Protein Domain : IPR004836

Type:  Family Name:  Sodium/calcium exchanger protein
Description:  Na+/Ca2+exchange proteins are involved in maintaining Ca2+homeostasis in a wide variety of cell types. They are found in both the plasma membraneand intracellular organellar membranes, where they exchange Na+for Ca2+in an electrogenic manner. When located in the plasma membrane, they generallyutilise the transmembrane (TM) Na+concentration gradient in order to extrude Ca2+from cells. Three mammalian isoforms have been cloned to date (NCX1-3), which consist of 920-970 amino acid residues that are predictedto possess 11 or 12 TM domains. Interestingly, they possess a short motif (~30 residues) that is similar to the Na+/K+-ATPase, although its function is unknown [, ].NCX1 has been found to be predominantly expressed in the heart, where it plays an important role in excitation-contraction coupling, but it is alsoabundant in a variety of other tissues []. NCX2 and NCX3 transcripts havebeen detected in the brain and skeletal muscle [, ]. Homologous Na+/Ca2+exchange proteins have also been found in Caenorhabditis elegans, Drosophila melanogasterand Loligo opalescens(California market squid). Short Name:  Na_Ca_Ex

1 Child Features

DB identifier Type Name
IPR002987 Family Sodium/calcium exchanger, isoform 1

2 Contains

DB identifier Type Name
IPR004837 Domain Sodium/calcium exchanger membrane region
IPR003644 Domain Na-Ca exchanger/integrin-beta4

2 Cross Referencess

Identifier
PR01259
TIGR00845

0 Found In

3 GO Annotations

GO Term Gene Name
GO:0005432 IPR004836
GO:0006816 IPR004836
GO:0016020 IPR004836

3 Ontology Annotations

GO Term Gene Name
GO:0005432 IPR004836
GO:0006816 IPR004836
GO:0016020 IPR004836

0 Parent Features

0 Proteins

3 Publications

First Author Title Year Journal Volume Pages PubMed ID
            8798769
            1700476
            8021246