The PerR transcription factor senses H2O2 by metal-catalyzed histidine oxidation

Article Abstract:

A demonstration that PerR senses peroxides by metal-catalyzed oxidation is presented. PerR contains two metal-binding sites, a structural Zn(super 2+) site and a regulatory divalent metal ion site that preferentially bind Fe(super 2+) or Mn(super 2+).

Oxidation-reduction reaction, Oxidation-reduction reactions, Histidine, Structure, Chemical properties

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Let's twist again

Article Abstract:

Researchers have provided evidence for chiral magnetic order in a strikingly simple solid-state system, a single layer of manganese atoms on a tungsten substrate. The results have illustrated some unusual mesoscopic-scale magnetic textures.

Tungsten Compounds, Magnetic properties

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Schizophrenic electrons

Article Abstract:

The article discusses a high-temperature superconductor, yttrium barium copper oxide (YBCO). The YBCO exhibit electron pockets created by reconstruction of the Fermi surface through a density wave.

Science & research, Research, Superconductors, Electron mobility, Electron-electron interactions, Atomic properties

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