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  1. An unusual Co–S bond links B 12 chaperones in an interprotein complex
  2. Gut sulfide metabolism modulates behavior and brain bioenergetics
  3. H 2 S preconditioning induces long-lived perturbations in O 2 metabolism
  4. Bivalent molecular mimicry by ADP protects metal redox state and promotes coenzyme B 12 repair
  5. Mobile loop dynamics in adenosyltransferase control binding and reactivity of coenzyme B 12
  6. Time line of redox events in aging postmitotic cells