Gene Information
Gene NameORAI1
OrganismHomo sapiens (Human)
Gene Length301
Protein NamesCalcium release-activated calcium channel protein 1 (Protein orai-1) (Transmembrane protein 142A)
Target Namecalcium-release activated calcium channel
Target TypeClinical trial target
Gene Age950 ( ENSG00000276045 )
Evolutionary StageEumetazoa
AlphaFoldDBQ96D31
Gene CardORAI1
Uniprot IDQ96D31
PfamPF07856
In ASDyes
Allosteric Predictionyes (0.800273682)
Ortholog in AnimalsAlpaca_ ORAI1 ( ortholog_one2one )
Dog_ ORAI1 ( ortholog_one2one )
GuineaPig_ ORAI1 ( ortholog_one2one )
Macaque_ ORAI1 ( ortholog_one2one )
Mouse_ Orai1 ( ortholog_one2one )
Pig_ ORAI1 ( ortholog_one2one )
Rat_ Orai1 ( ortholog_one2one )
Rabbit_ ORAI1 ( ortholog_one2one )
OhnologsNA
ParalogsORAI2, ORAI3
TissueNA
Tissue SpecificityExpressed in naive CD4 and CD8 T cells (at protein level) (PubMed:26956484). Expressed at similar levels in naive and effector T helper cells (PubMed:20354224). {ECO:0000269|PubMed:20354224, ECO:0000269|PubMed:26956484}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 2MAK  (NMR  4EHQ  (X-ray  1.90A 
DBSNP rs118203993  rs786204796  rs1555324111  rs3741596  rs587777528 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:16582901, ECO:0000269|PubMed:16645049, ECO:0000269|PubMed:19249086, ECO:0000269|PubMed:20887894, ECO:0000269|PubMed:22641696, ECO:0000269|PubMed:23307288, ECO:0000269|PubMed:24351972, ECO:0000269|PubMed:26956484, ECO:0000269|PubMed:27185316, ECO:0000269|PubMed:28058752, ECO:0000269|PubMed:28219928};
Multi-pass membrane protein {ECO:0000269|PubMed:16582901, ECO:0000269|PubMed:16645049, ECO:0000269|PubMed:19249086, ECO:0000269|PubMed:22641696, ECO:0000269|PubMed:24351972}. Basolateral cell membrane {ECO:0000250|UniProtKB:Q8BWG9};
Multi-pass membrane protein {ECO:0000269|PubMed:19249086}. Note=Isoform beta is more mobile in the plasma membrane (PubMed:23307288). Colocalizes with STIM1 at the cell membrane (PubMed:27185316). {ECO:0000269|PubMed:23307288, ECO:0000269|PubMed:27185316}.
Mouse PG classificationNA
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