Anti-ASS1 Antibody Picoband® (monoclonal, 5I5)

Argininosuccinate synthetase is an enzyme that in humans is encoded by the ASS1 gene. It is mapped to 9q34.11. The protein encoded by this gene catalyzes the penultimate step of the arginine biosynthetic pathway. There are approximately 10 to 14 copies of this gene including the pseudogenes scattered across the human genome, among which the one located on chromosome 9 appears to be the only functional gene for argininosuccinate synthetase. Mutations in the chromosome 9 copy of this gene cause citrullinemia. Two transcript variants encoding the same protein have been found for this gene.

ATP dependent phosphorylation of adenosine and other related nucleoside analogs to monophosphate derivatives. Serves as a potential regulator of concentrations of extracellular adenosine and intracellular adenine nucleotides.

1. Engel, K., Hohne, W., Haberle, J. Mutations and polymorphisms in the human argininosuccinate synthetase (ASS1) gene. Hum. Mutat. 30: 300-307, 2009. 2. Rabinovich, S., Adler, L., Yizhak, K., Sarver, A., Silberman, A., Agron, S., Stettner, N., Sun, Q., Brandis, A., Helbling, D., Korman, S., Itzkovitz, S., Dimmock, D., Ulitsky, I., Nagamani, S. C. S., Ruppin, E., Erez, A. Diversion of aspartate in ASS1-deficient tumours fosters de novo pyrimidine synthesis. Nature 527: 379-383, 2015. 3. Sase, M., Kobayashi, K., Imamura, Y., Saheki, T., Nakano, K., Miura, S., Mori, M. Level of translatable messenger RNA coding for argininosuccinate synthetase in the liver of the patients with quantitative-type citrullinemia. Hum. Genet. 69: 130-134, 1985.

Store 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 freeze-thaw cycles.