Backbone 1H, 13C, and 15N chemical shift assignments for C. elegans STIM EF-SAM (form 1) in the absence of calcium.

Coordination of a single calcium ion in the EF-hand maintains the off state of the stromal interaction molecule luminal domain.

Residues -5 to 0 are residual cloning artifact residues.
Residues 23 to 192 are native protein residues.

stromal interaction molecule-1 [Caenorhabditis elegans]

X-ray crystal structure of C. elegans STIM EF-SAM domain

Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax