Abstract

1. The reversible inhibition of the oxidase activity of caeruloplasmin by cyanide was investigated. 2. The kinetics are unusual, being competitive but with the inhibited complex formed only during cycling. 3. Inhibitory concentrations of cyanide are comparable with that of caeruloplasmin. 4. One azide group completely inhibits a caeruloplasmin molecule but two cyanide groups are required. 5. The results suggest that azide binds to a half-reduced or fully reduced conformational isomer of the enzyme whereas cyanide binds to completely reoxidized isomers, and that inhibited complexes contain ligand bridges between copper atoms.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.