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  3. D-Luciferin potassium

D-Luciferin potassium  (Synonyms: D-荧光素钾盐; D-(-)-Luciferin potassium; Firefly luciferin potassium; Beetle Luciferin potassium)

目录号: HY-12591B 纯度: 99.97%
COA 产品使用指南 技术支持

D-Luciferin potassium 是荧光素酶 (Luc) 的天然底物,对萤火虫产生典型的黄绿光进行催化。该反应产生的 560 nm 化学发光在几秒钟内达到峰值,当底物荧光素过量时,光输出与荧光素酶浓度成正比。荧光素酶 (luc) 基因是研究和活性分子筛选的常用报告基因。化学发光技术实际上是无背景的,使得 luc 报告基因成为检测低水平基因表达的理想选择。在标准荧光计数仪中可以可靠地测量到 0.02 pg 的荧光素酶。除了用于基因表达的外,荧光素酶还用于 ATP 的检测。MCE提供萤火虫荧光素酶 (HY-P1004) 、荧光素游离酸 (HY-12591A) 及其水溶性钠盐 (HY-12591) 和钾盐 (HY-12591B) 。

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CAS No. : 115144-35-9

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10 mM * 1 mL in Water ¥550
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5 mg ¥312
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10 mg ¥500
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50 mg ¥900
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100 mg ¥1250
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250 mg ¥1800
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500 mg ¥2500
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1 g ¥3500
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Other Forms of D-Luciferin potassium:

MCE 顾客使用本产品发表的 77 篇科研文献

IF

    D-Luciferin potassium purchased from MCE. Usage Cited in: J Med Chem. 2024 Nov 28;67(22):20100-20117.  [Abstract]

    The tumor model is established by tail vein injection of luciferase-labeled MOLM-13-Luc cells. After allowing 6 days for tumor growth post-inoculation, daily oral gavage treatment is initiated (designated as day 0 of treatment) at doses of 200 or 400 mg/kg. Subsequently, bioluminescence imaging is performed via intraperitoneal injection of 150 mg/kg D-Luciferin potassium.

    D-Luciferin potassium purchased from MCE. Usage Cited in: mBio. 2025 Apr 9;16(4):e0366524.  [Abstract]

    Luciferase complementation imaging assay (LCA) of the interactions between BPA1 and either RipD or ACD11 in N. benthamiana. The interaction of Ca1 (AT3G01500) and Ca4 (AT1G70410) was used as a positive control, and n-Luc or c-Luc was used as a negative control.
    The interacting target proteins are fused to either the N-terminal or C-terminal fragment of luciferase, and the recombinant constructs are transformed into Agrobacterium tumefaciens GV3101. Forty hours after agroinfiltration,

    D-Luciferin potassium purchased from MCE. Usage Cited in: Acta Pharm Sin B. 2023 Dec;13(12):5074-5090.

    The bioluminescence images of lungs harvested from mice post different treatments. On day 13 after intravenous injection of B16F10-luc cells to establish a lung metastasis model of melanoma in mice, D-luciferin potassium (150 mg/kg) is intraperitoneally injected into the mice.

    D-Luciferin potassium purchased from MCE. Usage Cited in: J Nanobiotechnology. 2023 Oct 19;21(1):383.  [Abstract]

    On day 15 after intravenous injection of B16F10-luc cells into C57BL/6 mice to establish a melanoma lung metastasis model, D-Luciferin potassium (150 mg/kg) is intrabitoneally injected into the mice, and lung tissue is collected from the mice for bioluminescence imaging.

    D-Luciferin potassium purchased from MCE. Usage Cited in: New Phytol. 2023 Sep;239(5):1887-1902.  [Abstract]

    The full-length coding sequences (CDS) of target genes are cloned into either the pCAMBIA-nLuc or pCAMBIA-cLuc vectors. The resulting recombinant constructs are transformed into Agrobacterium tumefaciens strain GV3101, which is then infiltrated into Nicotiana benthamiana leaves. After 2 days, the infiltrated leaves are painted with 1 mM D-Luciferin potassium.

    D-Luciferin potassium purchased from MCE. Usage Cited in: Acta Pharm Sin B. 2023 Mar;13(3):967-981.

    Tumor growth is monitored by bioluminescence imaging. Prior to imaging, D-luciferin substrate is injected intraperitoneally into the mice (150 mg/kg per mouse).

    D-Luciferin potassium purchased from MCE. Usage Cited in: New Phytol. 2022 Dec;236(5):1796-1808.  [Abstract]

    ERF16-nLUC and CaM2-cLUC vectors are cotransfected in N. benthamiana leaves. 10 min after the abaxial sides of leaves are sprayed with 1 mM Luciferin.

    D-Luciferin potassium purchased from MCE. Usage Cited in: Pharmacol Res. 2021 Apr;166:105527.  [Abstract]

    After cell inoculation for 7 days, mice are injected intraperitoneally with D-luciferin substrate at 150 mg/kg and anesthetized 10% chloral hydrate (5 mL/kg).

    D-Luciferin potassium purchased from MCE. Usage Cited in: Cell Mol Gastroenterol Hepatol. 2021;12(3):839-856.

    HEK293T cells are seeded into a 6-well plate and transfected with in vitro synthesized mRNA containing the luciferase gene by Lipofectamine 2000. Luciferase substrate D-Luciferin sodium salt (1 mM) is added into the culture medium immediately after transfection. Luciferase activity is detected on the GloMax 96 Microplate Luminometer.

    D-Luciferin potassium purchased from MCE. Usage Cited in: Cell Death Dis. 2020 Sep 17;11(9):765.  [Abstract]

    At Day 10, 25, and 31, mice are anesthetized with isoflurane and then injected with 75 mg/kg D-Luciferin solution for imaging.
    • 生物活性

    • 实验参考方法

    • 纯度 & 产品资料

    • 参考文献

    生物活性

    D-luciferin potassium is the natural substrate of the enzyme luciferase (Luc) that catalyzes the production of the typical yellowgreen light of fireflies. The 560 nm chemiluminescence from this reaction peaks within seconds, with light output that is proportional to luciferase concentration when the substrate luciferin is present in excess. The luciferase (luc) gene is a popular reporter gene for research and agent screening. Chemiluminescent techniques are virtually background-free, making the luc reporter gene ideal for detecting low-level gene expression. As little as 0.02 pg of luciferase can be reliably measured in a standard scintillation counter. In addition to its role as a reporter of gene expression, luciferase is commonly used in an extremely sensitive assay for ATP[1]. We offer the firefly luciferase (HY-P1004), luciferin free acid (HY-12591A), as well as its water-soluble sodium salts (HY-12591) and potassium salts (HY-12591B) .

    体外研究
    (In Vitro)

    1. 操作前注意事项
    a) D-Luciferin 在 100 mM 的水性缓冲液 (pH 6.1-6.5) 中易于溶解。储备溶液可在不含 ATP 的水中制成,并储存在 -20℃ 的温度下,以防光线照射。游离酸必须用适当的碱中和以溶解。在较高的 pH 值下,荧光素经历碱催化的脱氢脲醛生成,以及外消旋成L-异构体。
    b) D-Luciferin 可用于任何现有的报告基因检测或 ATP 检测系统。
    c) 如果检测 ATP,需要戴手套和使用不含 ATP 的容器,尽量减少所有可能的 ATP 污染源。只使用无菌的不含 ATP 的水和试剂。所有试剂制剂使用蒸压水。
    2. 实验操作
    此说明仅提供实验参考,具体实验方法根据您的具体实验进行更改。
    2.1 体外成像实验示例
    a) 在无菌水中制备100 mM (100-200X) 荧光素储备溶液 拌匀。立即使用或一次性等份使用,并在 -20℃ 下储存,避免冻融循环,避免暴露在阳光下。
    b) 在预热过的组织培养液中配制 0.5-1 mM D-Luciferin 工作液
    c) 除去细胞中的培养基。
    d) 在细胞中加入 D-Luciferin 工作液,成像前 37℃ 孵育细胞 5-10 分钟。
    2.2 体内成像实验示例
    a) 在 DPBS 中制备 15 mg/mL 荧光素储备溶液,不含 Mg2+Ca2+ 拌匀。
    b) 过滤器通过 0.2μm 过滤器对溶液进行灭菌。立即使用,或一次性等份使用,并在 -20℃ 下储存,避免冻融循环,避免暴露在阳光下。
    c) 成像前 10-15 分钟,以 150 mg/kg (或 10 μL/g 荧光素储备溶液) 的动物体重腹腔注射 D-Luciferin。
    注:应为每个动物模型进行 D-Luciferin 动力学研究,以确定峰值信号时间。
    2.3 基因检测实验示例
    a) 在无菌水中制备100 mM 荧光素储备溶液。立即使用,或一次性等份使用,并在 -20℃ 下储存,避免冻融循环,避免暴露在阳光下。
    b) 在 25 mM tricine 缓冲液 (pH 7.8) 中制备含有 3 mM ATP、1 mM DTT 和 15 mM MgSO4 的 1 mM D-Luciferin 工作溶液。
    c) 用移液管将 5-10 μL 细胞裂解液移到微孔板中。使用不含裂解物的裂解试剂或缓冲液作为空白对照。
    d) 根据说明,使用荧光素工作溶液为光度计注入底部。
    e) 立即注入 200 μL D-Luciferin工作溶液,结合时间为10秒。

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

    体内研究
    (In Vivo)

    使用萤火虫荧光素酶 (Fluc) 作为报告基因和 D-荧光素作为底物的生物发光成像 (BLI) 是目前应用最广泛的技术。将总信号强度与 D-荧光素注射后的时间作图,以生成时间-强度曲线。除了峰值信号外,D-荧光素注射后固定时间点 (5、10、15 和 20 分钟) 的信号被确定为峰值信号的替代信号。给定时间-强度曲线中的信号针对曲线中的峰值信号进行归一化,以表示 D-荧光素注射后的时间变化模式[3]
    注入 10 μL每克体重的 D-萤光素 (腹膜内或静脉内) 储备液:标准 150 mg/kg 注射的 20 g 小鼠通常约 200 μL。
    解冻 D-萤光素 (钾盐或钠盐) 室温并溶解在 dPBS (不含钙或镁) 中,最终浓度为 15 mg/mL。通过 5-10 mL 的无菌 H2O 润湿 0.22 μM 过滤器并丢弃水。通过准备好的 0.22 μM 注射器过滤器对 D-荧光素溶液进行消毒。
    注射入体内 10-20 min (待光信号达到最强稳定平台期),再进行成像分析。
    注意:建议对每只动物模型都需要建立荧光素酶动力学曲线,从而确定最高信号检测时间和信号平台期。荧光素注射注入小鼠体内后,约 1 min 可扩散到小鼠全身。
    对于腹腔注射来讲,扩散较慢,开始发光较慢,持续发光时间较长。
    对于荧光素的尾部静脉注射,扩散快,开始发光快,但发光持续时间较短。

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

    分子量

    318.41

    Formula

    C11H7KN2O3S2

    CAS 号
    性状

    固体

    颜色

    Light yellow to yellow

    中文名称

    D-萤光素钾盐

    运输条件

    Room temperature in continental US; may vary elsewhere.

    储存方式

    4°C, sealed storage, away from moisture and light

    *In solvent : -80°C, 2 years; -20°C, 1 year (sealed storage, away from moisture and light)

    溶解性数据
    细胞实验: 

    H2O 中的溶解度 : 17.39 mg/mL (54.62 mM; 超声助溶 (<60°C))

    配制储备液
    浓度 溶剂体积 质量 1 mg 5 mg 10 mg
    1 mM 3.1406 mL 15.7030 mL 31.4060 mL
    5 mM 0.6281 mL 3.1406 mL 6.2812 mL
    查看完整储备液配制表

    * 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
    储备液的保存方式和期限:-80°C, 2 years; -20°C, 1 year (sealed storage, away from moisture and light)。-80°C储存时,请在2年内使用, -20°C储存时,请在1年内使用。

    * 备注:如您选择水作为储备液,请稀释至工作液后,再用 0.22 μm 的滤膜过滤除菌后使用。

    • 摩尔计算器

    • 稀释计算器

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

    质量
    =
    浓度
    ×
    体积
    ×
    分子量 *

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

    This equation is commonly abbreviated as: C1V1 = C2V2

    浓度 (start)

    C1

    ×
    体积 (start)

    V1

    =
    浓度 (final)

    C2

    ×
    体积 (final)

    V2

    动物实验:

    以下溶解方案,请直接配制工作液。建议现用现配,在短期内尽快用完。 以下溶剂前显示的百分比是指该溶剂在您配制终溶液中的体积占比; 如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶。

    • 方案 一

      请依序添加每种溶剂: PBS

      Solubility: 8.33 mg/mL (26.16 mM); 澄清溶液; 超声助溶 (<60°C)

    动物溶解方案计算器
    请输入动物实验的基本信息:

    给药剂量

    mg/kg

    动物的平均体重

    g

    每只动物的给药体积

    μL

    动物数量

    由于实验过程有损耗,建议您多配一只动物的量
    计算结果
    工作液所需浓度 : mg/mL
    该产品水溶性佳,请具体参考实测 水 / PBS / Saline 中的溶解度数据。
    您所需的储备液浓度超过该产品的实测溶解度,如有需要,请与 MCE 中国技术支持联系。
    纯度 & 产品资料

    纯度: 99.97%

    染色示例
    参考文献
    Animal Administration
    [2]

    Mice[2]
    In vivo BLI is performed using a cooled charge-coupled device camera system (IVIS Imaging System 100) 3, 5, 7, 10, 12, 14, 19, 21, 24, and 28 days after the inoculation of HCT116-Luc cells. Mice are injected with 75 mg/kg D-luciferin in 100 μL of phosphate-buffered saline subcutaneously. Beginning 5 min after injection, dorsal luminescent images with an exposure time of 1 s are acquired sequentially at a rate of one image per min until 20 min after D-luciferin injection. Data acquisition is continued until 40 min postinjection on days 3 or 5 and until 25 min on day 7, because of the prolonged time course of light emission. Binning is 4 and the field of view is 15 cm.

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

    参考文献

    完整储备液配制表

    * 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
    储备液的保存方式和期限:-80°C, 2 years; -20°C, 1 year (sealed storage, away from moisture and light)。-80°C储存时,请在2年内使用, -20°C储存时,请在1年内使用。

    可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
    H2O 1 mM 3.1406 mL 15.7030 mL 31.4060 mL 78.5151 mL
    5 mM 0.6281 mL 3.1406 mL 6.2812 mL 15.7030 mL
    10 mM 0.3141 mL 1.5703 mL 3.1406 mL 7.8515 mL
    15 mM 0.2094 mL 1.0469 mL 2.0937 mL 5.2343 mL
    20 mM 0.1570 mL 0.7852 mL 1.5703 mL 3.9258 mL
    25 mM 0.1256 mL 0.6281 mL 1.2562 mL 3.1406 mL
    30 mM 0.1047 mL 0.5234 mL 1.0469 mL 2.6172 mL
    40 mM 0.0785 mL 0.3926 mL 0.7852 mL 1.9629 mL
    50 mM 0.0628 mL 0.3141 mL 0.6281 mL 1.5703 mL

    * 备注:如您选择水作为储备液,请稀释至工作液后,再用 0.22 μm 的滤膜过滤除菌后使用。

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    产品名称:
    D-Luciferin potassium
    目录号:
    HY-12591B
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