Enzyme Commission Number
EC 7.1.1.7
Product Overview
High-quality enzyme products.
Well-established quality management system.
Reaction
2 quinol + O2[side 2] + 4 H+[side 2] = 2 quinone + 2 H2O[side 2] + 4 H+[side 1] (overall reaction)
(1a) 2 quinol = 2 quinone + 4 H+[side 1] + 4 e-
(1b) O2[side 2] + 4 H+[side 2] + 4 e- = 2 H2O[side 2]
Systematic Name
quinol:oxygen oxidoreductase (electrogenic, non H+-transporting)
Function
This terminal oxidase enzyme is unable to pump protons but generates a proton motive force by transmembrane charge separation resulting from utilizing protons and electrons originating from opposite sides of the membrane to generate water. The bioenergetic efficiency (the number of charges driven across the membrane per electron used to reduce oxygen to water) is 1. The bd-I oxidase from the bacterium Escherichia coli is the predominant respiratory oxygen reductase that functions under microaerophilic conditions in that organism. cf. EC 7.1.1.3, ubiquinol oxidase (H+-transporting).
Other name
cydAB (gene names); appBC (gene names); cytochrome bd oxidase; cytochrome bd-I oxidase; cytochrome bd-II oxidase; ubiquinol:O2 oxidoreductase (electrogenic, non H+-transporting); ubiquinol oxidase (electrogenic, proton-motive force generating); ubiquinol oxidase (electrogenic, non H+-transporting)
Production Methods
Fermentation
Package
on customer request
Applications
Research Use
Storage
Should be stored in a dry and cool place, avoiding high temperature.
Appearance / Form
powder or liquid
Odor
Normal microbial fermentation odour.
WARNINGS
Keep sealed after use every time to avoid microbial infections and inactivation of enzymes until its finish.
Description
Microbial enzymes have been used in a large number of fields, such as chemical, agricultural and biopharmaceutical industries. Our enzyme production services are based on bacteria, fungi, and yeast, from strain selection, optimization, and process development to scale-up production.
