标签归档：cecropin

Cecropin B

发表于由

Cecropin B; 纯度: 95.33%

Cecropin B 有着高水平的抗菌活性，且是一种有价值的肽类抗菌素。

Cecropin Bamp;;

Cecropin B Chemical Structure

CAS No. : 80451-05-4

规格 价格 是否有货 数量
500 μg ￥900 In-stock
1 mg ￥1300 In-stock
5 mg ￥3900 In-stock
10 mg ￥6500 In-stock
50 mg ; 询价 ;
100 mg ; 询价 ;

* Please select Quantity before adding items.

Cecropin B 相关产品

bull;相关化合物库:

  • Bioactive Compound Library Plus
  • Peptide Library

生物活性

Cecropin B has high level of antimicrobial activity and is considered as a valuable peptide antibiotic.

体外研究
(In Vitro)

Cecropin B-induces NF-κB activation playing a pivotal role in the suppression of CYP3A29 through disrupting the association of the PXR/retinoid X receptor alpha (RXR-α) complex with DNA sequences. Cecropin B activates pig liver cells by interacting with TLRs 2 and 4, which modulated NF-κB-mediated signaling pathways[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
体内研究
(In Vivo)

The wounds are moist with more exudation in C group, while that in other groups are dry without obvious exudation. The body temperature of the majority of the mice in each group is elevated, but the number of leucocytes in each group is lowered after operation. The quantity of bacteria in muscle in A group is obviously lower than that in M group and C group. The number of surviving mice after 4 PID in C group is evidently smaller than that in A and M groups( P<0. 05)[2].

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

3834.67

Formula

C176H302N52O41S
CAS 号

80451-05-4
Sequence

Lys-Trp-Lys-Val-Phe-Lys-Lys-Ile-Glu-Lys-Met-Gly-Arg-Asn-Ile-Arg-Asn-Gly-Ile-Val-Lys-Ala-Gly-Pro-Ala-Ile-Ala-Val-Leu-Gly-Glu-Ala-Lys-Ala-Leu-NH2
Sequence Shortening

KWKVFKKIEKMGRNIRNGIVKAGPAIAVLGEAKAL-NH2
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式
Powder -80deg;C 2 years
-20deg;C 1 year
In solvent -80deg;C 6 months
-20deg;C 1 month
溶解性数据
In Vitro:;

H2O : 100 mg/mL (26.08 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 0.2608 mL 1.3039 mL 2.6078 mL
5 mM 0.0522 mL 0.2608 mL 0.5216 mL
10 mM 0.0261 mL 0.1304 mL 0.2608 mL

*

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。-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。
参考文献

  • [1]. Zhou X et al. Cecropin B Represses CYP3A29 Expression through Activation of the TLR2/4-NF-κB/PXR Signaling Pathway. Sci Rep. 2016 Jun 14

    [2]. Ren HT et al. [The antibacterial effect of cecropin B on pseudomonas aeruginosa infection of wounds in mice]. Zhonghua Shao Shang Za Zhi. 2006 Dec;22(6):445-7.
Animal Administration
[1]

Mice[1]
Thirty ICR mice are enrolled in the study, and the Pseudomonas aeruginosa infection model is reproduced by excision of the full layer of dorsal skin with an area of 1 cm x 1 cm. Then they are randomly divided into C (control, n=10, with wet compress of isotonic saline at 3 postinjury hour (PIH)) , M (with hydropathic compress of 100 g/L mafenide at 3 PIH), A (with wet compress of 1 000 mg/L Cecropin B at 3 PIH) groups. The changes in body temperature and hemogram in each group are determined before and 4 days after injury[2].

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

  • [1]. Zhou X et al. Cecropin B Represses CYP3A29 Expression through Activation of the TLR2/4-NF-κB/PXR Signaling Pathway. Sci Rep. 2016 Jun 14

    [2]. Ren HT et al. [The antibacterial effect of cecropin B on pseudomonas aeruginosa infection of wounds in mice]. Zhonghua Shao Shang Za Zhi. 2006 Dec;22(6):445-7.

Cecropin A

发表于由

Cecropin A;

Cecropin A 是一种由 37 个氨基酸组成的线性多肽，具有抗菌、抗肿瘤及抗炎的功效。

Cecropin Aamp;;

Cecropin A Chemical Structure

CAS No. : 80451-04-3

规格 是否有货
100 mg ; 询价 ;
250 mg ; 询价 ;
500 mg ; 询价 ;

* Please select Quantity before adding items.

Cecropin A 的其他形式现货产品:

Cecropin A TFA

生物活性

Cecropin A is a linear 37-residue antimicrobial polypeptide, with anticancer and anti-inflammatory activity.

IC50 Target

Bacterial[2]
体外研究
(In Vitro)

Cecropin A shows anticancer activity. Cecropin A (10-50 μM) dose-dependently reduces the viability of HL-60 cells. Cecropin A (30 μM) promotes ROS production, causes mitochondrial membrane potential (Δψm) collapse, and generates morphological changes in nuclear chromatin in HL-60 cells. Cecropin A (30 μM) also leads to an early apoptosis and cuases caspase-independent cell death in HL-60 cells[1]. Cecropin A has cytotoxicity on gram negative bacteria, including A. baumanii (CCARM 12005, CCARM 12035, CCARM 12036, CCARM 12037) with minimal inhibitory concentration (MIC) of 0.5-1 μM. Cecropin A (25 μM) significantly blocks the expression of mTNF-α, mIL-1β, and mMIP-2 mRNA and slightly inhibited the expression of mMIP-1 mRNA in RAW264.7 cells. Cecropin A (0.1, 0.25, 0.5, 1, 2.5, 5 μM) also inhibits NO production and reduces mTNF-α cytokine levels in LPS-stimulated RAW264.7 cells, and exihibits anti-inflammatory activity[2].

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

4003.78

Formula

C184H313N53O46
CAS 号

80451-04-3
Sequence

Lys-Trp-Lys-Leu-Phe-Lys-Lys-Ile-Glu-Lys-Val-Gly-Gln-Asn-Ile-Arg-Asp-Gly-Ile-Ile-Lys-Ala-Gly-Pro-Ala-Val-Ala-Val-Val-Gly-Gln-Ala-Thr-Gln-Ile-Ala-Lys-NH2
Sequence Shortening

KWKLFKKIEKVGQNIRDGIIKAGPAVAVVGQATQIAK-NH2
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.
参考文献

  • [1]. Cerón JM, et al. The antimicrobial peptide cecropin A induces caspase-independent cell death in human promyelocytic leukemia cells. Peptides. 2010 Aug;31(8):1494-503.

    [2]. Lee E, et al. Anti-inflammatory activities of cecropin A and its mechanism of action. Arch Insect Biochem Physiol. 2015 Jan;88(1):31-44.
Cell Assay
[1]

Briefly, 5 × 105 cells/mL in RPMI 1640 supplemented with 10% heat-inactivated FCS are placed onto 96-well plates. Cecropin A is added to cell cultures at a final concentration of 10, 20, 30, 40 and 50 μM and cells are incubated for 24 h at 37°C in a humidified atmosphere with 5% CO2. Then, 20 μL MTT (0.5 mg/mL) is added to each well and the plate is incubated for 4 h at 37°C. The MTT solution is removed and isopropyl alcohol containing 0.04 N hydrochloric acid is added to each well to dissolve the formazan crystal. Absorbance is determined on a spectrophotometric microplate reader at a test wavelength of 550 nm and a reference wavelength of 620 nm. The absorbance of the cells incubated in the absence of cecropin A (untreated cells) is set at 100%. Results are expressed as percentage of cell viability[1].

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

  • [1]. Cerón JM, et al. The antimicrobial peptide cecropin A induces caspase-independent cell death in human promyelocytic leukemia cells. Peptides. 2010 Aug;31(8):1494-503.

    [2]. Lee E, et al. Anti-inflammatory activities of cecropin A and its mechanism of action. Arch Insect Biochem Physiol. 2015 Jan;88(1):31-44.

Cecropin P1, porcine

发表于由

Cecropin P1, porcine;

Cecropin P1, porcine is an antibacterial peptide originally identified in moths (Hyalophora cecropia) and later in pig intestine.

Cecropin P1, porcineamp;;

Cecropin P1, porcine Chemical Structure

CAS No. : 125667-96-1

规格 价格 是否有货
1 mg ￥2900 询问价格 货期
5 mg ￥6500 询问价格 货期

* Please select Quantity before adding items.

生物活性

Cecropin P1, porcine is an antibacterial peptide originally identified in moths (Hyalophora cecropia) and later in pig intestine.

分子量

3338.86

Formula

C147H253N45O43
CAS 号

125667-96-1
Sequence

Ser-Trp-Leu-Ser-Lys-Thr-Ala-Lys-Lys-Leu-Glu-Asn-Ser-Ala-Lys-Lys-Arg-Ile-Ser-Glu-Gly-Ile-Ala-Ile-Ala-Ile-Gln-Gly-Gly-Pro-Arg
Sequence Shortening

SWLSKTAKKLENSAKKRISEGIAIAIQGGPR
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.