Orai1 Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	FC, IF, IHC, WB
Recommend Dilution	WB: 1:200-1:2000; IHC: 1:100-1:3,000; FC: 1:50-1:600
Reactivity	Mouse, Rat
Host	Rabbit
Clonality	Polyclonal
Immunogen	Peptide (C)KFLPLKRQAGQPS, corresponding to amino acid residues 200-212 of mouse Orai1. 2nd extracellular loop.
Formulation	Lyophilized. Concentration before lyophilization ~0.8mg/ml (lot dependent, please refer to CoA along with shipment for actual concentration). Buffer before lyophilization: Phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.05% NaN3.
Reconstitution Method	Add 50 ul double distilled water (DDW) to the lyophilized powder.
Purification	Affinity purified on immobilized antigen.
Conjugation	Unconjugated
Storage Condition	Store at -20°C as received.
Gene Name	ORAI calcium release-activated calcium modulator 1
Database Link	NP_780632 Entrez Gene 304496 RatEntrez Gene 109305 Mouse UniProt ID Q8BWG9
Background	Cytosolic calcium (Ca2+) has long been known to act as a key second messenger in many intracellular pathways including synaptic transmission, muscle contraction, hormonal secretion, cell growth and proliferation. Intracellular Ca2+ levels are controlled by either the influx of Ca2+ through the calcium-release-activated Ca2+ channels (CRAC), or from intracellular stores which gained much attention. Recently, several key players of the store operated complex have been identified. Orai1 (also known as CRACM1) acts as the store operated Ca2+ channel (SOC) and STIM1, which acts as the endoplasmic reticulum Ca2+ sensor. The formation of functional channels requires the presence of both Orai1 and STIM1 proteins working as a complex and involves the co-clustering of Orai1 on the plasma membrane with STIM1 on the endoplasmic reticulum. TRPC1, a member of the transient receptor potential family was also suggested to act as a player in the SOC complex. In T-cells, Ca2+ entry following activation by antigen-receptor engagement occurs solely through CRAC channels where Orai1 constitutes the pore forming subunit. Orai1 is a plasma membrane protein with four potential transmembrane domains and intracellular N- and C-terminus. In addition, two mammalian homologs to Orai1 have been identified; Orai2 and Orai3. All three, Orai1 Orai2 and Orai3, are capable of forming store operated channels with different magnitudes.
Synonyms	CRACM1; FLJ14466; ORAT1; TMEM142A
Reference Data

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