Anti-HAL Antibody Picoband®

Histidine ammonia-lyase is a cytosolic enzyme catalyzing the first reaction in histidine catabolism, the nonoxidative deamination of L-histidine to trans-urocanic acid. Histidine ammonia-lyase defects cause histidinemia which is characterized by increased histidine and histamine and decreased urocanic acid in body fluids. Several transcript variants encoding different isoforms have been found for this gene.

E.coli-derived human HAL recombinant protein (Position: D65-R632) . Human HALshares 95.2% and 95.4% amino acid (aa) sequence identity with mouse and rat HAL, respectively.

1. Kacser, H. K., Bulfield, G., Wallace, M. E. Histidinaemia mutant in the mouse. Nature 244: 77-79, 1973. 2. Kanarek, N., Keys, H. R., Cantor, J. R., Lewis, C. A., Chan, S. H., Kunchok, T., Abu-Remaileh, M., Freinkman, E., Schweitzer, L. D., Sabatini, D. M. Histidine catabolism is a major determinant of methotrexate sensitivity. Nature 559: 632-636, 2018. Note: Erratum: Nature 602: E17-E18, 2022. 3. Kawai, Y., Moriyama, A., Asai, K., Coleman-Campbell, C. M., Sumi, S., Morishita, H., Suchi, M. Molecular characterization of histidinemia: identification of four missense mutations in the histidase gene. Hum. Genet. 116: 340-346, 2005. Note: Erratum: Hum. Genet. 118: 531-532, 2005.

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.