English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Superoxide reductases (SORs) are small metalloenzymes, which catalyze reduction of O 2  −  to H 2 O 2 . The reaction of the enzyme from  Treponema pallidum  with superoxide was studied by pulse radiolysis methods. The first step is an extremely fast bi‐molecular reaction of the ferrous center with O 2  − , with a rate constant of 6×10 8  M −1  s −1 . A first intermediate is formed which is converted to a second one with a slower rate constant of 4800 s −1 . This latter value is 10 times higher than the corresponding one previously reported in the case of SOR from  Desulfoarculus baarsii . The reconstituted spectra for the two intermediates are consistent with formation of transient iron‐peroxide species.

Pulse radiolysis studies on superoxide reductase from Treponema pallidum