Anti-Crm1 antibodies are protein reagents that detect specific antigens. The Crm1 antigen is another term for the human protein exportin 1, encoded by the XPO1 gene. The protein is known to mediate the nuclear export of cellular proteins (cargos) bearing a leucine-rich nuclear export signal (NES) and of RNAs. Canonically, it has an amino acid length of 1071 residues and a mass of 123.4 kilodaltons. Its subcellular localization is in the nucleus and cytoplasm and it is found to be expressed in the heart, brain, placenta, lung, liver, skeletal muscle, pancreas, spleen, thymus, prostate, testis, ovary, small intestine, colon and peripheral blood leukocytes. The Crm1 protein is a member of the Exportin protein family. Other alias names for Crm1 include emb.