Anti-MRPL40 antibodies are used in the immunodetection of the protein mitochondrial ribosomal protein L40. In humans, the canonical protein has a reported length of 206 amino acid residues and a mass of 24.5 kDa. Its subcellular localization is in the mitochondria. It is ubiquitously expressed across many tissue types. A member of the Mitochondrion-specific ribosomal protein mL40 protein family, it is known to be involved with the morphogenesis of anatomical structure and mitochondrial translation. Synonyms for this target antigen include mitochondrial large ribosomal subunit protein mL40, nuclear localization signal-containing protein deleted in velocardiofacial syndrome, up-regulated in metastasis, and 39S ribosomal protein L40, mitochondrial.