Anti-Orai1 Antibody Picoband®

Overview

Anti-Orai1 Antibody Picoband® is an antibody targeting ORAI1. Common applications include WB, IHC, Flow Cytometry, ELISA. Key specifications include host: Rabbit; clonality: Polyclonal; isotype: Rabbit IgG; reactivity: Human,Mouse,Rat; observed MW: 50 kDa; calculated MW: 32668 MW.

Boster Bio Anti-Orai1 Antibody catalog # PA1857. Tested in WB applications. This antibody reacts with Human, Mouse, Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.

Key elements and design rationale

• Target: ORAI1 — Calcium release-activated calcium channel protein 1
• Antibody format: Host: Rabbit; Clonality: Polyclonal; Isotype: Rabbit IgG
• Species reactivity: Human,Mouse,Rat
• Molecular weight guidance: Observed: 50 kDa; Calculated: 32668 MW

Specificity note: No cross reactivity with other proteins.

Biological background

Protein function (datasheet): Ca (2+) release-activated Ca (2+) (CRAC) channel subunit which mediates Ca (2+) influx following depletion of intracellular Ca (2+) stores and channel activation by the Ca (2+) sensor, STIM1. CRAC channels are the main pathway for Ca (2+) influx in T-cells and promote the immune response to pathogens by activating the transcription factor NFAT. .

Scientific background (datasheet): ORAI1 (ORAI calcium release-activated calcium modulator 1), also known as CRACM1, TMEM142A, Calcium release-activated calcium channel protein 1, Protein orai-1, Transmembrane protein 142A, FLJ14466, is a calcium selective ion channel that in humans is encoded by the ORAI1 gene. Orai1 channels play an important role in the activation of T-lymphocytes. The loss of function mutation of Orai1 causes severe combined immunodeficiency (SCID) in humans. The mammalian orai family has two additional homologs, orai2 and orai3. Orai proteins share no homology with any other ion channel family of any other known proteins. They have 4 transmembrane domains and form tetramers. Prakriya et al. (2006) showed that ORAI1 is a PM protein, and that CRAC channel function is sensitive to mutation of 2 conserved acidic residues in the transmembrane segments. Glu106-to-asp (E106D) and glu190-to-gln (E190Q) substitutions in transmembrane helices 1 and 3, respectively, diminished calcium ion influx, increased current carried by monovalent cations, and rendered the channel permeable to cesium ion. Prakriya et al. (2006) showed that ORAI1 is a PM protein, and that CRAC channel function is sensitive to mutation of 2 conserved acidic residues in the transmembrane segments.

Cellular localization (datasheet): Cell membrane ; Multi-pass membrane protein . Cytoplasmic vesicle, autophagosome . Isoform beta is more mobile in the plasma membrane. Colocalizes with UBQLN1 in the autophagosome. .

Tissue details (datasheet): Bone marrow, testis and kidney. Isoform 4 is detected in all bladder tumor and prostate tumor cells. .

Sequence similarities (datasheet): Belongs to the Orai family.

Research relevance and current trends

• Commonly studied in contexts related to Adaptive Immunity,Calcium Channels,Calcium Signaling,Immunology,Non-CD,Signal Transduction,Signaling Pathway,T Cells.
• Supports comparative expression analysis across conditions, genotypes, or treatments when paired with appropriate controls.
• Useful for confirming target presence and subcellular distribution using orthogonal readouts (e.g., microscopy vs. immunoblotting).

Common research applications

• Western blot (WB): Compare relative target abundance and apparent size/isoforms across samples; interpret bands in light of expected MW and potential PTMs.
• ELISA: Measure target abundance in compatible matrices using a standard-curve readout; ensure dilution linearity and appropriate controls.
• Immunohistochemistry (IHC): Assess tissue distribution and cell-type patterns; interpret staining with appropriate negative controls and antigen context.
• Flow cytometry: Quantify target-positive populations in single-cell suspensions; pair with viability and isotype/FMO controls conceptually.

Notes for experimental interpretation

• Consider isoforms, post-translational modifications, and processing that can shift apparent molecular weight or localization.
• Cross-reactivity (datasheet): No cross-reactivity with other proteins
• Use appropriate positive and negative controls (e.g., KO/KD, blocking peptide, or isotype controls) to support specificity interpretation.

As a polyclonal antibody, this reagent may recognize multiple epitopes on the target, which can improve detection robustness but may require careful specificity controls.

Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.