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Trends Cell Biol. 2001 Mar;11(3):122-9.

The ins and outs of calreticulin: from the ER lumen to the extracellular space.

Author information

1
MRC Immunochemistry Unit, University of Oxford, Oxford, UK OX1 3QU. johnson@bioch.ox.ac.uk

Abstract

Calreticulin was first isolated 26 years ago. Since its discovery as a minor Ca(2+)-binding protein of the sarcoplasmic reticulum, the appreciation of its importance has grown, and it is now recognized to be a multifunctional protein, most abundant in the endoplasmic reticulum (ER). The protein has well-recognized physiological roles in the ER as a molecular chaperone and Ca(2+)-signalling molecule. However, it has also been found in other membrane-bound organelles, at the cell surface and in the extracellular environment, where it has recently been shown to exert a number of physiological and pathological effects. Here, we will focus on these less-well-characterized functions of calreticulin.

PMID:
11306273
DOI:
10.1016/s0962-8924(01)01926-2
[Indexed for MEDLINE]

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