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HK EGFP-H2B
Tissue
子宫颈
Disease
癌症
Synonyms
HeLa Kyoto H2B-EGFP, HeLa Kyoto H2B EGFP, HeLa-H2B-GFP

Documents

HK EGFP-H2B

Cell line · Product number 300673

The HK EGFP-H2B cell line is a genetically modified Hela Kyoto cell line used primarily for the study of chromatin dynamics and nuclear processes. This ce...

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01General information

Description

HK EGFP-H2B 细胞系是一种转基因的 Hela Kyoto 细胞系,主要用于研究染色质动力学和核过程。该细胞系表达由增强型绿色荧光蛋白(EGFP)和组蛋白 H2B 组成的融合蛋白。将 EGFP 与 H2B 蛋白融合后,可在荧光显微镜下实时观察活细胞中的染色质,为了解细胞核的空间和时间组织提供宝贵的信息。

EGFP-H2B 融合技术有助于细胞生物学的多种应用,包括细胞周期进展、有丝分裂和基因表达调控的研究。通过观察荧光模式,研究人员可以识别和分析细胞周期的各个阶段、染色体分离以及细胞核内的结构变化。该细胞系来源于成人人类细胞,确保与人类生物学相关,可用于基础生物学研究和应用药物研究。

此外,HK EGFP-H2B 细胞系还是表观遗传学研究的重要工具。直接观察组蛋白行为的能力有助于了解基因表达和沉默的表观遗传机制,以及各种表观遗传修饰剂的作用。该细胞系在活细胞成像实验中的强大应用使其成为需要动态细胞分析的详细研究中不可或缺的工具。

Tissue
子宫颈
Disease
癌症
Synonyms
  • HeLa Kyoto H2B-EGFP
  • HeLa Kyoto H2B EGFP
  • HeLa-H2B-GFP

02Classification

Organism
Human
Sex
Female
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This HeLa Kyoto line contains an EGFP-H2B construct allowing real-time visualization of chromatin organization. This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Morphology
具有镶嵌石形状的上皮样细胞

04Identifiers

Citation
HK EGFP-H2B(Cytion 目录号 300673)
NCBI TaxID
9606
Cellosaurus
CVCL_1D63
Depositor
艾伦伯格实验室(EMBL)

05Expression and susceptibility

Protein expression
EGFP-H2B:位置/基因:1...589 / Pcmv, 613...1329 / EGFP, 1387...1764 / H2B, 3001...3795 / KanR/NeoR
Products
CMV 促进因子、组蛋白 H2B、新霉素、磷酸转移酶

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
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。
Seeding density
1 × 10⁴ 个细胞/平方厘米
Fluid renewal
每周 2 至 3 次
Post-thaw recovery
解冻后,将细胞以5×10⁴个细胞/平方厘米的密度接种于培养皿中,使细胞从冷冻过程中恢复并至少贴壁24小时。
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
30年
Ethnicity
非洲裔美国人