Provided below are ELISA kits targeting spalt like transcription factor 4, a human protein encoded by SALL4. This protein is 1053 amino acids long, with a mass of 112.2 kDa, and is a member of the Sal C2H2-type zinc-finger protein family. 2 isoforms have been identified. This is reported to be a cytoplasmic and nuclear protein. There is a noted implication in Duane-radial ray syndrome. Other alias names for this protein include: sal-like protein 4, zinc finger protein 797, zinc finger protein SALL4, DRRS, and zinc finger protein 797.