人、小鼠、大鼠等动物,优生优育、内分泌、生长因子、肿瘤标志物等全系列ELISA试剂盒8折促销
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Invitrogen 博莱霉素zeocin 特价促销博莱霉素使用方法与操作使用: ● 液体Zeocin 可用于细胞培养。● 用于筛选转化株的Zeocin 浓度根据PH 值和盐浓度改变。● PH 越高,盐浓度越低Zeocin 活性越大。● 普通大肠杆菌菌株筛选可在25 µg/ml zeocin 浓度的低盐LB 琼脂培养基中进行,PH 调至7.5 。● 动物细胞筛选:根据不同细胞系从100 到 750 µg/ml 。● 植物细胞筛选:根据不同的细胞种类和培养基从50 到 250 µg/ml 。● 酵母筛选:取决于种属和培养基,S. cerevisiae Sh ble 转化株在50 µg/ml 浓度的YPD 培养基中筛选,PH7.0.举例:构建融合Zeocin和GFP双筛选标记质粒pcB-Zeo-GFP。方法质粒LeCo-G/Zeo含有Zeo-GFP融合基因片段,通过PCR反应、 BamHI酶切后连接替换空白质粒pCB的筛选基因gpt,通过菌落PCR,酶切图谱分析及测序分析鉴定重组质粒,构建成功后将其与野生型痘苗病毒进行位 点特异性同源重组,经Zeocin药物筛选2代后,用流式细胞仪观察重组痘苗病毒GFP表达。结果经菌落PCR,1号、5号和10号菌落中扩增出 426bp的目的条带,与预期的大小完全一致,经酶切分析和DNA测序进一步验证了重组质粒pCB-zeo-GFP;该质粒与野生型痘苗病毒同源重组,得 到了重组的痘苗病毒;Zeocin筛选2代后,病毒上清感染细胞,流式细胞分析7.18%的细胞中有GFP的表达,而阴性对照仅有 1.43%;Zeocin药物筛选5代后,通过激光共聚焦可在80%以上的细胞中观察带GFP;提取的重组痘苗基因组DNA也扩增出预期大小目的条带。结 论含Zeocin和GFP双筛选标记的新型重组痘苗病毒不仅具有可观察性且具有药物抗性,非常容易进行筛选鉴定。 Zeocin™ Selection Reagent, (Liquid)(Gibco®)DescriptionGibco® Zeocin™ selective reagent is a formulation of phleomycin D1, a glycopeptide antibiotic produced by Streptomyces verticillus. Gibco® Zeocin™ selective reagent acts by binding to and cleaving DNA, leading to cell death. Gibco® Zeocin™ selective reagent is used for selection of yeast, bacterial and mammalian cell cultures. This product is supplied at 100 mg/ml in sterile water and is used at a working concentration ranging between 50 - 400 µg/ml depending on the cell type. Life Technologies offers a variety of antibiotics and antimycotics for cell culture applications.Product UseFor Research Use Only: Not intended for animal or human diagnostic or therapeutic use.Specifications博莱霉素产品资料 Form: Liquid Agent: Zeocin™ Product Size: 8 x 1.25 ml Reagent Type: Antibiotic (Selective) Concentration: 100 mg⁄ml Validated Application: Eukaryotic Selection⁄Stable Cell Line Generation, Bacterial Selection Regulatory Statement: For Research Use Only. Not for use in diagnostic procedures. Contents and Storage温馨提示:不可用于临床治疗。风险提示:蚂蚁淘仅作为第三方平台,为商家信息发布提供平台空间。用户咨询产品时请注意保护个人信息及财产安全,合理判断,谨慎选购商品,商家和用户对交易行为负责。对于医疗器械类产品,请先查证核实企业经营资质和医疗器械产品注册证情况。
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