Product Details
| Alternative Name: | Stromal interaction molecule 2 |
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| Host: | Rabbit |
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| Immunogen: | Synthetic peptide corresponding to aa 583-597 (S583AEKQWEVPDTASEC597) of human STIM2. |
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| UniProt ID: | Q13586 |
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| Species reactivity: | Rat
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| Applications: | WB
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| Recommended Dilutions/Conditions: | Western Blot (1:200)
Suggested dilutions/conditions may not be available for all applications.
Optimal conditions must be determined individually for each application. |
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| Blocking Peptide: | 40μg included. Lyophilized. Reconstitute with 100μl distilled water.
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| Purity Detail: | Affinity purified. |
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| Formulation: | Lyophilized from PBS, pH 7.4, containing 1% BSA and 0.05% sodium azide. |
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| Reconstitution: | Reconstitute with 50μl or 200μl distilled water. Further dilutions should be made with medium containing a carrier protein such as 1% BSA. |
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| Use/Stability: | The antibody solution can be stored at +4°C for up to 2 weeks. |
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| Handling: | Avoid freeze/thaw cycles. After reconstitution, prepare aliquots and store at -20°C. |
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| Shipping: | Blue Ice |
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| Long Term Storage: | -20°C |
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| Scientific Background: | Cytosolic calcium (Ca2+) has long been known to act as a key second messenger in many intracellular pathways including synaptic transmission, muscle contraction, hormonal secretion, cell growth and proliferation. The mechanism controlling intracellular Ca2+ level influx either by the calcium-release-activated Ca2+ channels (CRAC), or from intracellular stores, has become of great interest to researchers. Several key players of the store operated complex have been identified; the Orai family consisting of three members, Orai1-3, and the STIM family, which consists of two members, STIM1 and STIM2. Orai1 (also known as CRACM1) acts as the store-operated calcium channel (SOC) and STIM1 as the endoplasmic reticulum Ca2+ sensor. The majority of STIM1 appears to be localized intracellularly at the ER membrane while low expression of STIM1 has been detected on the cell surface of several cell types. STIM2 appears to be localized solely at the ER membrane. |
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| Technical Info/Product Notes: | Preadsorption control: 1µg peptide per 1µg antibody. Prepare 2 tubes. In the first, dilute the necessary amount of antibody in 200-500µl of PBS, 1% BSA and 0.025% sodium azide. Prepare the second tube identically to the first with the addition of the appropriate amount of peptide. Incubate at room temperature for 1 hr. Centrifuge both tubes at 10,000Xg for 5 min. Use the supernatants from tubes 1 and 2 for parallel experiments. |
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| Regulatory Status: | RUO - Research Use Only |
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Figure: Western blot analysis of rat brain lysate (lanes 1 & 3) and RBL cell line lysate (lanes 2 & 4). Lanes 1, 2: PAb to STIM2 (rat) (Prod. No.
BML-SA677) Lanes 3, 4: PAb to STIM2 (rat) preincubated with the control peptide."
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General Literature References
Biochemical properties and cellular localisation of STIM proteins: M.A Dziadek & L.S. Johnstone; Cell Calcium
42, 123 (2007),
Abstract;
A mutation in Orai1 causes immune deficiency by abrogating CRAC channel function: S. Feske, et al.; Nature
441, 179 (2006),
Abstract;
Calcium signaling in non-excitable cells: Ca2+ release and influx are independent events linked to two plasma membrane Ca2+ entry channels: R. Chakrabarti & R. Chakrabarti; J. Cell. Biochem.
99, 1503 (2006),
Abstract;
Calcium: You lose some, you gain some: J. Pickett; Nat. Rev. Mol. Cell Biol. 7, 794 (2006),
Stability and instability of regulation of intracellular calcium: D.A. Eisner, et al.; Exp. Physiol.
90, 3 (2004),
Abstract;
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