The PEF family proteins sorcin and grancalcin interact in vivo and in vitro

Christian Hansen, Svetlana Tarabykina, Jonas M. La Cour, Karsten Lollike, Martin W. Berchtold

Publikation: Bidrag til tidsskriftTidsskriftsartikelForskningpeer review

Abstract

The penta-EF hand (PEF) family of calcium binding proteins includes grancalcin, peflin, sorcin, calpain large and small subunits as well as ALG-2. Systematic testing of the heterodimerization abilities of the PEF proteins using the yeast two-hybrid and glutathione S-transferase pull-down assays revealed the new finding that grancalcin interacts strongly with sorcin. In addition, sorcin and grancalcin can be co-immunoprecipitated from lysates of human umbilical vein endothelial cells. Our results indicate that heterodimerization, in addition to differential interactions with target proteins, might be a way to regulate and fine tune processes mediated by calcium binding proteins of the penta-EF hand type.

OriginalsprogEngelsk
TidsskriftFEBS Letters
Vol/bind545
Udgave nummer2-3
Sider (fra-til)151-154
Antal sider4
ISSN0014-5793
DOI
StatusUdgivet - 19 jun. 2003
Udgivet eksterntJa

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