orai-1 encodes a calcium release activated calcium (CRAC) channel orthologous to the vertebrate ORAI family of proteins; ORAI-1 activity is required for normal levels of fertility and for store-operated calcium channel (SOCC) activity in intestinal epithelial cells; co-expression of ORAI-1 and STIM-1 in HEK293 cells results in large inwardly rectifying cation currents activated by endoplasmic reticulum calcium depletion; ORAI-1 is expressed in the gonad and in the intestine; in the intestine, ORAI-1 appears to localize to the apical and basal plasma membrane; in the spermatheca, ORAI-1 expression is consistent with localization to the basal plasma membrane.
Enables store-operated calcium channel activity. Involved in ovulation and store-operated calcium entry. Located in apical plasma membrane and basolateral plasma membrane. Part of voltage-gated calcium channel complex. Expressed in gonadal sheath cell; head; and tail. Human ortholog(s) of this gene implicated in immunodeficiency 9 and tubular aggregate myopathy 2. Is an ortholog of human ORAI2 (ORAI calcium release-activated calcium modulator 2) and ORAI3 (ORAI calcium release-activated calcium modulator 3).
Map position created from combination of previous interpolated map position (based on known location of sequence) and allele information. Therefore this is not a genetic map position based on recombination frequencies or genetic experiments. This was done on advice of the CGC.