Anti-family with sequence similarity 19 (chemokine (C-C motif)-like), member A1 antibodies are used in antigen-specific immunodetection in biological samples. The target family with sequence similarity 19 (chemokine (C-C motif)-like), member A1 is a known alias name of the protein TAFA chemokine like family member 1, encoded by the TAFA1 gene in humans. This 133-amino acid residue protein is reported to be a regulatory factor, which is ligand for CMKLR2 and is involved in the modulation of neural stem-cell proliferation and differentiation. The protein is secreted and features post-translational modifications. In terms of tissue expression, it is reported to have brain-specific expression. Other synonyms for family with sequence similarity 19 (chemokine (C-C motif)-like), member A1 include chemokine-like protein TAFA-1 and family with sequence similarity 19 (chemokine (C-C motif)-like), member A1.