Aliases for MAGT1 Gene
External Ids for MAGT1 Gene
Previous GeneCards Identifiers for MAGT1 Gene
This gene encodes a ubiquitously expressed magnesium cation transporter protein that localizes to the cell membrane. This protein also associates with N-oligosaccharyl transferase and therefore may have a role in N-glycosylation. Mutations in this gene cause a form of X-linked intellectual disability (XLID). This gene may have multiple in-frame translation initiation sites, one of which would encode a shorter protein with an N-terminus containing a signal peptide at amino acids 1-29. [provided by RefSeq, Jul 2017]
GeneCards Summary for MAGT1 Gene
MAGT1 (Magnesium Transporter 1) is a Protein Coding gene. Diseases associated with MAGT1 include Immunodeficiency, X-Linked, With Magnesium Defect, Epstein-Barr Virus Infection, And Neoplasia and Congenital Disorder Of Glycosylation, Type In. Among its related pathways are Transport of glucose and other sugars, bile salts and organic acids, metal ions and amine compounds and Metabolism of proteins. Gene Ontology (GO) annotations related to this gene include magnesium ion transmembrane transporter activity. An important paralog of this gene is TUSC3.
UniProtKB/Swiss-Prot for MAGT1 Gene
Acts as accessory component of the N-oligosaccharyl transferase (OST) complex which catalyzes the transfer of a high mannose oligosaccharide from a lipid-linked oligosaccharide donor to an asparagine residue within an Asn-X-Ser/Thr consensus motif in nascent polypeptide chains. Involved in N-glycosylation of STT3B-dependent substrates. Specifically required for the glycosylation of a subset of acceptor sites that are near cysteine residues; in this function seems to act redundantly with TUSC3. In its oxidized form proposed to form transient mixed disulfides with a glycoprotein substrate to facilitate access of STT3B to the unmodified acceptor site. Has also oxidoreductase-independent functions in the STT3B-containing OST complex possibly involving substrate recognition.
May be involved in Mg(2+) transport in epithelial cells.