胸大美女又黄的网站啊吃_97在线精品_18禁亚洲深夜福利人口_99精品福利国产在线导航_亚洲人成绝费网站色WWW_国产一区二区三区在线观看免费_中文字幕亚洲码在线_少妇荡乳情欲办公室456视频_亚洲va久久久噜噜噜久久天堂

首頁 ? HEK293T CAGA12-Luc/TK Renilla BioVector?監(jiān)測Activin和TGF-β(轉(zhuǎn)化生長因子-β)信號通路的穩(wěn)定雙熒光素酶報告細(xì)胞系

HEK293T CAGA12-Luc/TK Renilla BioVector?監(jiān)測Activin和TGF-β(轉(zhuǎn)化生長因子-β)信號通路的穩(wěn)定雙熒光素酶報告細(xì)胞系

  • 價  格:¥998950
  • 貨  號:BioVector?HEK293T CAGA12-Luc/TK Renilla
  • 產(chǎn)  地:北京
點擊詢問我要采購
 竭誠為您服務(wù)!
BioVector NTCC典型培養(yǎng)物保藏中心
聯(lián)系人:Dr.Xu, Biovector NTCC Inc.

電話:400-800-2947 工作微信:1843439339 (QQ同號)

郵件:[email protected]

手機(jī):18901268599

地址:北京

已注冊
 

BioVector? HEK293T CAGA12-Luc/TK Renilla 是一種專門用于監(jiān)測 Activin 和 TGF-β(轉(zhuǎn)化生長因子-β)信號通路的穩(wěn)定雙熒光素酶報告細(xì)胞系。

以下是該細(xì)胞系的技術(shù)參數(shù)與說明:
1. 基本信息
  • 物種: 人源(Human)。

  • 組織來源: 胚胎腎臟(Fetal Kidney)。

  • 細(xì)胞類型: 上皮細(xì)胞(貼壁生長)。

  • 生物安全等級: BSL-2。

  • 倍增時間: 約 12–20 小時。

2. 遺傳改造與作用機(jī)制
該細(xì)胞系通過穩(wěn)定轉(zhuǎn)染整合了兩種報告基因,用于精確定量信號轉(zhuǎn)導(dǎo):
  • 主報告基因 (CAGA12-Luc): 含有 12 個重復(fù)的 CAGA 盒(源自 PAI-1 啟動子),該序列能特異性結(jié)合 Smad3/Smad4 復(fù)合物。當(dāng) TGF-β 或 Activin 激活信號通路時,細(xì)胞會表達(dá)螢火蟲熒光素酶(Firefly Luciferase)。

  • 內(nèi)參報告基因 (TK-Renilla): 由組成型 胸苷激酶 (TK) 啟動子 驅(qū)動,持續(xù)表達(dá)海腎熒光素酶(Renilla Luciferase)。用于校正細(xì)胞數(shù)量、活力及實驗孔間的誤差。

  • 篩選抗性:

    • Puromycin (嘌呤霉素): 用于維持 CAGA12-Luc 的穩(wěn)定性。

    • Blasticidin (殺稻瘟菌素): 用于維持 TK-Renilla 的穩(wěn)定性。


3. 培養(yǎng)條件
  • 培養(yǎng)基: DMEM 高糖培養(yǎng)基,添加 10% 胎牛血清 (FBS/FCS)。

    培養(yǎng)環(huán)境: 37°C,5% CO2

    • 生長特性: 貼壁生長;在優(yōu)化條件下倍增時間約為 12–20 小時。

    • 生物安全等級:BSL-2。

    檢測原理 (Assay Mechanism)
    1. 誘導(dǎo): 當(dāng)加入 TGF-β 或 Activin 時,Smad3 和 Smad4 結(jié)合形成復(fù)合物,并結(jié)合到 CAGA12 啟動子區(qū)域。

    2. 表達(dá): 結(jié)合后觸發(fā)螢火蟲熒光素酶的表達(dá)。

    3. 標(biāo)準(zhǔn)化: 使用雙熒光素酶報告基因檢測系統(tǒng)同時讀取兩種信號。通過螢火蟲熒光素酶與海腎熒光素酶的比值,可以消除細(xì)胞活力、接種誤差以及非特異性藥物反應(yīng)帶來的干擾。

  • The CAGA box is a TGFβ-inducible DNA element. (A) In the human PAI-1 promoter, two regions, depicted by black bars, have been described to respond to TGFβ. The sequences of the three CAGA boxes found in this promoter are given. (B) HepG2 cells were transfected with different vectors containing nine copies of the CAGA sequence cloned upstream of the HSV1-Thymidine kinase promoter (TK). AGCCAGACA is the sequence found at position-730 in the PAI-1 promoter and AGACAGACA is the sequence of the two other CAGA boxes of the PAI-1 promoter (positions-580 and-280). The last construct contains mutated CAGA boxes on 3 bp as indicated. Luciferase activities are shown and fold inductions by TGFβ are indicated. (C) HepG2 and Mv1Lu cells were transfected with p3TP-Lux or a vector containing nine or 12 copies of the CAGA box upstream of the minimal Adenovirus MLP. Fold inductions by TGFβ are given for HepG2 cells. Basal and TGFβ-induced luciferase levels are shown for Mv1Lu-transfected cells.



  • The BioVector? HEK293T CAGA12-Luc/TK Renilla cell line (Catalog #: 156438) is a specialized reporter cell line designed to monitor Activin and TGF-beta (TGF-β) signaling. It utilizes a dual-reporter system for high-sensitivity measurements and internal normalization.
    Core Specifications
    • Host Cell Line:HEK293T (Human Embryonic Kidney), an adherent line known for high transfection efficiency.

    • Reporter 1 (Inducible):CAGA12-Luc. A Smad3/Smad4-dependent Firefly luciferase reporter containing 12 copies of the CAGA box (AGAC motif) from the PAI-1 promoter. It responds to Activin and TGF-β signaling.

    • Reporter 2 (Constitutive):TK Renilla. A Renilla luciferase reporter driven by the thymidine kinase (TK) promoter, used as an internal control for normalization.

    • Selection Markers:Puromycin (conferred by pRetroSuper) and Blasticidin (conferred by pCMV-Bsd).

    • Application: Monitoring of Smad-dependent signal transduction pathways and screening for TGF-β/Activin pathway agonists or antagonists.

    Culture Conditions
    • Growth Medium: Dulbecco's Modified Eagle's Medium (DMEM) supplemented with 10% Fetal Calf Serum (FCS).

    • Storage: 1x10^6 cells/vial, typically stored in liquid nitrogen vapor phase for long-term stability.

    • Growth Characteristics: Adherent; doubling time is approximately 12–20 hours under optimal conditions.

    • Biosafety Level:BSL-2.

    Assay Performance
    • Mechanism: In the presence of Activin or TGF-β ligands, Smad3/4 complexes bind to the CAGA12 promoter, triggering the expression of Firefly luciferase.

    • Normalization: The Renilla luciferase signal provides a baseline for cell viability and transfection efficiency, allowing for "dual-luciferase" normalization.

    • Sensitivity: Capable of detecting minute moles of reporter protein with a linear range extending over 7 logs.

    BioVector NTCC質(zhì)粒載體菌株細(xì)胞蛋白抗體基因保藏中心

    E-mail:[email protected]

    電話:400-800-2947

    工作QQ/微信同號:1843439339

    網(wǎng)址 www.nedfriskphoto.com

    BioVector NTCC質(zhì)粒載體菌株細(xì)胞蛋白抗體基因保藏中心

    E-mail:[email protected]

    電話:400-800-2947

    工作QQ/微信同號:1843439339

    網(wǎng)址 www.nedfriskphoto.com

    O2cap C cap O sub 2

您正在向 biovector.net  發(fā)送關(guān)于產(chǎn)品 HEK293T CAGA12-Luc/TK Renilla BioVector?監(jiān)測Activin和TGF-β(轉(zhuǎn)化生長因子-β)信號通路的穩(wěn)定雙熒光素酶報告細(xì)胞系 的詢問

點擊“立即發(fā)送”后,我們將在1個工作日內(nèi)與您取得聯(lián)系。