ORAI1 antibody

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Rabbit anti ORAI1 (C-Terminal)

Product Type
Polyclonal Antibody
Isotype
Polyclonal IgG
Product CodeApplicationsDatasheetMSDSPack SizeList PriceQuantity
AHP1494 P* WB 0.1 mg
Rabbit anti Human ORAI1 antibody recognises human ORAI1, also known as Transmembrane protein 142A (TMEM142A), a 32.7 kDa multi-pass membrane protein belonging to the ORAI family.

Antigen stimulation of immune cells triggers Ca2+ entry through Ca2+ release-activated Ca2+ (CRAC) channels. CRAC channels are the main pathway for Ca2+ influx in T-cells and promote the immune response to pathogens by activating the transcription factor NFAT.

ORAI1 is a four- transmembrane spanning protein that is an essential component of CRAC. ORAI1 functions as a highly selective Ca2+ plasma membrane channel that is gated through interactions with STIM1, the store-activated endoplasmic reticulum Ca2+ sensor.

Defective ORAI1 in humans is the cause of one form of hereditary severe combined immune deficiency (SCID), which results in ablated T-cell Ca2+ entry.

Rabbit anti Human ORAI1 antibody ( AHP1494) is not expected to cross react with either ORAI2 or ORAI3.

Product Details

Target Species
Human
Species Cross-Reactivity
Target SpeciesCross Reactivity
Rat
Mouse
N.B. Antibody reactivity and working conditions may vary between species.
Product Form
Purified IgG - liquid
Antiserum Preparation
Antiserum to human ORAI1 was raised by repeated immunisation of rabbits with highly purified antigen. Purified IgG was prepared from whole serum by affinity chromatography.
Buffer Solution
Phosphate buffered saline
Preservative Stabilisers
0.02% Sodium Azide (NaN3)
Immunogen
A 16 amino acid peptide from near the carboxy terminus of human ORAI1.
Approx. Protein Concentrations
IgG concentration 1.0mg/ml

Storage Information

Storage
Store at +4oC or at -20oC if preferred.
Storage in frost-free freezers is not recommended.
This product should be stored undiluted. Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use.
Shelf Life
18 months from date of despatch.

More Information

UniProt
Q96D31 Related reagents
Entrez Gene
ORAI1 Related reagents
GO Terms
GO:0005515 protein binding
GO:0005887 integral to plasma membrane
GO:0015279 store-operated calcium channel activity
GO:0030168 platelet activation
GO:0051928 positive regulation of calcium ion transport
Regulatory
For research purposes only

Applications of ORAI1 antibody

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
Immunohistology - Paraffin 1
Western Blotting 0.5 1ug/ml
  1. 1 This product requires antigen retrieval using heat treatment prior to staining of paraffin sections. Sodium citrate buffer pH 6.0 is recommended for this purpose.
Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using appropriate negative/positive controls.
Western Blotting
AHP1494 detects a band of approximately 49kDa in 49 cell lysates.

Secondary Antibodies Available

Description Product Code Pack Size Applications List Price Quantity
Sheep anti Rabbit IgG:Biotin 2AB02B 1 ml C E P WB
Goat anti Rabbit IgG (Fc):Biotin STAR121B 1 mg E WB
Goat anti Rabbit IgG (Fc):FITC STAR121F 1 mg F
Goat anti Rabbit IgG (Fc):HRP STAR121P 1 mg E WB
Goat anti Rabbit IgG (H/L):HRP STAR124P 1 mg C E WB
Sheep anti Rabbit IgG:FITC STAR34B 1 mg C F
Sheep anti Rabbit IgG:RPE STAR35A 1 ml F
Sheep anti Rabbit IgG:DyLight®488 STAR36D488GA 0.1 mg F IF WB
Sheep anti Rabbit IgG:DyLight®549 STAR36D549GA 0.1 mg F IF
Sheep anti Rabbit IgG:DyLight®649 STAR36D649GA 0.1 mg F IF
Sheep anti Rabbit IgG:DyLight®680 STAR36D680GA 0.1 mg F IF WB
Sheep anti Rabbit IgG:Dylight®800 STAR36D800GA 0.1 mg F IF WB

Useful Reagents Available

Description Product Code Pack Size Applications List Price Quantity
Antigen Retrieval Buffer, pH8.0 BUF025A 500 ml P
Antigen Retrieval Buffer, pH8.0 BUF025C 50 ml P
TidyBlot™ Western Blot Detection Reagent:HRP STAR209P 0.5 ml WB*

Product Specific References

Further Reading

  1. Feske, S., et al. (2006) A mutation in Orai1 causes immune deficiency by abrogating CRAC channel function.
    Nature; 441:179-85
  2. Soboloff, J. et al. (2006) Calcium signals mediated by STIM and Orai proteins--a new paradigm in inter-organelle communication.
    Biochim Biophys Acta. 1763 (11): 1161-8.
  3. Lewis, R.S. (2001) Calcium signaling mechanisms in T lymphocytes.
    Annu Rev Immunol. 19: 497-521.