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Difference between revisions of "Myxothiazol"

From Bioblast
(added Template:Chemical_description)
(replaced 99.9 % ethanol by ethanol abs.)
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::::'''Preparation of 1 mM storage and stock solution''' (dissolved in 99.9% ethanol) for '''2-mL O2k-chamber''':
::::'''Preparation of 1 mM storage and stock solution''' (dissolved in ethanol abs.) for '''2-mL O2k-chamber''':
::::# Weigh 1 mg of myxothiazol into a small glass vial.
::::# Weigh 1 mg of myxothiazol into a small glass vial.
::::# Add 2.05 mL ethanol.
::::# Add 2.05 mL ethanol.
Line 38: Line 38:




::::'''Preparation of 0.25mM stock solution''' (dissolved in 99.9% ethanol) for '''0.5-mL O2k-chamber''':
::::'''Preparation of 0.25mM stock solution''' (dissolved in ethanol abs.) for '''0.5-mL O2k-chamber''':
::::# Take 100 µL of the 1 mM stock solution.
::::# Take 100 µL of the 1 mM stock solution.
::::# Add 300 µL ethanol.
::::# Add 300 µL ethanol.

Revision as of 11:55, 22 June 2021


high-resolution terminology - matching measurements at high-resolution


Myxothiazol

Description

Myxothiazol, Myx, is an inhibitor of Complex III (CIII). CIII also inhibits CI (G. Lenaz). Myxothiazol binds to the Qo site of CIII (close to cytochrome bL) and inhibits the transfer of electrons from reduced QH2 to the Rieske iron sulfur protein.

Abbreviation: Myx

Reference: MiPNet09.12

Application in HRR

Myx: Myxothiazol (from Myxobacterium myxococcus fulvus; C25H33N3O3S2), Sigma-Aldrich: T5580, store at 4 °C, CAS: 76706-55-3, M = 487.7 g·mol-1
Hazard statements: H300; fatal if swallowed
Available again from Sigma with this new product number. The old product number was M 5779.


Preparation of 1 mM storage and stock solution (dissolved in ethanol abs.) for 2-mL O2k-chamber:
  1. Weigh 1 mg of myxothiazol into a small glass vial.
  2. Add 2.05 mL ethanol.
  3. Divide into 0.2 mL (use glass vials).
  4. Store at -20 °C.
»O2k manual titrations MiPNet09.12
  • Titration volume (2-mL O2k-chamber): 1 µL using a 10 µL Hamilton syringe.
  • Final concentration: 0.5 µM.


Preparation of 0.25mM stock solution (dissolved in ethanol abs.) for 0.5-mL O2k-chamber:
  1. Take 100 µL of the 1 mM stock solution.
  2. Add 300 µL ethanol.
»O2k manual titrations MiPNet09.12
  • Titration volume (0.5-mL O2k-chamber): 1 µL using a 10 µL Hamilton syringe.
  • Final concentration: 0.5 µM.

Compare

  • Antimycin A is less expensive than Myx but induces higher ROS production.







MitoPedia topics: Inhibitor