These Histidase ELISA kits are immunodetection tools for measuring the levels of Histidase in biological samples. Histidase is an alias of the human HAL gene, which encodes the protein, histidine ammonia-lyase. The HAL protein is 657 amino acid residues in length and 72.7 kilodaltons in mass. However, as many as 3 protein isoforms have been identified. Other names for this target antigen include HIS and HSTD. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.