal 5′ phosphate and a 3′ hydroxyl groups of duple x DNA or RNA. The enzyme efficiently joins blunt and cohesive ends and repairs single stranded nicks in duplex DNA, RNA or DNA/RNA hybrids (1).Storage buffer: T4 DNA Ligase is supplied in 10 mM Tris-HCl, 50 mM KCl, 1 mM dithiothreitol, 0.1 mM EDTA, 0.1%Triton X-100, 50% glycerol, pH 7.5 @ 25 °C.10X T4 DNA Ligase Buffer is composed of 500 mM Tris-HCI, 100 mM MgCl2, 50 mM dithiothreitol,10 mM ATP, pH 7.6 @ 25 °C.Source of protein: A recombinant E. coli strain carrying the cloned T4 DNA Ligase gene.Unit Definition: One Weiss unit is defined as the amount of enzyme required to convert 1 nmol of 32P-labeled inorganic pyrophosphate into Norit adsorbable material in 20 minutes at 37 °C, using specified reaction conditions(2).Note: 1 Weiss Unit is approximately 67 cohesive end units.Product SpecificationsProduct Designations and Kit ComponentsComponents & Storage ConditionsStore all Kits and Components at -20 °CReaction Set-Up1. Add all of the components below to a clean reaction vessel.75-300 ng of insert for each reaction.2. Mix well by pipetting.3. Incubate at 25 °C for 30 minutes.4. Heat inactivate the reaction by incubating the ligation at 70 °C for 15 minutes.5. Purify DNA using a PCR clean-up column and elute in ~50 µL.–OR–Immediately dilute in TE or water (at least 1:10).6. Transform 0.1-10 ng of the ligation product into a chemically competent or electrocompetent cellline that is compatible with the vector.References1. Engler, M. J., and Richardson, C. C. (1982) DNA ligases. In The Enzymes, Vol. XV (Ed. P. D.Boyer) Academic Press, New York, 3-29.2. Weiss, B., Thompson, A., and Richardson, C. C. (1968) Enzymatic breakage and joining ofdeoxyribonucleic acid, VII. Properties of the enzyme-adenylate intermediate in thepolynucleotide ligase reaction. J. Biol. Chem. 243, 4556-4563.Notice of Limited Label License, Copyright, Patents, Warranties, Disclaimers and TrademarksLucigen’s products are sold for research use only and are not to be used in humans or for medical diagnostics. Lucigen’s liability with respect to any T4 DNA Ligase product is limited to the replacement of the product. No other warranties of any kind, expressed or implied, including, without limitation, any implied fitness for any particular use, are provided by Lucigen. Lucigen is not liable for any direct, indirect, incidental or consequential damages arising out of or in connection with the use or inability to use any of its T4 DNA Ligase products.Some applications in which Lucigen enzymes can be used may be covered by other patents issued and applicable in the United States and certain other countries. Because purchase of this product does not include a license to perform any patented application, users of this product may be required to obtain a patent license depending upon the particular application in which the product is used. It is the sole responsibility of the buyer to ensure that use of the product does not infringe the patent rights of third parties.Limited Label LicenseThe purchase price of this product includes limited, nontransferable rights to use only the purchased amount of the product. Lucigen Corporation reserves all other rights; in particular, the purchaser of this product may not transfer or otherwise sell this product or its components or derivatives to a third party, and no rights are conveyed to the purchaser to use the product or its components or derivatives for commercial purposes. “Commercial purposes” includes any activity for which a party receives consideration and may include, but is not limited to, (1) use of the product or its components or derivatives in manufacturing, (2) use of the product or its components or derivatives for diagnostic purposes, (3) use of this product or materials made therefrom to provide a service, information, or data (e.g., DNA sequence) to a third party in return for a fee or other consideration, or (4) resale of the product or its components or derivatives, whether or not such product or its components or derivatives are resold for use in research. Academic, Not-for-Profit, and For-Profit institutions must obtain a separate license from Lucigen Corporation to use this product for any purpose other than those permitted above. It is the sole responsibility of the buyer to ensure that use of the product does not infringe that patent rights of third parties.If the purchaser is not willing to accept these use limitations, Lucigen Corporation is willing to accept return of the product for a full refund. For information on obtaining a license, contact Lucigen Corporation,2905ParmenterSt.,Middleton,WI53562.Email:*******************.Phone:608-831-9011. Fax 608-831-9012.。

【豆丁推荐】-PLUNC基因启动子区荧光素酶报告载体的构建与鉴定

【豆丁推荐】-PLUNC基因启动子区荧光素酶报告载体的构建与鉴定

-----------------------------------Docin Choose -----------------------------------豆 丁 推 荐↓精 品 文 档The Best Literature----------------------------------The Best Literature热带医学杂志2009年2月第9卷第2期·硕博专栏论著·[文章编号]1672-3619(2009)02-0147-04基金项目:广东省自然科学基金(No.32874);广东省医学科研基金(No.2004382)。

作者简介:刘贝娜(1982-),女,硕士研究生,主要从事鼻咽癌基因多态性方面的研究。

*通讯作者:何英,女,硕士生导师,副主任医师,E-mail :ying-h@tom.comPLUNC (palate ,lung and nasal epithelium clone )基因即腭、肺、鼻上皮细胞克隆,多在口腔、鼻、呼吸和消化道的上皮表面或分泌腺中高表达[1-3]。

多项研究表明PLUNC 基因与鼻咽癌关系十分密切,其表达下调可能有助于鼻咽癌的发生,为抑瘤基因的候选者[4,5]。

我们前期对该方面也做了更深入的研究[6],发现hPLUNC 基因启动子区多态位点C-1888T 与中国广东人群鼻咽癌易感性关系非常密切(OR=2.8-3.3,P <0.001),而且携带单倍体型C-C 的个体更易患鼻咽癌(OR=1.86,95%CI=1.34-2.56,P =0.00016),说明hPLUNC 基因的遗传多态性可能影响了广东人群鼻咽癌的易感性。

本研究采用PCR 技术从人类基因组中克隆了PLUNC 基因1888位点含C /T 的2种单倍体型的荧PLUNC 基因启动子区荧光素酶报告载体的构建与鉴定刘贝娜1,何英1*,王爽2(1.南方医科大学南方医院耳鼻咽喉头颈外科,广州510515;2.南方医科大学病理学教研室,广州510515)【摘要】目的构建人PLUNC (palate ,lung and nasal epithelium clone )基因启动子区C-1888T SNP 位点不同单倍型荧光素酶报告基因表达载体。

一种用于染色体数目异常快速检测的半特异性扩增引物组、方法及试

一种用于染色体数目异常快速检测的半特异性扩增引物组、方法及试

专利名称:一种用于染色体数目异常快速检测的半特异性扩增引物组、方法及试剂盒
专利类型:发明专利
发明人:陈重建,梁峻彬,刘洋洋
申请号:CN201310312815.9
申请日:20130724
公开号:CN103397089A
公开日:
20131120
专利内容由知识产权出版社提供
摘要:本发明提供一种用于染色体数目异常快速检测的半特异性扩增引物组、试剂盒及方法。

本发明中涉及两组扩增引物。

本发明中试剂盒由以下组成:10*PCR缓冲液;ddHO;dNTP混合液;PlatinumPfxDNA聚合酶(2.5U/μl);扩增引物1引物对,均25μM/μl;扩增引物2;纯化
buffer(QIAGENMinElutePCRPurificationKit)。

本发明的另一个目的在于提供一种利用半特异性扩增引物组快速鉴定染色体数目异常的方法。

利用本发明,可以快速检测出染色体数目异常。

申请人:安诺优达基因科技(北京)有限公司
地址:100176 北京市大兴区亦庄经济开发区科创六街88号院2单元701室
国籍:CN
更多信息请下载全文后查看。

核酸检测篇-2-二代DNA测序技术

核酸检测篇-2-二代DNA测序技术

编号:2-2主题:第二代DNA测序技术概述:第一代测序(缺点:通量低1000个核苷酸/反应,费用高)•化学降解法•双脱氧链终止法(Sanger法)•荧光自动测序技术•杂交测序技术高通量测序:第二代测序(next-generation sequencing,NGS)第二代测序技术的核心思想是边合成边测序(Sequencing by Synthesis),即通过捕捉新合成的末端的标记来确定DNA的序列,现有的技术平台主要包括Roche/454 FLX、Illumina/Solexa Genome Analyzer和Applied Biosystems SOLID system。

这三个技术平台各有优点,454 FLX的测序片段比较长,高质量的读长(read)能达到400bp;Solexa测序性价比最高,不仅机器的售价比其他两种低,而且运行成本也低,在数据量相同的情况下,成本只有454测序的1/10;SOLID测序的准确度高,原始碱基数据的准确度大于99.94%,而在15X覆盖率时的准确度可以达到99.999%,是目前第二代测序技术中准确度最高的。

虽然第二代测序技术的工作一般都由专业的商业公司来完成,但是了解测序原理、操作流程等会对后续的数据分析有很重要的作用,下文将以Illumina/Solexa Genome Analyzer 测序为例,简述第二代测序技术的基本原理、操作流程等方面。

原理:Illumina/Solexa Genome Analyzer测序的基本原理是边合成边测序。

在Sanger等测序方法的基础上,通过技术创新,用不同颜色的荧光标记四种不同的dNTP,当DNA聚合酶合成互补链时,每添加一种dNTP就会释放出不同的荧光,根据捕捉的荧光信号并经过特定的计算机软件处理,从而获得待测DNA的序列信息。

Illumina Solexa测序仪特点:•桥式PCR•边合成边测序•可逆终止物Illumina Solexa 测序流程:操作步骤:1)测序文库的构建(Library Construction)首先准备基因组DNA(虽然测序公司要求样品量要达到200ng,但是Gnome Analyzer系统所需的样品量可低至100ng,能应用在很多样品有限的实验中),然后将DNA随机片段化成几百碱基或更短的小片段,并在两头加上特定的接头(Adaptor)。

普利莱 TUNEL 细胞凋亡检测试剂盒(绿色 FITC 标记荧光检测法,通用型)说明书

普利莱 TUNEL 细胞凋亡检测试剂盒(绿色 FITC 标记荧光检测法,通用型)说明书

62053186T UNEL细胞凋亡检测试剂盒(绿色FITC标记荧光检测法,通用型)C0001C0002描述:细胞凋亡中染色体DNA的断裂是个渐进的阶段性过程。

染色体DNA首先在内源性的核酸水解酶的作用下降解为50-300kb的大片段,然后大约30%的染色体DNA在Ca2+和Mg2+依赖的核酸内切酶作用下,在核小体单位之间被随机切断,形成180-200bp核小体DNA多聚体。

因此在细胞凋亡晚期,DNA会被降解为180-200 bp的片段,断裂的基因组DNA上暴露出大量的3'-OH末端。

末端脱氧核糖核苷酸转移酶(Terminal Deoxynucleotidyl Transferase,TdT)是一种不依赖于模板的DNA聚合酶,可以催化脱氧核苷酸结合到断裂的DNA分子3'-OH末端。

因此TUNEL(TdT mediated dUTP Nick End Labeling)细胞凋亡检测试剂盒可以用来检测组织细胞在凋亡晚期过程中细胞核DNA的断裂情况。

其原理是在TdT酶的作用下,在基因组DNA断裂时暴露出的3´-OH末端掺入荧光素标记的dUTP(FITC-12-dUTP),从而可以用荧光显微镜或流式细胞仪检测(FITC激发450-500nm,发射515-565nm)。

本试剂盒应用范围广,适用于石蜡组织切片,冰冻组织切片、细胞爬片、细胞涂片等的细胞凋亡检测。

储存与运输:冰袋(wet ice)运输;本试剂盒储存在-20℃,FITC-12-dUTP Labeling Mix需避光储存于-20℃,有效期12个月。

组成实验前准备:Component Number Component50T100T R1Recombinant TdT Enzyme50µL2×50µLR2FITC-12-dUTP Labeling Mix250µL2×250µLR3Equilibration Buffer5×1mL10×1mLR4Proteinase K(200µg/mL)1mL2×1mL产品说明书1份1.PBS磷酸盐缓冲液2.固定液:溶于PBS或其他缓冲体系的4%多聚甲醛,pH7.43.破膜液:溶于0.1%柠檬酸钠的0.1%Triton X-1004.配制含0.2%Triton X-100的PBS;配制含0.1%Triton X-100及5mg/mL BSA的PBS5.如需染核,需自备DAPI(2µg/mL)或PI(1µg/mL)6.如需阳性对照实验,需自备DNase I7.如果用流式细胞仪,自备PI染液和RNase A(DNase free)8.操作时请穿实验服,佩戴一次性手套。

二代测序建库试剂盒流程

二代测序建库试剂盒流程

二代测序建库试剂盒流程二代测序建库试剂盒提供了将DNA样品准备成测序文库所需的试剂和材料。

该流程通常包括以下步骤:1. DNA片段化DNA片段化是将高分子量DNA剪切成更小的片段。

这可以通过超声波、酶切或机械断裂等方法实现。

片段化后的DNA片段保留了原始样品的碱基序列信息。

2. 末端修复片段化后的DNA片段末端可能出现缺口或突起,需要进行末端修复以使其钝化。

末端修复酶将5'突出的末端修剪至平齐,并填充3'凹陷的末端,为后续连接接头创造平滑的末端。

3. 接头连接接头是短的寡核苷酸,可连接到DNA片段的两端。

接头通常包含测序引物结合位点和适于多重样品标记的条形码序列。

接头连接酶将接头连接到片段化的DNA,形成连接好的DNA分子。

4. 片段大小选择连接好的DNA分子大小各异。

片段大小选择步骤通过凝胶电泳或磁珠纯化等方法去除不需要的大小片段,保留目标大小范围内的片段。

5. PCR扩增片段大小选择后的DNA文库需要进行PCR扩增,以产生足够量的DNA用于测序。

扩增时使用接头序列作为引物,确保在扩增产物中包含测序所需的信息。

6. 文库纯化扩增后的文库包含扩增产物,以及未扩增的引物和dNTPs等杂质。

文库纯化步骤使用磁珠或柱式纯化方法去除这些杂质,得到高纯度的二代测序文库。

7. 定量和测序纯化的文库需要进行定量,以确定DNA浓度和摩尔数。

定量后,文库被稀释至合适的浓度进行测序。

注意:不同的二代测序平台可能需要特定的试剂盒和流程细节。

始终遵循试剂盒制造商提供的说明以获得最佳结果。

安捷伦二代测序操作方法

安捷伦二代测序操作方法

安捷伦二代测序操作方法
安捷伦二代测序操作方法主要分为以下几个步骤:
1. 文库构建:将待测样本的DNA或RNA分离,并进行适当的处理,如碎裂、修复末端、连接接头等。

然后通过PCR扩增,生成适合测序的文库。

2. 文库质检:对文库进行定量和质量检测,确保文库中的DNA或RNA片段长度适当且浓度合适。

3. 群体扩增:将文库中的DNA或RNA片段固定在测序芯片上的空位上,然后进行PCR反应,使每个DNA片段扩增成数百个等位基因的聚集体。

4. 测序反应:将扩增的DNA片段附着在玻璃芯片上,并加入碱基、引物和聚合酶。

然后通过荧光信号和光学检测,测定每个聚集体中的碱基序列。

5. 数据处理:将测序得到的原始数据进行图像转换和碱基配对,然后进行质量控制和序列比对。

最后得到测序样本的碱基序列信息。

6. 数据分析:根据测序得到的碱基序列信息,进行序列组装、多样性分析、功能注释等一系列数据分析,获得样本的基因型、表达水平、突变状态等相关信息。

需要注意的是,具体的操作方法可能会有一些具体的差异,可以参考安捷伦二代
测序仪的操作说明书来进行操作。

此外,操作中的实验室条件、试剂质量等因素也会对结果产生影响,需要严格控制实验条件和使用优质试剂。

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Other MiSeq Genome Sequencing Examples Highly Mappable Reads
Staphylococcus
Genome size, GC Raw reads Mapped reads Read length Total bases Genome fraction Avg. coverage Max coverage 2,821,361 33%GC 1,260,836 1,174,111 (93.12%) 148.8 bp 174,694,261 0.97 62X 172X
Optimized reagents and protocol
• Highest efficiency end-repair, A-tailing & ligation = more complex libraries and better sequencing coverage
Low DNA input with no amplification
Minimal handson time too!
Only 4 Key Components Simplify Usage and Affordable Pricing Reduces Costs
Product NxSeq® AmpFREE Low DNA Library Kit
Cat. No. 14000-1 14000-2
75ng
75ng
75ng
0
0
0
Swift
5
5
5
NxSeq
MiSeq Human Genome Sequencing Example >95% of Reads Map to the Genome
75 ng Human DNA Input Library Genome size, GC ~3 Gbp 45% GC Raw reads 3,131,114 Mapped reads 2,979,237 (95.15%) Read length 148.9 bp Total bases 443,767,447 Genome fraction 0.11 Avg. coverage 0.15X
75 ng input DNA More than enough library
Sufficient Library DNA Generated from Only 75 ng Input DNA
* MiSeq requires input of library DNA at 2 nM in 5 µL volume
Results: • On average, generated >1.7X more concentrated library than needed to add to the MiSeq • Sufficient yield from each library at a high enough concentration for multiple sequencing runs
25 20 15 20 15
E. coli K12 (~50% GC)
20
15 10
20 15 10
10
Illumina Illumina NxSeq NxSeq Kapa Kapa Swift Swift
5 0
10
Illumina
Illumina
NxSeq
Kapa
Kapa
250ng
Swift
1µg
1µg
1µg
250ng
100ng
250ng
100ng
250ng
100ng
1µg
• •
Vendor suggested fragmented DNA input Ran 5 µL of 2 nM samples normalized using Bioanalyzer and Qubit
100ng
75ng
Lucigen NxSeq 75 ng input
Kapa Hyper Prep Kit 250 ng input Swift Biosciences Accel-NGS 2S DNA Kit 100 ng input
• •
45.5 39 29.5 28
13
40
26.5 33
18
25.5
49
-
45
45
Highly Efficient Library Construction Greater Percentage of Identifiable Clusters
Human (45% GC)
% Clusters Identified
Rhodobacter (68% GC)
25
Staphylococcus (24% GC)
$150
$150
$3
$3
Library Kit Components: Enzyme Mix, 2X Buffer, Ligase, Elution Buffer
Summary
Highest efficiency PCR-free kit enables • Use of very small amounts of input DNA (75 ng) without the need for amplification • Better sequencing coverage and flow cell utilization Rapid protocol saves valuable time Affordable cost/adaptor costs are significantly lower than Illumina kits thus extending your budget
Total Library Yield in 20 µL Library -Input Human - 75 ng Staph – 75 ng Rhodo – 75 ng ng 28.6 29.8 23.2 Library Concentration ng/µL 1.43 1.49 1.16 nM 3.61 4.33 2.83 Volume of Library required to create 5 µL of a 2nM stock 2.77 µL 2.31 µL 3.53 µL
Size (rxn) 12 48 12 x 4 (12 adaptors, 4 rxn ea.)
US 2016 List Price
$240 $921
Price Per Rxn
$20 $19
NxSeq® Adaptors, Box 1
NxSeq® Adaptors, Box 2
14300-1
14400-1
NxSeq® AmpFREE™ Low DNA Library Kit
High Efficiency DNA Fragment Library Prep for Illumina NGS Instruments
November, 2015

NxSeq® AmpFREE™ Low DNA Library Kit Minimal DNA Input, No Amplification Bias
• 75 ng sheared DNA input = usable with limiting samples • No PCR = no amplification bias introduced
Fast and efficient
• DNA libraries in 2 hours = saves time and gets on the sequencer faster
Rhodobacter
4,602,977 69%GC 3,900,174 3,613,165 (92.64%) 149.6 bp 540,403,552 1.00 117X 364X
Used 75 ng sheared input DNA for fragment library prep
Fastest Protocol – Only ~2 Hours Total
Highly Efficient Library Construction PrLibrary ID Human Ave Illumina TruSeq 1 µg input 7 49 35 13 42 24 10 1 1 35 17 Staphylococcus Ave 1 37 22.5 4 60 31 12 59 41 8 43 39 Rhodobacter E. coli K12 Ave 10 51 40
Two libraries prepped per kit/organism using the manufacturer’s recommended input amounts. Adaptor ligation efficiency measured by qPCR using an amplified library standard.
Automation friendly
• Easily automate library prep with single tube reaction format
Minimal DNA Input Produces Plenty of Library Ready to Load on the Sequencer
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