The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
STIM1 Clusters and Activates CRAC Channels via Direct Binding of a Cytosolic Domain to Orai1
Open accessAbstract
SUMMARY Store-operated Ca2+ channels activated by the depletion of Ca2+ from the endoplasmic reticulum (ER) are a major Ca2+ entry pathway in non-excitable cells and are essential for T cell activation and adaptive immunity. Following store depletion, the ER Ca2+ sensor STIM1 and the CRAC channel protein Orai1 redistribute to ER-plasma membrane (PM) junctions, but the fundamental issue of how STIM1 activates the CRAC channel at these sites is unresolved. Here we identify a minimal, highly conserved 107-aa CRAC activation domain (CAD) of STIM1 that binds directly to the N- and C-termini of Orai1 to open the CRAC channel. Purified CAD forms a tetramer that clusters CRAC channels, but analysis of STIM1 mutants reveals that channel clustering is not sufficient for channel activation. These studies establish a molecular mechanism for store-operated Ca2+ entry in which the direct binding of STIM1 to Orai1 drives the accumulation and the activation of CRAC channels at ER-PM junctions.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Store-Operated Calcium Channels
Parekh, A. B., & Putney, J. W. (2005) · Physiological Reviews · doi:10.1152/physrev.00057.2003 · Cited by 2,089
Cited by
Intracellular Ca2+ Sensing: Its Role in Calcium Homeostasis and Signaling
Bagur, R., & Hajnóczky, G. (2017) · Molecular Cell · doi:10.1016/j.molcel.2017.05.028 · Cited by 815
Molecular Basis of Calcium Signaling in Lymphocytes: STIM and ORAI
Hogan, P. G., Lewis, R. S., & Rao, A. (2010) · Annual Review of Immunology · doi:10.1146/annurev.immunol.021908.132550 · Cited by 760
Self-citationOrganization and Function of Membrane Contact Sites
Helle, S. C. J., Kanfer, G., Kolar, K., Lang, A., Michel, A. H., & Kornmann, B. (2013) · Biochimica et Biophysica Acta (BBA) - Molecular Cell Research · doi:10.1016/j.bbamcr.2013.01.028 · Cited by 453
Ion channels and transporters in lymphocyte function and immunity
Feske, S., Skolnik, E. Y., & Prakriya, M. (2012) · Nature Reviews Immunology · doi:10.1038/nri3233 · Cited by 441
The ER in 3D: a multifunctional dynamic membrane network
Friedman, J. R., & Voeltz, G. K. (2011) · Trends in Cell Biology · doi:10.1016/j.tcb.2011.07.004 · Cited by 300
Metadata
- Authors
- Park, C. Y., Hoover, P. J., Mullins, F. M., Bachhawat, P., Covington, E. D., Raunser, S., Walz, T., Garcia, K. C., Dolmetsch, R. E., & Lewis, R. S.
- Venue
- Cell
- Publisher
- Elsevier BV
- Published
- 2009-03
- Volume
- 136
- Issue
- 5
- Pages
- 876-890
- ISSN
- 0092-8674 (ISSN-L)
- OpenAlex
- W2133603157
- Cited by
- 954
- References
- 1
- FWCI
- 37.37
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: STIM1 Clusters and Activates CRAC Channels via Direct Binding of a Cytosolic Domain to Orai1. https://app.cochat.ai/papers/10.1016/j.cell.2009.02.014
- The paper
- Park, C. Y., Hoover, P. J., Mullins, F. M., Bachhawat, P., Covington, E. D., Raunser, S., Walz, T., Garcia, K. C., Dolmetsch, R. E., & Lewis, R. S. (2009). STIM1 Clusters and Activates CRAC Channels via Direct Binding of a Cytosolic Domain to Orai1. Cell. https://doi.org/10.1016/j.cell.2009.02.014
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
