1. Anti-infection
  2. Bacterial
  3. KF-22

KF-22 是一种抗菌肽,对革兰氏阴性和革兰氏阳性菌均表现出抗菌活性。KF-22 具有广谱强效的抗多重耐药细菌活性和低毒性。KF-22 可用于感染方面的研究。

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Custom Peptide Synthesis

KF-22

KF-22 Chemical Structure

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  • 生物活性

  • 纯度 & 产品资料

  • 参考文献

生物活性

KF-22 is an antimicrobial peptide that exhibits antimicrobial activity against both Gram-negative and Gram-positive bacteria. KF-22 demonstrates broad-spectrum, potent activity against multidrug-resistant bacteria with low toxicity. KF-22 can be used in research related to infections[1].

体外研究
(In Vitro)

KF-22 (18-24 小时) 对 21 株多重耐药革兰氏阴性菌和革兰氏阳性菌具有强效广谱抗菌活性,其 MIC 范围为 1.25 至 5 μg/mL[1]
KF-22 (0-320 μg/mL;1-24 小时) 对小鼠红细胞的溶血活性较低,在浓度 > 120 μg/mL 时对 HEK 293 细胞具有中等毒性,而对 RAW 264.7 细胞的细胞毒性更低[1]
KF-22 (1-10 μg/mL) 以浓度依赖的方式破坏 A. baumannii ATCC 19606 和 S. aureus ATCC 25923 的细胞质膜电位[1]
KF-22 (0-20 μg/mL;1 小时) 可呈剂量依赖性破坏 A. baumannii ATCC 19606 和 S. aureus ATCC 25923 的外膜和细胞质膜[1]
KF-22 (0-20 μg/mL;24 小时) 可呈剂量依赖性抑制 A. baumannii ATCC 19606 和 S. aureus ATCC 25923 的生物膜形成,并清除其预先形成的生物膜[1]

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

体内研究
(In Vivo)

KF-22 (5-10 mg/kg;腹腔注射;每日 1 次;连续 3 天) 可提高感染 A. baumannii ATCC 19606 的小鼠存活率[1]
KF-22 (2-8 mg/kg;腹腔注射;感染后 1 小时单剂量给药) 在感染 A. baumannii ATCC 19606 的中性粒细胞减少症小鼠中具有抗菌作用[1]

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

Animal Model: C57BL/6J mice (female, 6-8 weeks old, 18 ± 2 g, intraperitoneally infected with A. baumannii ATCC 19606)[1]
Dosage: 5 mg/kg; 10 mg/kg
Administration: i.p.; daily; 3 days
Result: Achieved 62.5% survival rate over 7 days at 5 mg/kg.
Achieved 75% survival rate over 7 days at 10 mg/kg.
Animal Model: C57BL/6J mice (female, 6-8 weeks old, 18 ± 2 g, neutropenia induced by cyclophosphamide (HY-17420), then intraperitoneally infected with Acinetobacter baumannii ATCC 19606)[1]
Dosage: 2 mg/kg; 4 mg/kg; 8 mg/kg
Administration: i.p.; single dose 1 hour post-infection
Result: Reduced bacterial load in kidney, liver, lung, and spleen.
Significantly decreased proinflammatory cytokine (TNF-α, IL-1β) production in kidney and lung homogenates.
Showed no significant pathological changes in kidney, liver, lung, or spleen via H&E staining.
分子量

2882.54

Formula

C137H229N41O27

Sequence

Lys-Phe-Phe-Arg-Lys-Leu-Lys-Lys-Ser-Phe-Lys-Arg-Ile-Val-Gln-Arg-Ile-Lys-Asp-Phe-Leu-Arg

Sequence Shortening

KFFRKLKKSFKRIVQRIKDFLR

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

纯度 & 产品资料
参考文献
  • 摩尔计算器

  • 稀释计算器

The molarity calculator equation

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

质量   浓度   体积   分子量 *
= × ×

The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start) × 体积 (start) = 浓度 (final) × 体积 (final)
× = ×
C1   V1   C2   V2
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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产品名称:
KF-22
目录号:
HY-P11634
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