[thioredoxin]-dithiol + H2O2 => [thioredoxin]-disulfide + 2 H2O
[thioredoxin]-dithiol + h2o2 => [thioredoxin]-disulfide + 2 h2o
[thioredoxin]-dithiol + H2O2 => [thioredoxin]-disulfide + 2 H2O
[thioredoxin]-dithiol + h2o2 => [thioredoxin]-disulfide + 2 h2o