CD 293 中的 293 H 细胞
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Gibco™

CD 293 中的 293 H 细胞

Gibco™ 293-H 细胞由原始 293 细胞系克隆而来并适应于 Gibco™ CD 293 培养基。293了解更多信息
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货号数量
116310171.5 mL
货号 11631017
价格(CNY)
-
数量:
1.5 mL
Gibco™ 293-H 细胞由原始 293 细胞系克隆而来并适应于 Gibco™ CD 293 培养基。293 细胞系是一种由原代人胚肾建立的永久性细胞系,并用剪切人腺病毒 5 型 DNA 进行转化。这些细胞中表达的E1A腺病毒基因可参与到一些病毒启动子的转录激活过程中,这一机制使得这些细胞能够表达非常高水平的蛋白。Gibco™ CD 293 培养基中 Gibco™ 293-H 细胞的特点如下:
•在 Gibco™ CD 293 培养基或 Gibco™ 293 SFM II 中快速直接解冻为悬浮培养物
• 生长速度快、贴壁性较好、转染效率高、蛋白表达水平高
• 记录低传代主细胞库的谱系
• 质量和性能检测

在 Gibco™ CD 293 培养基或 Gibco™ 293 SFM II 中快速直接解冻为悬浮培养物
每个含 7.5 × 106 个细胞的样品瓶可直接在 Gibco™ CD 293 培养基或 Gibco™ 293 SFM II(补充 4 mM L-谷氨酰胺或 GlutaMAX™ 试剂)中解冻为悬浮液或贴壁培养物。方案见产品手册。

生长速度更快、贴壁性较好、转染效率高、蛋白表达水平高
基于在无血清培养基中生长速度快、斑块测定期间贴壁性好、转染效率高且蛋白表达水平高的原则选定克隆制备 Gibco™ 293-H 细胞。最佳的转染效率可经获得Lipofectamine™ 2000293fectin™ 转染试剂.

低传代主细胞库的记录谱系
通过有限稀释克隆亲代 293 细胞;选定克隆显示出快速生长和高转染效率。然后通过限制稀释重新克隆该克隆;随后在这些克隆中,选择了 293-H 克隆,因其在斑块测定期间具有良好的贴壁性。无血清主细胞库在约传代 25 时制备。

质量和性能检测
每批次 Gibco™ 293 H 细胞都经过检测,以确定低温冻存复苏后的细胞生长和活力。此外,已对主种子库的细菌、酵母菌、支原体和病毒的污染进行了检测,并已通过同工酶和核型分析进行了表征。

产品使用
仅供研究使用。不可用于人或任何动物的治疗或诊断用途。注意:请至少于2级生物安全防护措施条件下操作任何具有潜在生物危害性的材料。本品含有二甲亚砜(DMSO),这是一种有害试材。请在操作前浏览材料安全性数据表。请在操作前浏览材料安全性数据表。
仅供科研使用。不可用于诊断程序。
规格
推荐培养基SFM(无血清基质)
产品类型HEK 293 细胞
数量1.5 mL
运输条件干冰
细胞系293H
种属
Unit SizeEach
内容与储存
1 个样品瓶含 7.5 x 106 个细胞
储存条件:液氮(汽相)
运输条件:冷冻

常见问题解答 (FAQ)

What is the difference between 293, 293H, 293F, and 293FT cells?

The 293 cell line is a permanent line established from primary embryonal human kidney transformed with sheared human adenovirus type 5 DNA (Graham et al., 1977; Harrison et al., 1977). The E1A adenovirus gene is expressed in these cells and participates in transactivation of some viral promoters, allowing these cells to produce very high levels of protein.

The FreeStyle 293-F cell line is a clone of the 293 cell line and is intended for use with the FreeStyle 293 Expression System. These cells are adapted to suspension culture in FreeStyle 293 Expression Medium.

The 293H cell line was also cloned from 293 cells, and like 293F cells can be grown as either suspension or adherent cultures. Neither 293F or 293H attach very well in SFM. In serum-supplemented medium, both attach better, but 293H attaches better than 293F. 293H is also better for transient transfection. 293F cells have a faster doubling time than 293H, and are better suited for selection of stables and large scale cultures.

The 293FT Cell Line is derived from the 293F Cell Line and stably expresses the SV40 large T antigen from the pCMVSPORT6TAg.neo plasmid. Expression of the SV40 large T antigen is controlled by the human cytomegalo-virus (CMV) promoter and is high-level and constitutive.

引用和文献 (1)

引用和文献
Abstract
Efficient intracellular assembly of papillomaviral vectors.
Authors:Buck CB, Pastrana DV, Lowy DR, Schiller JT,
Journal:J Virol
PubMed ID:14694107
Although the papillomavirus structural proteins, L1 and L2, can spontaneously coassemble to form virus-like particles, currently available methods for production of L1/L2 particles capable of transducing reporter plasmids into mammalian cells are technically demanding and relatively low-yield. In this report, we describe a simple 293 cell transfection method for efficient ... More