Access

News and Views

Nature 418, 598-599 (8 August 2002) | doi:10.1038/418598b

Open Innovation Challenges

Structural biology: Calcium callisthenics

N. Michael Green1 & David H. MacLennan2

Top

The Ca2+-ATPase is one of the best characterized of the pumps that move ions across cell membranes. The latest snapshot of the pump in another of its many conformations is a major step in understanding its dynamics.

The action of skeletal muscle depends on the flow of calcium ions into and out of a storage compartment — the sarcoplasmic reticulum — in muscle cells. Release of Ca2+ into the cytosol stimulates muscle contraction.

  1. N. Michael Green is at the National Institute of Medical Research, Mill Hill, London NW7 1AA, UK.
    e-mail: Email: mgreen@nimr.mrc.ac.uk
  2. David H. MacLennan is in the Banting and Best Department of Medical Research, University of Toronto, Toronto, Ontario M5G 1L6, Canada.
    e-mail: Email: david.maclennan@utoronto.ca