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  2. Apoptosis Metabolic Enzyme/Protease Immunology/Inflammation NF-κB
  3. Apoptosis Endogenous Metabolite Reactive Oxygen Species
  4. L-Theanine

L-Theanine  (Synonyms: L-茶氨酸; L-Glutamic Acid γ-ethyl amide; Nγ-Ethyl-L-glutamine)

目錄號: HY-15121 純度: 99.67%
COA 產(chǎn)品使用指南 技術(shù)支持

L-Theanine (L-Glutamic Acid γ-ethyl amide) 是一種存在綠茶葉片中的非蛋白氨基酸物質(zhì)，能阻斷大腦中谷氨酸與谷氨酸受體結(jié)合，具有神經(jīng)保護、抗癌和抗氧化活性。L-Theanine 能透過血腦屏障，具有口服活性。

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L-Theanine Chemical Structure

L-Theanine Chemical Structure

CAS No. : 3081-61-6

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規(guī)格 價格 是否有貨 數(shù)量
10 mM * 1 mL in Water ￥550
In-stock
100 mg ￥500
In-stock
200 mg ￥700
In-stock
500 mg   詢價  
1 g   詢價  

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Customer Review

Other Forms of L-Theanine:

  • 生物活性

  • 純度 & 產(chǎn)品資料

  • 參考文獻

生物活性

L-Theanine (L-Glutamic Acid γ-ethyl amide) is a non-protein amino acid contained in green tea leaves, which blocks the binding of L-glutamic acid to glutamate receptors in the brain, and with neuroprotective, anticancer and anti-oxidative activities. L-Theanine can pass through the blood–brain barrier and is orally active[1][2][3].

體外研究
(In Vitro)

L-Theanine (L-Glutamic Acid γ-ethyl amide) inhibits the incorporation of extracellular glutamine into neurons, resulting in the suppression of exocytotic release of glutamate[3].
L-Theanine (500 μM; 72 h) protects against excess Dopamine (HY-B0451)-induced neuronal death in presence of astrocytes and increases glutathione level in astrocytes[3].
L-Theanine (0-5 mM; 72 h) is involved in glutathione synthesis[3].
L-Theanine (0.1-5 mM; 24 h) dose-dependently inhibits the viability of melanoma but not normal epidermal melanocytes[4].
L-Theanine (1-5 mM; 24 h) arrests cell cycle at G0/G1 phase, suppresses cell migration, induces apoptosis in A375 cells[4].
L-Theanine (1-5 mM; 24 h) also affects the proliferation, migration, and apoptosis of B16–F10 melanoma cells[4].
L-Theanine shows protective effect on cadmium-induced apoptosis in PC12 cells by inhibiting the mitochondria-mediated pathway and decreased ROS production[5].

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

Cell Proliferation Assay[4]

Cell Line: A375 and PIG1 cells
Concentration: 0.1, 0.5, 1, 2 and 5 mM
Incubation Time: 24 h
Result: Dose-dependently decreased the viability of A375, but not PIG1 cells.

Cell Cycle Analysis[4]

Cell Line: A375
Concentration: 1, 2 and 5 mM
Incubation Time: 24 h
Result: Led to a dose dependent accumulation of A375 cells in G0/G1 phase and prevented cells from entering the S phase.

Western Blot Analysis[4]

Cell Line: A375
Concentration: 1, 2 and 5 mM
Incubation Time: 24 h
Result: Remarkably reduced the expression of proliferating cell nuclear antigen (PCNA), decreased protein levels of cyclinD1, cyclinE1, and cyclin-dependent protein kinase (CDK2 and CDK4). Potentiated the expression of cyclin-dependent kinase inhibitor 1A (CDKN1A, p21).
Dose-dependently increased the levels of apoptosis-promoting proteins including BAX and cleaved-caspase3 and decreased the level of antiapoptotic protein BCL-2.
Concentration dependently reduced the protein levels of ICAM-1, VCAM-1, MMP9, and MMP2.
Dose-dependently increased the p53 expression.

Cell Migration Assay [4]

Cell Line: A375
Concentration: 1, 2 and 5 mM
Incubation Time: 24 h
Result: Apparently suppressed the migration.

Apoptosis Analysis[4]

Cell Line: A375
Concentration: 1, 2 and 5 mM
Incubation Time: 24 h
Result: Showed pro-apoptotic effect.

RT-PCR[4]

Cell Line: A375
Concentration: 1, 2 and 5 mM
Incubation Time: 24 h
Result: Markedly elevated the mRNA levels of Bmal1, Clock, Rora, and Rev-erbβ.
體內(nèi)研究
(In Vivo)

L-Theanine (4.0 mg/kg; p.o.; daily for 14 days) upregulates glutathione contents in striata of normal mice[3].

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

Animal Model: Healthy male ICR mice weighing 32–34 g[3]
Dosage: 4.0 mg/kg
Administration: Oral administration, daily for 14 days
Result: Significantly increased glutathione content in the striatum, but not in the midbrain.
分子量

174.20

Formula

C7H14N2O3
CAS 號
性狀

固體

顏色

White to off-white

中文名稱

L-茶氨酸；茶氨酸
結(jié)構(gòu)分類
初始來源
運輸條件

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

4°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)
細胞實驗： 

H2O 中的溶解度 : 150 mg/mL (861.08 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 5.7405 mL 28.7026 mL 57.4053 mL
5 mM 1.1481 mL 5.7405 mL 11.4811 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：

以下溶解方案，請直接配制工作液。建議現(xiàn)用現(xiàn)配，在短期內(nèi)盡快用完。 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： PBS

    Solubility: 100 mg/mL (574.05 mM); 澄清溶液; 超聲助溶

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: 99.67%

參考文獻

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 1 mM 5.7405 mL 28.7026 mL 57.4053 mL 143.5132 mL
5 mM 1.1481 mL 5.7405 mL 11.4811 mL 28.7026 mL
10 mM 0.5741 mL 2.8703 mL 5.7405 mL 14.3513 mL
15 mM 0.3827 mL 1.9135 mL 3.8270 mL 9.5675 mL
20 mM 0.2870 mL 1.4351 mL 2.8703 mL 7.1757 mL
25 mM 0.2296 mL 1.1481 mL 2.2962 mL 5.7405 mL
30 mM 0.1914 mL 0.9568 mL 1.9135 mL 4.7838 mL
40 mM 0.1435 mL 0.7176 mL 1.4351 mL 3.5878 mL
50 mM 0.1148 mL 0.5741 mL 1.1481 mL 2.8703 mL
60 mM 0.0957 mL 0.4784 mL 0.9568 mL 2.3919 mL
80 mM 0.0718 mL 0.3588 mL 0.7176 mL 1.7939 mL
100 mM 0.0574 mL 0.2870 mL 0.5741 mL 1.4351 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。

Help & FAQs
  • 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：
L-Theanine
目錄號：
HY-15121
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