Anti-GPALPP1 antibodies are used in the immunodetection of the protein GPALPP motifs containing 1. In humans, the canonical protein has a reported length of 340 amino acid residues and a mass of 38.1 kDa. Alternative splicing is reported to yield 4 different isoforms for this protein. Synonyms for this target antigen include lipopolysaccharide specific response-7 protein, lipopolysaccharide-specific response protein 7, and GPALPP motifs-containing protein 1.