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Anti-IP3 Receptor-2 (ITPR2)-ATTO Fluor-594 Antibody

Inositol 1,4,5-trisphosphate receptor type 2, IP3R2, InsP3R2, IP3 receptor isoform 2

Cat #: ACC-116-AR
Alternative Name Inositol 1,4,5-trisphosphate receptor type 2, IP3R2, InsP3R2, IP3 receptor isoform 2
Lyophilized Powder yes
Type: Polyclonal
Host: Rabbit
Reactivity: r
  • Peptide (C)RLGFLGSNTPHENH, corresponding to amino acid residues 2683-2696 of rat IP3R2 (Accession P29995). Intracellular, C-terminus.
Accession (Uniprot) Number P29995
Gene ID 81678
Peptide confirmation Confirmed by amino acid analysis and mass spectrometry.
Homology Mouse, human - 13/14 amino acid residues identical.
RRID AB_2340911.
Purity Affinity purified on immobilized antigen.
Form Lyophilized powder. Reconstituted antibody contains phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.05% NaN3.
Isotype Rabbit IgG.
Label ATTO-594. Maximum absorption 601 nm; maximum fluorescence 627 nm. The fluorescence is excited most efficiently in the 580 - 615 nm range. This label is related to the Rhodamine dyes and can be used with filters used to detect Texas Red and Alexa-594.
Storage before reconstitution The antibody ships as a lyophilized powder at room temperature. Upon arrival, it should be stored at -20°C.
Reconstitution 50 µl double distilled water (DDW).
Antibody concentration after reconstitution 1 mg/ml.
Storage after reconstitution The reconstituted solution can be stored at 4°C, protected from the light, for up to 1 week. For longer periods, small aliquots should be stored at -20°C. Avoid multiple freezing and thawing. Centrifuge all antibody preparations before use (10000 × g 5 min).
Standard quality control of each lot Western blot analysis (unlabeled antibody, #ACC-116), and immunohistochemistry (labeled antibody).
Applications: if, ih
May also work in: ic*
  • Expression of IP3R2 in rat spinal cord
    Expression of IP3R2 in rat spinal cord
    Immunohistochemical staining of rat spinal cord using Anti-IP3 Receptor-2 (ITPR2)-ATTO Fluor-594 Antibody (#ACC-116-AR), (1:60). A. IP3R2 immunoreactivity (red) appears in neuronal soma (horizontal arrows) and processes (vertical arrows). B. Nuclear staining using DAPI as the counterstain (blue). C. Merged images of A and B.
  1. Furuichi, T. et al. (1989) Nature 342, 32.
  2. Berridge, M.J. et al. (2003) Nat. Rev. Mol. Cell Biol. 4, 517.
  3. Furuichi, T. et al. (1994) Curr. Opin. Neurobiol. 4, 294.
  4. Varnai, P. et al. (2005) Proc. Natl. Acad. Sci. U.S.A. 102, 7859.
  5. Fujino, I. et al. (1995) Cell Tissue Res. 280, 201.
  6. Yaroslavskiy, B.B. et al. (2007) J. Cell Sci. 120, 2884.
Scientific background

Inositol 1,4,5-trisphosphate receptors (IP3R) are intracellular Ca2+ release channels located on the endoplasmic reticulum (ER) and mediate Ca2+ mobilization from the ER to the cytoplasm in response to the binding of the second messenger, inositol 1,4,5-trisphosphate (IP3)1. IP3-induced Ca2+ release is triggered by various external stimuli, and most non-excitable cells use this mechanism as the primary Ca2+ signaling pathway. IP3Rs are therefore thought to have important physiological roles in various cell types and tissues2.

Three subtypes of IP3Rs, derived from three distinct genes, have been identified in mammals3. All three receptors have six transmembrane domains and a pore region between TM5 and TM6. The N-terminus as well as the C-terminus are cytoplasmic. Each IP3R consists of an N-terminal ligand binding domain (LBD) and a C-terminal domain which is linked by a long regulatory domain. The C-terminus is constitutively active, suggesting that the regulatory domain is required to maintain the suppression of channel activity4

Type 2 IP3R (IP3R2) is expressed in various tissues and cell lines. IP3R2 mRNA is localized in the intralobular duct cells of the submandibular gland, the urinary tubule cells of the kidney, the epithelial cells of epididymal ducts and the follicular granulosa cells of the ovary5. IP3R2 is active during osteoclast differentiation, and its absence causes a partial defect in osteoclastic differentiation.

Application key:

CBE- Cell-based ELISA, FC- Flow cytometry, ICC- Immunocytochemistry, IE- Indirect ELISA, IF- Immunofluorescence, IFC- Indirect flow cytometry, IHC- Immunohistochemistry, IP- Immunoprecipitation, LCI- Live cell imaging, N- Neutralization, WB- Western blot

Species reactivity key:

H- Human, M- Mouse, R- Rat
Last update: 08/01/2023

Anti-IP3 Receptor-2 (ITPR2) Antibody (#ACC-116) is a highly specific antibody directed against an epitope of the rat protein. The antibody can be used in western blot and immunohistochemistry applications. It has been designed to recognize IP3R2 from rat, mouse and human samples.

Anti-IP3 Receptor-2 (ITPR2)-ATTO Fluor-594 Antibody (#ACC-116-AR) is directly labeled with an ATTO-594 fluorescent dye. ATTO dyes are characterized by strong absorption (high extinction coefficient), high fluorescence quantum yield, and high photo-stability. The ATTO-594 fluorescent label belongs to the class of Rhodamine dyes and can be used with fluorescent equipment typically optimized to detect Texas Red and Alexa-594. Anti-IP3 Receptor-2 (ITPR2)-ATTO Fluor-594 Antibody has been tested in immunohistochemistry applications and is especially suited for experiments requiring simultaneous labeling of different markers.

For research purposes only, not for human use
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