Sensing cellular stress through STIM proteins

Nat Chem Biol. 2011 Jul 18;7(8):488-92. doi: 10.1038/nchembio.619.

Abstract

In response to decreasing Ca2+ levels in the endoplasmic reticulum, STIM proteins couple with Orai channels in the plasma membrane, leading to Ca2+ influx into the cell. In addition to Ca2+-related endoplasmic reticulum stress, STIM proteins are emerging as general stress sensors that react to multiple stress signals to orchestrate Ca2+ signaling and homeostasis.

MeSH terms

  • Biosensing Techniques
  • Calcium / metabolism*
  • Calcium Channels / genetics
  • Calcium Channels / metabolism*
  • Calcium Signaling / physiology*
  • Endoplasmic Reticulum / metabolism*
  • Gene Expression Regulation / physiology
  • Membrane Proteins / genetics
  • Membrane Proteins / metabolism*
  • Stress, Physiological / physiology*
  • Temperature

Substances

  • Calcium Channels
  • Membrane Proteins
  • Calcium