ORAI1 gene

ORAI calcium release-activated calcium modulator 1

The information on this page was automatically extracted from online scientific databases.

From NCBI Gene:

The protein encoded by this gene is a membrane calcium channel subunit that is activated by the calcium sensor STIM1 when calcium stores are depleted. This type of channel is the primary way for calcium influx into T-cells. Defects in this gene are a cause of immune dysfunction with T-cell inactivation due to calcium entry defect type 1 (IDTICED1). [provided by RefSeq, Sep 2011]

From UniProt:

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 (PubMed:16582901, PubMed:16645049, PubMed:16733527, PubMed:16766533, PubMed:16807233, PubMed:19249086, PubMed:23307288, PubMed:24351972, PubMed:24591628, PubMed:28219928, PubMed:20354224, PubMed:26956484). 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 (PubMed:16582901).

Covered on Genetics Home Reference:

From NCBI Gene:

  • Myopathy, tubular aggregate, 2
  • Combined immunodeficiency due to ORAI1 deficiency

From UniProt:

Myopathy, tubular aggregate, 2 (TAM2): A rare congenital myopathy characterized by regular arrays of membrane tubules on muscle biopsies without additional histopathological hallmarks. Tubular aggregates in muscle are structures of variable appearance consisting of an outer tubule containing either one or more microtubule-like structures or amorphous material. TAM2 patients have myopathy and pupillary abnormalities. [MIM:615883]

Immunodeficiency 9 (IMD9): An immune disorder characterized by recurrent infections, impaired activation and proliferative response of T-cells, decreased T-cell production of cytokines, and normal lymphocytes counts and serum immunoglobulin levels. In surviving patients ectodermal dysplasia with anhidrosis and non-progressive myopathy may be observed. [MIM:612782]

Cytogenetic Location: 12q24.31, which is the long (q) arm of chromosome 12 at position 24.31

Molecular Location: base pairs 121,626,550 to 121,642,040 on chromosome 12 (Homo sapiens Updated Annotation Release 109.20200522, GRCh38.p13) (NCBI)

Cytogenetic Location: 12q24.31, which is the long (q) arm of chromosome 12 at position 24.31
  • CRACM1
  • IMD9
  • ORAT1
  • TAM2
  • TMEM142A