Cell Line Information:
Designations: 293 [HEK-293]Depositors: FL GrahamGrowth Properties: adherentOrganism: Homo sapiensMorphology: epithelialSource:Organ: embryonic kidneyApplications: efficacy testing, transfection host, viruscide testingReceptors: vitronectinTumorigenic: YESAge: fetusComments: The cells containes Adenovirus 5 DNA from left ends of the viral genome. The line is excellent for titrating human adenoviruses. The cells express an unusual cell surface receptor for vitronectin composed of the integrin beta-1 subunit and the vitronectin receptor alpha-v subunit. The Ad5 insert was cloned and sequenced, and it was determined that a colinear seqment from nts 1 to 4344 is integrated into chromosome 19 (19q13.2)
The Transfection Reagent:
293 Cell Avalanche™ Transfection Reagent is a new, proprietary solution specifically designed for transfection on 293 Cells. The proprietary formulation of lipids and polymersensures the highest possible transfection efficiencies and viabilities for 293 Cells. No other transfection reagents can match the efficiency, convenience, and gentleness of 293 Cell Avalanche™ Transfection Reagent for transfection on 293 Cells. For details of the developing process of this reagent, please go to: How did EZ Biosystems develop Avalanche™ Cell type/cell line specific transfection reagent series?
References:
Amini M, Wang H, Belkacemi A, Jung M, Bertl A, etal.Identification of Inhibitory Ca2+ Binding Sites in the Upper Vestibule of the Yeast Vacuolar TRP Channel. iScience. 2019 Jan 25;11:1-12. PubMed PMID: 30572205; PubMed Central PMCID: PMC6299153.
Features:
- Specifically optimized to deliver nucleic acids into 293 Cells
- Highest efficiency to ensure experimental success
- Lowest Cellular Toxicity-maintain cell density and reduce experimental biases
- 0.5 ml is able to transfect about 1000 wells of 24-well plate
- Simplest and straightforward protocols
- Deliver single or multiple plasmids
- Compatible with serum
- Suitable for Reverse Transfection
- Reproducible: due to highly controlled chemical synthesis of each of the ingredients, the reagent forms uniformly sized complex particles with nucleic acids. With optimized protocol, our reagent will ensure the reproducible highest transfection results.
- Economical: High efficiency means less amount of nucleic acid & reagent is needed
- Developed and manufactured by EZ Biosystems
EZBiosystems美国EZBiosystems™公司是一家全球性转染试剂和基因表达生产服务提供商,公司的研发宗旨是让生命科学研究变得更简单,快速,容易!该公司主要产品之一为新一代转染试剂Avalanche 系列产品,该产品集合了组合化学,分子生物学和细胞生物学技术。公司致力于开发针对不同细胞类型的专用转染试剂。公司研发团队由多个学科经验丰富的专家组成,包括组合化学、脂类化学、生物物理学、分子生物学和细胞生物学。目前,EZBiosystems™主要提供广谱性基因及siRNA体外转染试剂、体内转染试剂、生物治疗性蛋白表达专用转染试剂以及150余种细胞特异性转染试剂。
EZBiosystems特约代理EZBiosystems品牌名称:EZBiosystemsEZBiosystems品牌logo:EZBiosystems品牌官网:http://ezbiosystems.com/EZBiosystems品牌链接:http://www.annoron.com/brand-342.htmlEZBiosystems品牌介绍:EZ生物系统™是一家全球性的基因转染和基因表达产品和服务提供商。EZBiosystems™isaworldwideprovideroftransfectionandgeneexpressionproducts&services.OneofthemajorfocusesofEZBiosystems™hasbeentheresearch,development,andmanufactureofnext-generationtransfectionreagents----theAvalanche®TransfectionReagentseriesbyapplyingourexpertiseincombinatorialchemistry,molecularBIOLOGy,andcellbiology. EZBiosystems品牌相关产品:品牌货号名称规格EZ BiosystemsEZT-CRPR-1Avalanche®-CRISPR Transfection Reagent0.5ml 1.5mlEZ BiosystemsEZT-OMNI-1Avalanche®-Omni Transfection Reagent0.75ml 1.5ml5*1.5mlEZ BiosystemsEZT-EVDY-1Avalanche®-Everyday Transfection Reagent0.75ml 1.5ml
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在弱碱性(pH 8~9)、暗处、室温或40℃条件下,氨基酸的α-氨基很容易与2,4-二硝基氟苯(缩写为FDNB或DNFB)反应,生成黄色的2,4-二硝基苯氨基酸(dinitrophenyl amino acid,简称DNP-氨基酸)。多肽或蛋白质的N-末端氨基酸的α-氨基也能与FDNB反应,生成一种二硝基苯肽(DNP-肽)。由于硝基苯与氨基结合牢固,不易被水解,因此当DNP-多肽被酸水解时,所有肽键均被水解,只有N-末端氨基酸仍连在DNP上,所以产物为黄色的DNP-氨基酸和其它氨基酸的混合液。混合液中只有DNP-氨基酸溶于乙酸乙酯,所以可以用乙酸乙酯抽提并将抽提液进行色谱分析,再以标准的DNP-氨基酸作为对照鉴定出此氨基酸的种类。因此2,4-二硝基氟苯法可用于鉴定多肽或蛋白质的N-末端氨基酸。
荧光标记物常用的有几十种,比如FITC, PE等等,各个生产厂家还有自己的专利产品
不知道发在这里合适不,实在是求助无门啊!版主手下留情。
想请问下那个公司有专门的蛋白质荧光标记试剂盒出售。最好的是CY5的,我准备做三标。性价比越高越好
那些做过的前辈们指导一下。
那为什么SFDA不批准CA199CEAAFP等检测试剂盒作为癌症检测的手段呢?