- W18094A (See other available formats)
- Other Names
- Stromal Interaction Molecule 1, GOK, IMD10, TAM1, STRMK
- Rat IgG2b, λ
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- Product Citations
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Stromal Interaction Molecule 1, or STIM1 is a single pass transmembrane, resident ER protein that facilitates extracellular calcium uptake following the depletion of intracellular stores. STIM1 directly senses loss of ER-lumenal calcium via an EF hand domain; elevated ER calcium levels stimulate redistribution of STIM1 to close proximity to the plasma mebrane, where it activates ORAI1, a pore component of the store-operated calcium entry system.Product Details
- Antibody Type
- Host Species
- Partial recombinant human STIM1 protein corresponding to amino acid residues 436-685
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
- The antibody was purified by affinity chromatography.
- 0.5 mg/ml
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C.
WB - Quality tested
ICC, IP - Validated
- Recommended Usage
Each lot of this antibody is quality control tested by Western blotting. For Western blotting, the suggested use of this reagent is 0.1 - 1.0 µg per ml. For immunocytochemistry, a concentration range of 1.0 - 5.0 μg/ml is recommended. For immunoprecipitation, the suggested use of this reagent is 2.5 µg per ml. It is recommended that the reagent be titrated for optimal performance for each application.
- Application Notes
When testing W18094A testing for ICC, we observed poor staining of PFA-fixed cells that were permeabilized with methanol.
When testing W18094A for WB, a minor non-specific band of ~50 kD was observed by WB at higher antibody concentrations.
- STIM1 is a 685 amino acid protein with a predicted molecular weight of 77 kD.
ER Membrane/Ubiquitously expressed
- Calcium sensing and uptake
- Biology Area
- Cell Biology
- Molecular Family
- Innate Immune Signaling, Ions Channels
- Antigen References
- Roos J, et al. 2005. J. Cell Biol. 169:435.
- Peinelt C, et al. 2006. Nat Cell Biol. 8:771.
- Baba Y, et al. 2006. Proc Natl Acad Sci USA. 103:16704.
- Gene ID
- 6786 View all products for this Gene ID
- View information about STIM1 on UniProt.org
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