5.04908

Myeloperoxidase Inhibitor-II

• 别名: Myeloperoxidase Inhibitor-II, 4-(5-Fluoro-1H-indol-3-yl)butanamide, MPO Inhibitor II
• 经验公式（希尔记法）: C₁₂H₁₃FN₂O
• CAS号: 1256348-67-0
• 分子量: 220.24
• 分類程式碼代碼: 12352200

属性

• 化驗: ≥95% (HPLC)
• 品質等級: 100
• 形狀: powder
• 製造商／商標名: Calbiochem^®
• 儲存條件: OK to freeze; protect from light
• 顏色: light beige
• 溶解度: DMSO: 100 mg/mL
• 儲存溫度: 2-8°C

说明

一般說明

A 5-fluorotryptamine derivative that inhibitis the MPO-catalyzed Cl^-/chloride-to-OCl^-/hypochlorite oxidation in the presence of H²O² (IC₅₀ = 18 nM by taurine/2-aminoethan-sulfonic acid chlorination assay) as well as MPO-mediated LDL ApoB-100 (ApoB100; apolipoprotein B-100) oxidation (IC₅₀ = 18 nM by ELISA) via direct affinity binding at the myeloperoxidase active site through ϖ-ϖ interaction between its indole and the the enzyme′s heme pyrrole ring D, while exhibiting much reduced affinity toward serotonin reuptake transporter/SERT (K_i = 631 nM). Kinetic studies reveal that the inhibitor acts as a good one-electron donor for the intermediate Compound I "Fe(IV)=O...Por^•+", facilitating the formation (k₃ = 1,6 x 10⁷ M^-1 s^-1) of Compound II (Fe(IV)-OH...Por) and thereby preventing the reduction of Compound I directly to the resting state "Fe(IV)...Por" via the "halogenation cycle", while, on the other hand, behaves as a poor electron donor for Compound II, thereby preventing the completion of the "peroxidase cycle" by stalling the further reduction of Compound II to the resting state (k₄ = 92 M^-1 s^-1). Toxicology study using Wistar Han male rats reports no signs of adverse effects post single 10 mg/kg i.p. dosage, while signs of adverse effects are observed within the 24 h, but not after, post a higher i.p. dosage at 100 mg/kg.

A 5-fluorotryptamine derivative that inhibits myeloperoxidase/MPO activity (IC₅₀ = 18 nM) via direct affinity interaction with enzyme active site heme pyrrole ring D, while exhibiting much reduced affinity toward serotonin reuptake transporter/SERT (K_i = 631 nM). Kinetic studies reveal that the inhibitor acts as a good one-electron donor for the intermediate Compound I "Fe(IV)=O...Por^•+", facilitating the formation of Compound II (Fe(IV)-OH...Por) and thereby preventing the reduction of Compound I directly to the resting state "Fe(IV)...Por" via the "halogenation cycle", while, on the other hand, behaves as a poor electron donor for Compound II, thereby preventing the completion of the "peroxidase cycle" by stalling the further reduction of Compound II to the resting state.

Please note that the molecular weight for this compound is batch-specific due to variable water content.

生化／生理作用

Cell permeable: yes

Primary Target
myeloperoxidase

Reversible: yes

包裝

Packaged under inert gas

警告

Toxicity: Standard Handling (A)

重構

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.

Use only fresh DMSO for reconstitution.

其他說明

Soubhye, J., et al. 2013. J. Med. Chem.56, 3943.
Soubhye, J., et al. 2010. J. Med. Chem.53, 8747.

法律資訊

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

安全信息

• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable