详情描述
HQNO is a potent respiratory inhibitor produced by Pseudomonas aeruginosa. It is a competitive inhibitor of quinone and targets the Q-site of NDH-2.
Product information
CAS Number: 341-88-8
Molecular Weight: 259.34
Formula: C16H21NO2
Chemical Name: 2-heptyl-4-hydroxyquinoline 1-oxide
Smiles: CCCCCCCC1=CC(O)=C2C=CC=CC2=[N+]1[O-]
InChiKey: NZPACTGCRWDXCJ-UHFFFAOYSA-N
InChi: InChI=1S/C16H21NO2/c1-2-3-4-5-6-9-13-12-16(18)14-10-7-8-11-15(14)17(13)19/h7-8,10-12,18H,2-6,9H2,1H3
Technical Data
Appearance: Solid Power
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: DMSO: 9 mg/mL(34.7 mM).
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥12 months if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined
HS Tariff Code: 382200
How to use
In Vitro:
HQNO is a potent inhibitor of mitochondrial type II NADH:quinone oxidoreductase (NDH-2) in many species, including Yarrowia lipolytica, S. cerevisiae, Gluconobacter oxydans, T. gondii, P. falciparum, and S. aureus. HQNO targets the Q-site of NDH-2. HQNO concentrations are varied from 0 to 100 μM and 0 to 300 μM for wild-type (WT) and I379E C. thermarum NDH-2 variant, respectively to determine IC50 values. WT NDH-2 has an IC50 value of 10.5±1.3 μM HQNO in the presence of 400 μM Menadione (MD). In the presence of 50 μM MD, the IC50 value for HQNO decreases slightly to 7.3±1.2 μM and near complete inhibition (~15% residual activity) is observed with >50 μM HQNO. At 50 μM MD, HQNO inhibition is observed with an IC50 value of 54.3±1.2 μM.
References:
- N J Jacobs, et al. Evidence for Involvement of the Electron Transport System at a Late Step of Anaerobic Microbial Heme Synthesis. Biochim Biophys Acta. 1977 Jan 6;459(1):141-4.
- Jessica Petri, et al. Structure of the NDH-2 - HQNO Inhibited Complex Provides Molecular Insight Into Quinone-Binding Site Inhibitors. Biochim Biophys Acta Bioenerg. 2018 Jul;1859(7):482-490.
Products are for research use only. Not for human use.