Skip to content
U2OS-CRISPR-SNAPf-Nup133
Tissue
骨质
Disease
骨肉瘤
Metastatic site
原发肿瘤部位(骨)

Documents

U2OS-CRISPR-SNAPf-Nup133

Cell line · Product number 300666

U2OS-CRISPR-SNAPf-Nup133 is a genetically engineered human osteosarcoma cell line derived from the parental U2OS background in which the endogenous NUP133...

US$800.00excl. tax and shipping
In stock
Lot
Recommended (freshest lot)
  • CoA
1

01General information

Description

U2OS-CRISPR-SNAPf-Nup133是一种基因工程改造的人类骨肉瘤细胞系,源自亲本U2OS背景。该细胞系通过CRISPR/Cas9介导的基因组编辑技术,对内源性NUP133基因座进行改造,使其C端编码SNAPf标签。 NUP133是Y复合体(NUP107-160复合体)的核心组分,该结构亚复合体对核孔复合体(NPC)的组装与维持至关重要。通过在内源性位点引入SNAPf编码序列,融合蛋白在天然调控机制下表达,从而保持生理表达水平及亚细胞定位。

SNAPf标签是SNAP标签的快速标记变体,该标签作为工程化O6-烷基鸟嘌呤-DNA烷基转移酶,可与苄基鸟嘌呤偶联底物发生共价反应。这使得通过细胞渗透性或非渗透性SNAP底物,能在活细胞或固定细胞中对Nup133进行高度特异且灵活的荧光标记。 在U2OS-CRISPR-SNAPf-Nup133细胞中,融合蛋白以核孔复合体特有的点状模式定位于核膜。由于标签发生于内源性位点,核孔复合体的化学计量与结构仅受微小干扰,使该模型适用于核孔复合体组装与转化的定量超分辨率显微镜观察、单分子追踪及动力学分析。

该细胞系为研究核运输、核质间物质转运动力学、间期及有丝分裂后核重组过程中的核孔复合体生物合成,以及孔架结构内Y复合体的结构组织提供了强大平台。 U2OS细胞背景具有扁平形态和大型细胞核,便于高分辨率成像。U2OS-CRISPR-SNAPf-Nup133细胞尤其适用于脉冲追踪标记实验、相关光电显微镜技术,以及与其他内源性标记核孔蛋白或转运因子结合的多色成像方法。

Tissue
骨质
Disease
骨肉瘤
Metastatic site
原发肿瘤部位(骨)
Applications
核孔复合体(NPC)生物学; Nup133/Y复合体的结构;NPC的生物合成;核-胞质转运;超分辨率显微镜(STORM/PALM/STED);单粒子追踪;脉冲-追踪SNAP标记法;相关光镜与电镜技术;NPC的定量化学计量学

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This human osteosarcoma cell line (U2OS-CRISPR-SNAPf-Nup133) contains a CRISPR-introduced SNAPf-Nup133 fusion, enabling fluorescent tagging of the Nup133 nucleoporin. The insert is stably present. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Morphology
上皮样
Cell type
上皮细胞(骨肉瘤)
Doubling time
约24至36小时

04Identifiers

Citation
U2OS-CRISPR-SNAPf-Nup133(Cytion 目录号 300666)
NCBI TaxID
9606
Depositor
艾伦伯格实验室(EMBL)

05Expression and susceptibility

Protein expression
Nup133、SNAPf-标记

06Handling and culture

Culture medium
McCoys 5a,w:3.0 克/升葡萄糖,w:稳定谷氨酰胺,w:2.0 毫摩尔丙酮酸钠,w:2.2 克/升 NaHCO3(Cytion 文章编号 820200a)。
Incubation atmosphere

37°C, 5%CO2, 加湿环境。

Supplements
在培养基中添加 10% FBS、3.0 g/L 葡萄糖、稳定的谷氨酰胺、2.0 mM 丙酮酸钠、2.2 g/L NaHCO3、1% NEAA
Dissociation reagent
Accutase
Subculturing
去除粘附细胞上的旧培养基,用不含钙和镁的 PBS 冲洗。T25 烧瓶用 3-5 毫升 PBS,T75 烧瓶用 5-10 毫升。然后用 Accutase 完全覆盖细胞,T25 烧瓶用 1-2 毫升,T75 烧瓶用 2.5 毫升。让细胞在室温下孵育 8-10 分钟,使其分离。孵育后,用 10 毫升培养基轻轻混合细胞使其重悬,然后用 300xg 离心 3 分钟。弃去上清液,用新鲜培养基重悬细胞,并将其转移到已装有新鲜培养基的新烧瓶中。
Split ratio
1 至 3
Seeding density
1 至 3 × 10⁴ 个细胞/cm²
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

Donor age
15 年
Ethnicity
高加索人