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NRK-4xlambdaN22-3xmEGFP-M9
Tissue
肾脏
Synonyms
NRK 4xlN22-3xmEGFP-M9

Documents

NRK-4xlambdaN22-3xmEGFP-M9

Cell line · Product number 500672

The NRK-4xlambdaN22-3xmEGFP-M9 cell line is a clonal stable cell line derived from normal rat kidney (NRK) cells through the transfection of a circular pl...

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01General information

Description

NRK-4xlambdaN22-3xmEGFP-M9 细胞系是通过转染环形质粒从正常大鼠肾脏(NRK)细胞中获得的克隆稳定细胞系。该质粒含有编码四个串联重复的 lambda N22 RNA 结合位点和三个串联重复的融合了 M9 核定位信号的 mEGFP(单体增强型绿色荧光蛋白)标签的基因构建体。转染后,细胞进行了耐药性选择,以确保基因修饰的稳定性。

在这一克隆稳定品系中,约 50%的细胞表达荧光标记 4xλN22-3xmEGFP-M9,表明质粒的成功整合。该标记的表达可使细胞内过程实时可视化,mEGFP 强大的荧光信号也为其提供了便利。M9 核定位信号可确保表达的融合蛋白被转运到细胞核中,因此这种细胞系特别适用于研究核-细胞质转运、RNA 动态和基因表达调控。

这种 NRK-4xlambdaN22-3xmEGFP-M9 细胞系对于研究 RNA 结合蛋白相互作用、RNA 代谢以及核导入和导出机制的研究人员来说非常有价值。mEGFP 标记的存在使得共聚焦显微镜和活细胞成像等先进成像技术成为可能,为细胞成分的空间和时间动态提供了详细的信息。尽管细胞系出现了变异,但它仍然是剖析复杂分子通路和深入了解细胞功能的有力工具。

Tissue
肾脏
Synonyms
  • NRK 4xlN22-3xmEGFP-M9

02Classification

Organism
Rat
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
纺锤形纤维母细胞

04Identifiers

Citation
NRK-4xlambdaN22-3xmEGFP-M9(Cytion 目录号 500672)
NCBI TaxID
10116
Cellosaurus
CVCL_AV97
Depositor
艾伦伯格实验室(EMBL)

05Expression and susceptibility

Receptors expressed
表皮生长因子(EGF),增殖刺激活性(MSA)
Protein expression
4xλN22-3xmEGFP-M9: 位置/基因:937...1009、1066...1138、1194...1261、1323...1390 / lambda 肽、1462...2176、2179...2890、2896...3612 / mEGFP、3612...3815 / M9-His、5090...5884 / KanR/NeoR、7195...584 / Pcmv
Products
BsrG1/HindIII 之间的 M9-His 标记、新霉素、磷基转移酶、CMV 促进因子

06Handling and culture

Culture medium
DMEM,w:4.5 克/升葡萄糖,w:4 毫摩尔 L-谷氨酰胺,w:3.7 克/升 NaHCO3,w:1.0 毫摩尔丙酮酸钠(Cytion 编号 820300a)。
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 10% FBS、0.5 mg/mL G418
Dissociation reagent
Accutase
Subculturing
丢弃旧培养基,用 PBS 冲洗细胞。加入新配制的 0.025%胰酶/0.02%乙二胺四乙酸溶液,加热至 37 摄氏度,等待细胞分离,通常需要 5 分钟左右。加入新鲜培养基中和胰蛋白酶,然后将细胞混合物转移到离心管中并离心。离心后,除去上清液,用新鲜培养基重悬细胞团,然后将悬浮液转移到新的烧瓶中。将 G418 加入培养基中,使其最终浓度达到 0.5 mg/ml
Seeding density
2至4×10⁴个细胞/平方厘米
Fluid renewal
每周 2 至 3 次
Thawing and culturing
  1. Confirm that the vial remains deeply frozen upon delivery, as cells are shipped on dry ice to maintain optimal temperatures during transit.

  2. Upon receipt, either store the cryovial immediately at temperatures below -150°C to ensure the preservation of cellular integrity, or proceed to step 3 if immediate culturing is required.

  3. For immediate culturing, swiftly thaw the vial by immersing it in a 37°C water bath with clean water and an antimicrobial agent, agitating gently for 40-60 seconds until a small ice clump remains.

  4. Perform all subsequent steps under sterile conditions in a flow hood, disinfecting the cryovial with 70% ethanol before opening.

  5. Carefully open the disinfected vial and transfer the cell suspension into a 15 ml centrifuge tube containing 8 ml of room-temperature culture medium, mixing gently.

  6. Centrifuge the mixture at 300 x g for 3 minutes to separate the cells and carefully discard the supernatant containing residual freezing medium.

  7. Gently resuspend the cell pellet in 10 ml of fresh culture medium. For adherent cells, divide the suspension between two T25 culture flasks; for suspension cultures, transfer all the medium into one T25 flask to promote effective cell interaction and growth.

  8. Adhere to established subculture protocols for continued growth and maintenance of the cell line, ensuring reliable experimental outcomes.

07Quality control and cryopreservation

Sterility

使用基于 PCR 的检测方法和基于发光的支原体检测方法排除支原体污染。

为确保没有细菌、真菌或酵母菌污染,每天都要对细胞培养物进行目视检查。

Freeze medium
我们使用完全生长培养基(包括 FBS)+10% DMSO 或 CM-1(Cytion 商品目录编号 800100)作为冷冻保存培养基,以获得足够的解冻后存活率,CM-1(Cytion 商品目录编号 800100)含有优化的渗透保护剂和代谢稳定剂,可提高恢复能力并减少冷冻引起的应激。
Storage conditions

如需长期保存,可将样品瓶放入气相液氮中,温度约为 -150 至 -196 ℃。在-80 °C下保存只能作为转入液氮前的短暂过渡。

Shipping conditions

冷冻保存的细胞系用干冰装运,并用经过验证的隔热包装和足够的制冷剂在整个运输过程中保持约 -78 °C 的温度。收到货后,应立即检查容器,并立即将小瓶转移到适当的储藏室。

08Donor

Breed / subspecies
奥斯本-门德尔