1. Metabolic Enzyme/Protease Anti-infection
  2. Endogenous Metabolite Bacterial
  3. Pyochelin

Pyochelin 是一种基于水杨酸盐的非核糖体肽铁载体,可由铜绿假单胞菌产生。Pyochelin 过螯合 Fe³⁺​ 并将其转运回细菌细胞,为细菌提供生存所必需的铁元素。Pyochelin 还能螯合 Zn²⁺、Co²⁺、Ni²⁺ 等其他金属,有助于细菌在应对有毒金属胁迫时,通过螯合和排出过量金属来维持胞内金属离子稳态。Pyochelin 可用于铜绿假单胞菌感染的相关研究。

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Pyochelin

Pyochelin Chemical Structure

CAS No. : 79236-62-7

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  • 生物活性

  • 纯度 & 产品资料

  • 参考文献

生物活性

Pyochelin is a salicylate-based nonribosomal peptide siderophore produced by Pseudomonas aeruginosa. Pyochelin chelates Fe3+ and transports it back into bacterial cells, providing the iron essential for bacterial survival. Pyochelin can also chelate other metals such as Zn2+, Co2+, and Ni2+, which helps bacteria maintain intracellular metal ion homeostasis by chelating and excreting excess metals in response to toxic metal stress. Pyochelin can be used in studies related to Pseudomonas aeruginosa infection[1][2][3].

体外研究
(In Vitro)

Pyochelin 是铜绿假单胞菌的低亲和力铁载体,可螯合 Fe3+,稳定常数为 0.2 μM,并通过 FptA 和 FptX 介导其摄取,同时通过 PchR 和 Fur 系统调控自身的生物合成[1]
Pyochelin 可螯合 Fe3+ 以外的多种金属离子,包括 Zn2+、Cu2+、Co2+、Mo6+、Ni2+ 和 Ga3+;它可通过 FptA 介导 Co2+ 和 Ni2+ 的低速率摄取,并通过减少细胞内金属过载增强 铜绿假单胞菌 对有毒金属的耐受性[1]
Pyochelin 是由铜绿假单胞菌通过涉及 PchA、PchB、PchD、PchE、PchF 和 PchG 的多酶途径合成的非核糖体肽,以水杨酸盐和半胱氨酸作为前体分子[1]
Pyochelin 可螯合三价铁,供铜绿假单胞菌通过外膜转运蛋白 FptA 摄取;其内膜转运分为两条途径:一是通过 FptX 直接转运 PCH-Fe3+ (效率为 50%),二是通过 PchHI 和 FepBCDG 转运游离铁;且 FptX 介导的摄取会触发一个自调控环路,调控 pyochelin 的合成与摄取[2]
Pyochelin 可与细胞内钴形成复合物,该复合物会通过 MacB 转运体从铜绿假单胞菌中排出,以缓解钴毒性[2]

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

分子量

324.42

Formula

C14H16N2O3S2

CAS 号
结构分类
初始来源

Pseudomonas aeruginosa

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
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