Recognizes ORAI3. This antibody is predicted to have no cross-reactivity to ORAI1 or ORAI2. Larger molecular weight bands are sometimes seen in SDS-PAGE, these may represent post-translationally modified ORAI3.
Characteristics
Synonyms: TMEM142C, ORAI-3, Transmembrane Protein 142C
Purification
Immunoaffinity Chromotography.
Immunogen
A 19 amino acid peptide from near the carboxy terminus of Human ORAI3
ELISA. Western Blot: ORAI3 antibody can be used for detection of ORAI3 at 2-4 μg/mL. Immunohistochemistry: 2.5 μg/mL. Positive Control: Rat spleen tissue lysate. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
Restrictions
For Research Use only
Buffer
PBS containing 0.02 % Sodium Azide as preservative.
Preservative
Sodium azide
Precaution of Use
This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
4 °C
Storage Comment
Store the antibody undiluted at 2-8 °C. Shelf life: one year from despatch.
Antigen stimulation of immune cells triggers Ca++ entry t hrough Ca++ release-activated Ca++ (CRAC) channels. ORAI3 is one of two mammalian homologs to ORAI1, a recently identified four-transmembrane spanning protein that is an essential component of CRAC. All three homologs have been shown to function as Ca++ plasma membrane channels gated through interactions with STIM1, the store-activated endoplasmic reticulum Ca++ sensor. However, ORAI3 channels failed to produce detectable Ca++ selective currents in cells co-transfected with ORAI3 and STIM1, indicating that ORAI3 channels undergo a lesser degree of depotentiation than ORAI1 or ORAI2 (5). Na+ currents through ORAI1, 2 and 3 channels were equally inhibited by extracellular Ca++, indicating that each have similar affinities for Ca++ within the selectivity filter.Synonyms: ORAI-3, TMEM142C, Transmembrane Protein 142C