Lactoferrin (17-41) (acetate)
目录号 : KM14385

Lactoferrin 17-41 (Lactoferricin B) acetate 对应于牛乳铁蛋白的残基 17-41,对革兰氏阳性和革兰氏阴性细菌、病毒、原生动物和真菌等多种微生物具有抗菌活性。Lactoferrin 17-41 acetate 具有抗肿瘤活性。

规格 价格 是否有货 数量
5mg
In-stock
10mg
In-stock
50mg 询价 In-stock
100mg 询价 In-stock

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生物活性

Lactoferrin 17-41 (Lactoferricin B) acetate, a peptide corresponding to residues 17-41 of bovine lactoferrin, has antimicrobial activity against a wide range of microorganisms, including Gram-positive and Gramnegative bacteria, viruses, protozoa, and fungi. Lactoferrin 17-41 acetate has antitumor activities.

体外研究

Lactoferrin 17-41 (Lactoferricin B) acetate has an MIC of 30 μg/ml against E. coli ATCC 25922.
Lactoferrin 17-41 acetate significantly stimulates apoptosis of HT-29 cells and displays cytotoxic activity on HT-29 cells.
Lactoferrin 17-41 acetate variously regulats transcription of genes involved in the p53 signaling pathway, such as PMAIP-1, TP5313, and SFN.
Lactoferrin 17-41 acetate can bind LPS from Gram-negative bacteria and that it can inhibit LPS induced cytokine response in human monocytic cells.

Cell Viability Assay

Cell Line: HT-29 cells
Concentration: 50, 100, 200, 400, 800 or 1000 µg/mL
Incubation Time: 4, 12, 24 or 48 hours
Result: More effective at inducing apoptosis at 400 µg/mL. Higher toxicity is shown at 800 µg/mL.
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Protect from light

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

溶解性数据
In Vitro: 

DMSO : 20 mg/mL (6.28 mM; ultrasonic and warming and heat to 60°C)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 0.3141 mL 1.5704 mL 3.1409 mL
5 mM 0.0628 mL 0.3141 mL 0.6282 mL
10 mM --- --- ---
*

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, 6 months; -20°C, 1 month (protect from light)。-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:

——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 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

  • 1.

    请依序添加每种溶剂: 10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2 mg/mL (0.63 mM); Clear solution

    此方案可获得 ≥ 2 mg/mL (0.63 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

  • 2.

    请依序添加每种溶剂: 10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2 mg/mL (0.63 mM); Clear solution

    此方案可获得 ≥ 2 mg/mL (0.63 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。

  • 3.

    请依序添加每种溶剂: 10% DMSO    90% corn oil

    Solubility: ≥ 2 mg/mL (0.63 mM); Clear solution

    此方案可获得 ≥ 2 mg/mL (0.63 mM,饱和度未知) 的澄清溶液,此方案不适用于实验周期在半个月以上的实验。

    以 1 mL 工作液为例,取 100 μL 20.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

The molarity calculator equation
Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)
The dilution calculator equation
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2