The XP Media and CloneMedia for Mouse Hybridoma Generation is a complete solution that supports all stages of hybridoma cell line development from fusion to scale up. Optimized to support the selection and growth of hybridoma clones using the Molecular Devices ClonePix systems, the kit is also compatible with other appropriate methods.
Key Advantage:
- The semi-solid CloneMedia method of cloning prevents the overgrowth of fast-growing clones, allowing for the selection of potentially valuable slow-growing clones
- Hands-on time can be reduced when the workflow is combined with a ClonePix system. Hypoxanthine-aminopterin-thymidine (HAT) selection and cloning of hybridomas are accomplished in one step, minimizing the required time and materials
| Component | Description | Part Number |
|---|---|---|
CloneMedia Hybridoma Semi-Solid Selection and Cloning Medium (with HAT) | Used after fusion of splenocytes and myeloma cells to select and clone hybridomas in one step. Methycellulose-based formula optimized for colony formation. Equally suitable for fresh fusions and for stable hybridoma cell lines. Contains:
| K8865 |
*heat-inactivated
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我要克隆一个基因,这个基因有3个外显子,然后和质粒相连,重组载体,转到真核细胞中做表达,我用基因组DNA做模板,请问这么做可以吗,有人做过类似的实验吗?
请大家帮帮忙,本人毕业在即,谢谢大家
是不是只要从细胞里面提取基因组DNA,然后按照pubmed上的5端上游序列做一个PCR就可以了?
内容发布在蚂蚁淘和螺旋网上,有兴趣的战友也可以去那里看一下。
内容分三部分:
一、概述
1、克隆性染色体异常是肿瘤的特征
2、染色体异常常见的类型
3、染色体异常的检测方法
二、荧光原位杂交及其探针
1、荧光原位杂交的原理
2、荧光原位杂交的探针
三、荧光原位杂交探针的制备和荧光原位杂交(按试验流程介绍)
:D
FISH.pdf(1237.91k)
[日期]BiolChem.2004Jun3
[作者]SordetO,LiaoZ,LiuH,AntonyS,StevensEV,KohlhagenG,FuH,PommierY.
[单位]NCI,NIH,Bethesda,MD20892.
[摘要]TopoisomeraseIisanessentialenzymethatrelaxesDNAsupercoilingbyformingcovalentDNAcleavagecomplexes,whicharenormallytransient.TopoisomeraseI-DNAcomplexescanbetrappedbyanticancerdrugs(camptothecins),aswellasbyendogenousandexogenousDNAlesions.Weshowherethatarsenictrioxide(apotentinducerofapoptosisthatinducestheintracellularaccumulationofreactiveoxygenspeciesandtargetsmitochondria)inducescellulartopoisomeraseIcleavagecomplexes.Bcl-2overexpressionandquenchingofreactiveoxygenspecies,whichpreventarsenictrioxide-inducedapoptosis,alsopreventtheformationoftopoisomeraseI-DNAcomplexes,whereasenhancementofreactiveoxygenspeciesaccumulationpromotesthesecomplexes.Thecaspaseinhibitor,z-VADpartiallypreventsarsenictrioxide-inducedtopoisomeraseI-DNAcomplexesandapoptosis,suggestingthatactivatedcaspasesfurthermaintainintracellularlevelsofreactiveoxygenspeciesthatinducetheformationoftopoisomeraseI-DNAcomplexes.DownregulationoftopoisomeraseIexpressiondecreasesarsenictrioxide-inducedapoptoticDNAfragmentation.Thus,weproposethatarsenictrioxideinducestopoisomeraseI-DNAcomplexesthatparticipateinchromatinfragmentationandprogrammedcelldeathduringapoptosis.
[翻译]拓扑异构酶I是一种很重要的酶,可以作用于DNA,与之形成短暂的DNA共价物,使DNA超螺旋结构解开。抗癌药物如喜树碱,以及内源性和外源性的DNA损伤剂可诱导拓扑异构酶I–DNA复合物形成。我们研究发现三氧化二砷(细胞凋亡诱导剂,能诱导细胞内活性氧和线粒体增多)可诱导拓扑异构酶I–DNA复合物的形成Bcl-2表达增加和活性氧的消失提示Bcl-2可以预防三氧化二砷引起的细胞凋亡以及防止拓扑异构酶I–DNA复合物形成,z-VAD不仅是caspases的抑制剂,也可以防止拓扑异构酶I–DNA复合物的形成,他的作用说明拓扑异构酶I–DNA复合物的形成很有可能是通过激活caspases导致细胞内活性氧的含量进一步升高。拓扑异构酶I表达下调会降低三氧化二砷诱导的细胞小体的生成,因此,我们推测三氧化二砷诱导的拓扑异构酶I–DNA复合物的形成很可能导致染色体的断裂和程序化细胞死亡。
[点评]一直以来,我们发现三氧化二砷可以用来治疗白血病,但对于它为什么能用来治疗白血病我们一直不太清楚它的机制,对于三氧化二砷的毒理研究目前是热点。希望通过本摘要的翻译,引起大家对毒物的机制研究的兴趣。
我想用一个链霉素抗性的载体pCDFDuet™和一个卡纳pet28a或者氨卞pet32a的载体共转化入表达菌株rosetta。有什么可能的问题吗?
目基表达基工程叙述~
我的信箱:wjy_0912@hotmail.com
用引物PCR扩增目基片段;
选择合适(抗性标记、酶切位点等)克隆载体(保真扩增),并PCR片段连接入克隆载体;(般用Taq酶PCR产物末尾自带A,Solution 1作用与两端各带T线性T载体直接相连)
连接产物转化入受态肠杆菌,使含抗素培养基扩增;
肠杆菌提取质粒(即前面连接产物),酶切鉴定测序鉴定均误目基片段切并与新表达载体连接,再转化入肠杆菌扩增,再提质粒,即想要目基片段克隆.


