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。
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 ofmicroorganisms, including Gram-positive and Gramnegative bacteria, viruses, protozoa, and fungi. Lactoferrin 17-41 acetate has antitumor activities[1][2]. |
体外研究 (In Vitro) | Lactoferrin 17-41 (Lactoferricin B) acetate has an MIC of 30 μg/ml againstE. coliATCC 25922[1]. Lactoferrin 17-41 acetate significantly stimulates apoptosis of HT-29 cells and displays cytotoxic activity on HT-29 cells[2]. Lactoferrin 17-41 acetate variously regulats transcription of genes involved in the p53 signaling pathway, such as PMAIP-1, TP5313, and SFN[2]. Lactoferrin 17-41 acetate can bind LPS from Gram-negative bacteria and that it can inhibit LPS induced cytokine response in human monocytic cells[1][3].
Cell Viability Assay[1] 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. |
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Sequence | Phe-Lys-Cys-Arg-Arg-Trp-Gln-Trp-Arg-Met-Lys-Lys-Leu-Gly-Ala-Pro-Ser-Ile-Thr-Cys-Val-Arg-Arg-Ala-Phe (Disulfide bridge: Cys3-Cys20) |
Sequence Shortening | FKCRRWQWRMKKLGAPSITCVRRAF (Disulfide bridge: Cys3-Cys20) |
运输条件 | Room temperature in continental US; may vary elsewhere. |
储存方式 | Sealed storage, away from moisture and light Powder | -80°C | 2 years | | -20°C | 1 year |
*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light) |
溶解性数据 | In Vitro: DMSO : 20 mg/mL(6.28 mM;ultrasonic and warming and heat to 60℃) 配制储备液 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℃, 6 months; -20℃, 1 month (sealed storage, away from moisture and light)。-80℃ 储存时,请在 6 个月内使用,-20℃ 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-CDin 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 μL20% 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。 *以上所有助溶剂都可在本网站选购。
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