Anti-N-alpha-acetyltransferase 38, NatC auxiliary subunit antibodies are used for the immunodetection of the protein encoded by the NAA38 gene. In humans, the canonical protein has a reported length of 125 amino acid residues and a mass of 13.5 kDa. Its subcellular localization is in the nucleus and cytoplasm. Alternative splicing is reported to yield 2 different isoforms for this protein. A member of the SnRNP Sm proteins protein family, it is reported to be an auxillary component of the N-terminal acetyltransferase C (NatC) complex which catalyzes acetylation of N-terminal methionine residues. Other names for this target antigen include LSM domain-containing protein 1, phosphonoformate immuno-associated protein 2, and LSM domain containing 1. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish and chimpanzee species.