Anti-PYM1 antibodies are used in the immunodetection of the protein PYM homolog 1, exon junction complex associated factor. In humans, the canonical protein has a reported length of 204 amino acid residues and a mass of 22.7 kDa. Its subcellular localization is in the nucleus and cytoplasm. Up to 2 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. A member of the Pym protein family, PYM1 is a reported key regulator of the exon junction complex (EJC), a multiprotein complex that associates immediately upstream of the exon-exon junction on mRNAs and serves as a positional landmark for the intron exon structure of genes and directs post-transcriptional processes in the cytoplasm such as mRNA export, nonsense-mediated mRNA decay (NMD) or translation. Synonyms for this target antigen include protein wibg homolog, within bgcn homolog, and partner of Y14 and mago. A number of PYM1 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. In addition, Immunohistochemistry is also a common application.