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Stable HEK293 Cells-Rpn11-HTBH
Tissue
腎臟
Disease
經轉化/永生化的胎兒腎臟(HEK293 背景;Rpn11-HTBH 轉基因)

Documents

Stable HEK293 Cells-Rpn11-HTBH

Cell line · Product number 305719

Stable HEK293 Cells-Rpn11-HTBH is a stably transfected derivative of the HEK293 (Human Embryonic Kidney 293) cell line, engineered to express a tagged ver...

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1

01General information

Description

穩定 HEK293 細胞-Rpn11-HTBH 是 HEK293 (人類胚胎腎臟 293)細胞系的穩定轉染衍生物,經基因工程改造後可表達帶有標記的 Rpn11(亦稱為 PSMD14 或 POH1)蛋白,該蛋白是 26S 蛋白酶體蓋複合體中的去泛素化酶亞基。 Rpn11 是一種 Zn²⁺ 依賴性的 JAMM 結構域去泛素化酶,可在蛋白酶體降解過程中,從與蛋白酶體結合的底物上移除泛素鏈。 HTBH 標籤(六組歷史丁胺酸-TEV-生物素受體肽-六組歷史丁胺酸)可在天然條件下對含有 Rpn11 的複合體進行親和純化,使該細胞系特別適合用於蛋白酶體複合體的純化及相互作用組學研究。

此細胞系適用於 26S 蛋白酶體生物學、泛素-蛋白酶體途徑(UPS)調控、Rpn11/PSMD14 在蛋白質品質控制中的功能、蛋白酶體組裝與動態,以及蛋白酶體抑制劑作用機制等研究。 它亦可用於親和純化天然蛋白酶體複合體,並作為研究蛋白酶體背景下去泛素酶生物學的模型。HTBH 標記系統可透過基於鏈霉親和素的拉下法,對生物素標記的複合體進行高度嚴格的純化。

Tissue
腎臟
Disease
經轉化/永生化的胎兒腎臟(HEK293 背景;Rpn11-HTBH 轉基因)
Applications
26S 蛋白酶體生物學;Rpn11/PSMD14 功能;泛素-蛋白酶體途徑;蛋白酶體複合體純化;去泛素酶生物學;HTBH-tag 親和純化;蛋白酶體相互作用組研究

02Classification

Organism
Human
Growth properties
Adherent
GMO status
GMO-S1
GMO status details
GMO-S1: This HEK293 derivative contains a stably integrated Rpn11-HTBH expression cassette (hexahistidine-TEV-biotin acceptor peptide-hexahistidine tagged Rpn11/PSMD14). This classification applies only within Germany and may differ elsewhere.
Biosafety level
1

03Characteristics

Morphology
上皮樣
Cell type
上皮細胞
Doubling time
約 24 至 36 小時

04Identifiers

Citation
穩定 HEK293 細胞-Rpn11-HTBH(Cytion 型號 305719)
NCBI TaxID
9606

05Handling and culture

Culture medium
DMEM,含 4.5 g/L 葡萄糖、4 mM L-谷氨醯胺、3.7 g/L NaHCO₃ 及 1.0 mM 丙酮酸鈉(Cytion 產品編號 820300a)
Incubation atmosphere

37°C,5% CO₂,加濕環境。

Supplements
在培養基中加入 10% 的胎牛血清(FBS)
Dissociation reagent
大多數細胞在 PBS 中會脫落,如有需要,請加入 Accutase,於室溫下作用 5 分鐘
Subculturing
移除培養基,用不含鈣和鎂的PBS清洗,加入Accutase覆蓋,於室溫下孵育 8–10 分鐘,重新懸浮於培養基中,以 300×g 離心 3 分鐘,棄去上清液,再將細胞接種於新鮮培養基中。
Split ratio
1 至 10
Seeding density
2 至 4 × 10⁴ 個細胞/cm²
Fluid renewal
每 2 至 3 天
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 200 x g for 5 minutes, carefully discard the supernatant containing freezing medium.

  7. Follow the procedure described under Post-Thaw Recovery

06Quality control and cryopreservation

Freeze medium
作為冷凍保存培養基,我們使用完全生長培養基加上 10% 的二甲基亞砜(DMSO),以確保解凍後的細胞存活率達到適當水準。
Storage conditions

若需長期保存,請將試管置於溫度約為 −150 至 −196 °C 的氣相液氮中。僅在轉移至液氮之前,可將試管暫時存放於 −80 °C 環境中,作為短期過渡步驟。

Shipping conditions

冷凍保存的細胞系會以乾冰冷藏,並裝於經驗證的隔熱包裝中,包裝內含有足夠的冷媒,以確保在運輸過程中溫度維持在約 −78 °C。收到貨物後,請立即檢查容器,並盡快將試管轉移至適當的儲存場所。