Anti-IGFBPL1 antibodies are used in the immunodetection of the protein insulin like growth factor binding protein like 1. In humans, the canonical protein has a reported length of 278 amino acid residues and a mass of 29 kDa. It has been described to be a secreted protein. It is noted to be expressed at the highest level in both brain and testis, with lower levels in the prostate, bladder and lung. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include insulin-like growth factor binding protein related protein 4, insulin-like growth factor-binding-related protein 4, and IGFBP-related protein 10. IGFBPL1 gene orthologs have been reported in the mouse, rat, bovine, frog and chimpanzee species. Some IGFBPL1 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, ELISA is also a common application.