Polymyxin B nonapeptide(Synonyms: 多粘菌素B九肽)

Polymyxin B nonapeptide;(Synonyms: 多粘菌素B九肽)

Polymyxin B nonapeptide 是一种阳离子环肽。Polymyxin B nonapeptide 是经酶裂解 Polymyxin B 而产生的衍生物,与 Polymyxin B 相比,Polymyxin B nonapeptide 毒性低,缺乏杀菌活性,仍具有破坏革兰氏阴性菌外膜的能力。

Polymyxin B nonapeptideamp;;(Synonyms: 多粘菌素B九肽)

Polymyxin B nonapeptide Chemical Structure

CAS No. : 86408-36-8

规格 价格 是否有货
10;mM;*;1 mL in DMSO ¥2650 询问价格 货期
5 mg ¥1500 询问价格 货期
10 mg ¥2500 询问价格 货期
50 mg ¥9500 询问价格 货期
100 mg ¥16500 询问价格 货期

* Please select Quantity before adding items.

Polymyxin B nonapeptide 的其他形式现货产品:

Polymyxin B nonapeptide TFA

生物活性

Polymyxin B nonapeptide is a cyclic peptide obtained from Polymyxin B by proteolytic removal of its terminal amino acyl residue[1]. Polymyxin B nonapeptide is less toxic, lacks bactericidal activity, and retains its ability to render gram-negative bacteria susceptible to several antibiotics by permeabilizing their outer membranes[2].

体外研究
(In Vitro)

Polymyxin B nonapeptide, a cationic cyclic peptide derived by enzymatic processing from the naturally occurring peptide polymyxin B, is able to increase the permeability of the outer membrane of Gram-negative bacteria toward hydrophobic antibiotics probably by binding to the bacterial lipopolysaccharide (LPS)[1].

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

分子量

963.13

Formula

C43H74N14O11

CAS 号

86408-36-8

Sequence

Thr-{Dab}-{Dab}-{Dab}-{Dab}-d-Phe-Leu-{Dab}-{Dab}-Thr (Lactam: Dab3-Thr9)

Sequence Shortening

T-{Dab}-{Dab}-{Dab}-{Dab}-d-FL-{Dab}-{Dab}-T (Lactam: Dab3-Thr9)

中文名称

多粘菌素B九肽

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Protect from light

Powder -80deg;C 2 years
-20deg;C 1 year

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

溶解性数据
In Vitro:;

H2O : ≥ 100 mg/mL (103.83 mM)

DMSO : 16.67 mg/mL (17.31 mM; Need ultrasonic)

* “≥” means soluble, but saturation unknown.

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 1.0383 mL 5.1914 mL 10.3828 mL
5 mM 0.2077 mL 1.0383 mL 2.0766 mL
10 mM 0.1038 mL 0.5191 mL 1.0383 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 (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: ≥ 1.67 mg/mL (1.73 mM); Clear solution

    此方案可获得 ≥ 1.67 mg/mL (1.73 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 16.7 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。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH₂O 中,得到澄清透明的生理盐水溶液

  • 2.

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

    Solubility: ≥ 1.67 mg/mL (1.73 mM); Clear solution

    此方案可获得 ≥ 1.67 mg/mL (1.73 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 16.7 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。

    将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定容至 10 mL,完全溶解,澄清透明
  • 3.

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

    Solubility: ≥ 1.67 mg/mL (1.73 mM); Clear solution

    此方案可获得 ≥ 1.67 mg/mL (1.73 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 16.7 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 MCE 网站选购。
参考文献
  • [1]. Tsubery H, et al. Structure-function studies of polymyxin B nonapeptide: implications to sensitization of gram-negative bacteria. J Med Chem. 2000 Aug 10;43(16):3085-92.

    [2]. Ofek I, et al. Antibacterial synergism of polymyxin B nonapeptide and hydrophobic antibiotics in experimental gram-negative infections in mice. Antimicrob Agents Chemother. 1994 Feb;38(2):374-7.

Nonapeptide-1 acetate salt(Synonyms: Melanostatine-5 acetate salt)

Nonapeptide-1 acetate salt;(Synonyms: Melanostatine-5 acetate salt) 纯度: 99.76%

Nonapeptide-1 acetate salt 是一种多肽激素,是强效的 α-黑色素细胞刺激激素 (α-MSH) 的拮抗剂,其 IC50 值为 11 nM。减少黑色素的合成,在很大程度上帮助减少皮肤色素沉着。

Nonapeptide-1 acetate saltamp;;(Synonyms: Melanostatine-5 acetate salt)

Nonapeptide-1 acetate salt Chemical Structure

规格 价格 是否有货 数量
10;mM;*;1 mL in Water ¥4460 In-stock
1 mg ¥800 In-stock
5 mg ¥2200 In-stock
10 mg ¥3200 In-stock
50 mg ; 询价 ;
100 mg ; 询价 ;

* Please select Quantity before adding items.

Nonapeptide-1 acetate salt 相关产品

bull;相关化合物库:

  • Bioactive Compound Library Plus
  • GPCR/G Protein Compound Library
  • Neuronal Signaling Compound Library
  • Macrocyclic Compound Library
  • Endocrinology Compound Library
  • Peptide Library

生物活性

Nonapeptide-1 acetate salt, a peptide hormone, is a potent α-Melanocyte-stimulating hormone (α-MSH) antagonist, with an IC50 of 11 nM. Reduces synthesis of melanin and helps decrease skin pigmentation to a substantial degree[1].

IC50 Target

IC50: 11 nM (α-MSH)[1].

分子量

1266.56

Formula

C63H91N15O11S

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Sealed storage, away from moisture

Powder -80deg;C 2 years
-20deg;C 1 year

*In solvent : -80deg;C, 6 months; -20deg;C, 1 month (sealed storage, away from moisture)

溶解性数据
In Vitro:;

H2O : 50 mg/mL (39.48 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 0.7895 mL 3.9477 mL 7.8954 mL
5 mM 0.1579 mL 0.7895 mL 1.5791 mL
10 mM 0.0790 mL 0.3948 mL 0.7895 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 (sealed storage, away from moisture)。-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]. Jayawickreme CK, et al. Discovery and structure-function analysis of alpha-melanocyte-stimulating hormone antagonists. J Biol Chem. 1994 Nov 25;269(47):29846-54.

Polymyxin B nonapeptide TFA

Polymyxin B nonapeptide TFA; 纯度: 99.80%

Polymyxin B nonapeptide TFA 是一种阳离子环肽。Polymyxin B nonapeptide TFA 是经酶裂解 Polymyxin B 而产生的衍生物,与 Polymyxin B 相比,Polymyxin B nonapeptide TFA 毒性低,缺乏杀菌活性,仍具有破坏革兰氏阴性菌外膜的能力。

Polymyxin B nonapeptide TFAamp;;

Polymyxin B nonapeptide TFA Chemical Structure

CAS No. : 2220175-42-6

规格 价格 是否有货 数量
10;mM;*;1 mL in Water ¥4220 In-stock
5 mg ¥1500 In-stock
10 mg ¥2500 In-stock
50 mg ¥9500 In-stock
100 mg ¥16500 In-stock
200 mg ; 询价 ;
500 mg ; 询价 ;

* Please select Quantity before adding items.

Polymyxin B nonapeptide TFA 相关产品

bull;相关化合物库:

  • Bioactive Compound Library Plus
  • Anti-Infection Compound Library
  • Macrocyclic Compound Library
  • Antibacterial Compound Library
  • Peptide Library

生物活性

Polymyxin B nonapeptide TFA is a cyclic peptide obtained from Polymyxin B by proteolytic removal of its terminal amino acyl residue[1]. Polymyxin B nonapeptide TFA is less toxic, lacks bactericidal activity, and retains its ability to render gram-negative bacteria susceptible to several antibiotics by permeabilizing their outer membranes[2].

体外研究
(In Vitro)

Polymyxin B nonapeptide, a cationic cyclic peptide derived by enzymatic processing from the naturally occurring peptide polymyxin B, is able to increase the permeability of the outer membrane of Gram-negative bacteria toward hydrophobic antibiotics probably by binding to the bacterial lipopolysaccharide (LPS)[1].

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

分子量

1533.25

Formula

C53H79F15N14O21

CAS 号

2220175-42-6

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Sealed storage, away from moisture

Powder -80deg;C 2 years
-20deg;C 1 year

*In solvent : -80deg;C, 6 months; -20deg;C, 1 month (sealed storage, away from moisture)

溶解性数据
In Vitro:;

H2O : 50 mg/mL (32.61 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 0.6522 mL 3.2610 mL 6.5221 mL
5 mM 0.1304 mL 0.6522 mL 1.3044 mL
10 mM 0.0652 mL 0.3261 mL 0.6522 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 (sealed storage, away from moisture)。-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]. Tsubery H, et al. Structure-function studies of polymyxin B nonapeptide: implications to sensitization of gram-negative bacteria. J Med Chem. 2000 Aug 10;43(16):3085-92.

    [2]. Ofek I, et al. Antibacterial synergism of polymyxin B nonapeptide and hydrophobic antibiotics in experimental gram-negative infections in mice. Antimicrob Agents Chemother. 1994 Feb;38(2):374-7.