Anti-magnesium transporter MRS2 antibodies are used for the immunodetection of the protein encoded by the MRS2 gene. In humans, the canonical protein has a reported length of 443 amino acid residues and a mass of 50.3 kDa. Its subcellular localization is in the mitochondria. Alternative splicing is reported to yield 4 different isoforms for this protein. A member of the CorA metal ion transporter (MIT) (TC 1.A.35) protein family, it is reported to be a magnesium transporter that mediates the influx of magnesium into the mitochondrial matrix. Other names for this target antigen include MRS2, magnesium transporter, MRS2-like protein, MRS2-like, magnesium homeostasis factor, putative magnesium transporter, and magnesium transporter MRS2 homolog, mitochondrial. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.