Protein orai-1 ; Transmembrane protein 142A ; Cracm1 ; Tmem142a
Categories
Elisa
Function
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.
Specificity
Natural and recombinant Rat Calcium release-activated calcium channel protein 1
Interacts with STIM1 and STIM2. Interacts with EFCAB4B/CRACR2A; the interaction is direct and takes place in absence of Ca(2+). Forms a complex with EFCAB4B/CRACR2A and STIM1 at low concentration of Ca(2+), the complex dissociates at elevated Ca(2+) concentrations.