Anti-LYL1 antibodies are used in the immunodetection of the protein LYL1 basic helix-loop-helix family member. In humans, the canonical protein has a reported length of 280 amino acid residues and a mass of 29.9 kDa. Its subcellular localization is in the nucleus. LYL1 is known to be involved with B cell differentiation and the regulation of transcription. Synonyms for this target antigen include protein lyl-1, class A basic helix-loop-helix protein 18, lymphoblastic leukemia associated hematopoiesis regulator 1, lymphoblastic leukemia derived sequence 1, and bHLHa18. LYL1 gene orthologs have been reported in the mouse, rat, bovine, frog and chimpanzee species. Some LYL1 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, Immunohistochemistry is also a common application.