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  4. N-alpha-Tosyl-L-lysine chloromethyl ketone hydrochloride

N-alpha-Tosyl-L-lysine chloromethyl ketone hydrochloride 

目錄號: HY-112716 純度: ≥99.0%
COA 產(chǎn)品使用指南 技術(shù)支持

N-alpha-Tosyl-L-lysine chloromethyl ketone (TLCK) 是一種胰蛋白酶樣蛋白酶抑制劑，使 HeLa 細(xì)胞對 Fas 介導(dǎo)的細(xì)胞死亡敏感。

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N-alpha-Tosyl-L-lysine chloromethyl ketone hydrochloride Chemical Structure

N-alpha-Tosyl-L-lysine chloromethyl ketone hydrochloride Chemical Structure

CAS No. : 4272-74-6

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規(guī)格 價格 是否有貨 數(shù)量
5 mg ￥440
In-stock
10 mg ￥710
In-stock
50 mg   詢價  
100 mg   詢價  

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Customer Review

MCE 顧客使用本產(chǎn)品發(fā)表的 1 篇科研文獻(xiàn)

  • 生物活性

  • 實驗參考方法

  • 純度 & 產(chǎn)品資料

  • 參考文獻(xiàn)

生物活性

N-alpha-Tosyl-L-lysine chloromethyl ketone (TLCK), a trypsin like protease inhibitor, sensitizes HeLa cells to Fas-mediated cell death.

體外研究
(In Vitro)

N-alpha-Tosyl-L-lysine chloromethyl ketone exhibits an inhibitory effect on IFN-γ activities. The effect of TLCK is studied on the IFN-γ sensitization of HeLa cells towards cell death mediated by anti-Fas. Lower concentration of anti-Fas (10 ng/mL) are used to examine the interaction among the three effectors simultaneously, that is, anti-Fas, TLCK and IFN-γ. TLCK by itself up to 50 μM concentration exhibits a small decrease in cell viability. Beyond 50 μM, a dose dependent decrease in cell viability is observed. IFN-γ slightly reduces cell viability on its own. Addition of anti-Fas (10 ng/mL) results in a slight decrease in cell survival, which is enhanced more than additively in the presence of TLCK, most prominently between 50 and 100 μM. Upon addition of both anti-Fas and IFN-γ, a decrease (≈46%) in cell viability is observed. Moreover, the decrease in cell survival is further enhanced upon addition of higher concentrations of TLCK, 25 μM and more[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
分子量

369.31

Formula

C14H22Cl2N2O3S
CAS 號
性狀

固體

顏色

White to off-white

運(yùn)輸條件

Room temperature in continental US; may vary elsewhere.
儲存方式

-20°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

溶解性數(shù)據(jù)
細(xì)胞實驗： 

DMSO 中的溶解度 : 250 mg/mL (676.94 mM; 超聲助溶; 吸濕的 DMSO 對產(chǎn)品的溶解度有顯著影響，請使用新開封的 DMSO)

H2O 中的溶解度 : 100 mg/mL (270.78 mM; 超聲助溶)

配制儲備液
濃度 溶劑體積 質(zhì)量 1 mg 5 mg 10 mg
1 mM 2.7078 mL 13.5388 mL 27.0775 mL
5 mM 0.5416 mL 2.7078 mL 5.4155 mL
查看完整儲備液配制表

* 請根據(jù)產(chǎn)品在不同溶劑中的溶解度選擇合適的溶劑配制儲備液；一旦配成溶液，請分裝保存，避免反復(fù)凍融造成的產(chǎn)品失效。
儲備液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)。-80°C儲存時，請在6個月內(nèi)使用，-20°C儲存時，請在1個月內(nèi)使用。

* 備注：如您選擇水作為儲備液，請稀釋至工作液后，再用 0.22 μm 的濾膜過濾除菌后使用。

  • 摩爾計算器

  • 稀釋計算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

質(zhì)量
=
濃度
×
體積
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

濃度 (start)

C1

×
體積 (start)

V1

=
濃度 (final)

C2

×
體積 (final)

V2

動物實驗：

請根據(jù)您的 實驗動物和給藥方式 選擇適當(dāng)?shù)娜芙夥桨浮?

以下溶解方案都請先按照 In Vitro 方式配制澄清的儲備液，再依次添加助溶劑：
——為保證實驗結(jié)果的可靠性，澄清的儲備液可以根據(jù)儲存條件，適當(dāng)保存；體內(nèi)實驗的工作液，建議您現(xiàn)用現(xiàn)配，當(dāng)天使用；
以下溶劑前顯示的百分比是指該溶劑在您配制終溶液中的體積占比；如在配制過程中出現(xiàn)沉淀、析出現(xiàn)象，可以通過加熱和/或超聲的方式助溶

  • 方案 一

    請依序添加每種溶劑： 10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.08 mg/mL (5.63 mM); 澄清溶液

    此方案可獲得 ≥ 2.08 mg/mL（飽和度未知）的澄清溶液。

    以 1 mL 工作液為例，取 100 μL 20.8 mg/mL 的澄清 DMSO 儲備液加到 400 μL PEG300 中，混合均勻；再向上述體系中加入 50 μL Tween-80，混合均勻；然后再繼續(xù)加入 450 μL 生理鹽水 定容至 1 mL。

    生理鹽水的配制：將 0.9 g 氯化鈉，溶解于 ddH?O 并定容至 100 mL，可以得到澄清透明的生理鹽水溶液。
  • 方案 二

    請依序添加每種溶劑： 10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.08 mg/mL (5.63 mM); 澄清溶液

    此方案可獲得 ≥ 2.08 mg/mL（飽和度未知）的澄清溶液。

    以 1 mL 工作液為例，取 100 μL 20.8 mg/mL 的澄清 DMSO 儲備液加到 900 μL 20% 的 SBE-β-CD 生理鹽水水溶液 中，混合均勻。

    2 g SBE-β-CD（磺丁基醚 β-環(huán)糊精）粉末定容于 10 mL 的生理鹽水中，完全溶解至澄清透明。
動物溶解方案計算器
請輸入動物實驗的基本信息：

給藥劑量

mg/kg

動物的平均體重

g

每只動物的給藥體積

μL

動物數(shù)量

只
由于實驗過程有損耗，建議您多配一只動物的量
計算結(jié)果
工作液所需濃度 : mg/mL
該產(chǎn)品水溶性佳，請具體參考實測 水 / PBS / Saline 中的溶解度數(shù)據(jù)。
您所需的儲備液濃度超過該產(chǎn)品的實測溶解度，如有需要，請與 MCE 中國技術(shù)支持聯(lián)系。
純度 & 產(chǎn)品資料

純度: ≥99.0%

參考文獻(xiàn)
Cell Assay
[1]

HeLa cell line (human cervical cancer cells) is cultured in DMEM supplemented with 10% fetal bovine serum (FBS), L-glutamine (300 mg/L), penicillin (100 U/ml) and streptomycin(100 μg/ml) at 37°C in 5% CO2. HT-29 cell line (human colorectal adenocarcinoma) is cultured in RPMI supplemented with 10% fetal bovine serum (FBS), L-glutamine (300 mg/L), penicillin (100 U/mL) and streptomycin (100 μg/mL) at 37°C in 5% CO2. The cells are split every second day to keep the cell growth in logarithmic phase. The cells are routinely tested for mycoplasma. The cells are treated with different concentrations of TPCK or TLCK (5, 10, 25, 50, 100, 150, and 200 μM) for 30 min and/or with different concentrations of IFN-γ for 2 h followed by treatment with different concentrations of anti-Fas for 2 or 4 days for each specific experiment. The control cells are treated with the respective vehicle only. Cell viability analysis of HeLa and HT-29 cells is assessed by their XTT reduction activity. 100 μL of 2×104 cells/mL is incubated with treatments at the indicated time. At the end of the incubation period, 25 μL of 1 mg/mL XTT solution (containing 0.2 mM phenazine methosulphate (PMS) is added and the cells are incubated for an additional 1 h. The OD values are measured using an ELISA reader at 450 nm with a reference wavelength of 650 nm[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
參考文獻(xiàn)

N-alpha-Tosyl-L-lysine chloromethyl ketone hydrochloride 相關(guān)分類

完整儲備液配制表

* 請根據(jù)產(chǎn)品在不同溶劑中的溶解度選擇合適的溶劑配制儲備液；一旦配成溶液，請分裝保存，避免反復(fù)凍融造成的產(chǎn)品失效。
儲備液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)。-80°C儲存時，請在6個月內(nèi)使用，-20°C儲存時，請在1個月內(nèi)使用。

可選溶劑 濃度 溶劑體積 質(zhì)量 1 mg 5 mg 10 mg 25 mg
H2O / DMSO 1 mM 2.7078 mL 13.5388 mL 27.0775 mL 67.6938 mL
5 mM 0.5416 mL 2.7078 mL 5.4155 mL 13.5388 mL
10 mM 0.2708 mL 1.3539 mL 2.7078 mL 6.7694 mL
15 mM 0.1805 mL 0.9026 mL 1.8052 mL 4.5129 mL
20 mM 0.1354 mL 0.6769 mL 1.3539 mL 3.3847 mL
25 mM 0.1083 mL 0.5416 mL 1.0831 mL 2.7078 mL
30 mM 0.0903 mL 0.4513 mL 0.9026 mL 2.2565 mL
40 mM 0.0677 mL 0.3385 mL 0.6769 mL 1.6923 mL
50 mM 0.0542 mL 0.2708 mL 0.5416 mL 1.3539 mL
60 mM 0.0451 mL 0.2256 mL 0.4513 mL 1.1282 mL
80 mM 0.0338 mL 0.1692 mL 0.3385 mL 0.8462 mL
100 mM 0.0271 mL 0.1354 mL 0.2708 mL 0.6769 mL

* 備注：如您選擇水作為儲備液，請稀釋至工作液后，再用 0.22 μm 的濾膜過濾除菌后使用。

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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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產(chǎn)品名稱：
N-alpha-Tosyl-L-lysine chloromethyl ketone hydrochloride
目錄號：
HY-112716
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