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Data · dataset · 2015

Generation and Application of a Novel InsP 3 R 1 Mono-Antibody from Mouse

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Inositol 1, 4, 5-Trisphosphate Receptor (InsP 3 R) is an intracellular Ca 2+ release channel, which widely participates in cellular processes.

Description

Three isoforms of InsP 3 R were identified as InsP 3 R 1 , InsP 3 R 2, and InsP 3 R 3 . They share 60–0% protein sequence homology and form a channel in a manner of homotetramer or heterotetramer.

Several InsP 3 R isoform-specific rabbit antibodies have been generated to distinguish their localization and functions. However, there is no report of such a valid antibody raised from other species. In his article, we prepare a mouse monoclonal antibody against a synthetic peptide with rat InsP 3 R 1 -specific carboxyl terminus sequence.

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This monoclonal antibody of InsP 3 R 1 (R1-mAb) was purified and characterized as IgG2b, which can recognize InsP 3 R 1 by Western-blot (WB) analysis and immunoprecipitate (IP) InsP 3 R 1 from moue brain lysate tested. Applied in immunofluorescent (IF) and immunohistochemical (IHC) assays, this antibody and rabbit polyclonal antibody could give the consistent results in SH-SY5Y cells, human sperm, and mouse brain paraffin section.

In summary, we generate a mouse InsP 3 R 1 -specific IgG 2b antibody identifying InsP 3 R 1 in WB, IF, IHC, and IP analysis, which provides a possible choice for detection of InsP 3 R 1 , especially in application of co-localization analysis with other InsP 3 R isoforms or other proteins.

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