Anti-DDX21 Antibody Picoband®

Nucleolar RNA helicase 2 is an enzyme that in humans is encoded by the DDX21 gene. DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of this family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a DEAD box protein, which is an antigen recognized by autoimmune antibodies from a patient with watermelon stomach disease. This protein unwinds double-stranded RNA, folds single-stranded RNA, and may play important roles in ribosomal RNA biogenesis, RNA editing, RNA transport, and general transcription.

Important for the control of mitochondrial reactive oxygen species homeostasis, apoptosis regulation and cell viability. Possesses a dithiol-reducing activity.

1. Calo, E., Flynn, R. A., Martin, L., Spitale, R. C., Chang, H. Y., Wysocka, J. RNA helicase DDX21 coordinates transcription and ribosomal RNA processing. Nature 518: 249-253, 2015. 2. Calo, E., Gu, B., Bowen, M. E., Aryan F., Zalc, A., Liang, J., Flynn, R. A., Swigut, T., Chang, H. Y., Attardi, L. D., Wysocka, J. Tissue-selective effects of nucleolar stress and rDNA damage in developmental disorders. Nature 554: 112-117, 2018. 3. Valdez, B. C., Henning, D., Busch, R. K., Woods, K., Flores-Rozas, H., Hurwitz, J., Perlaky, L., Busch, H. A nucleolar RNA helicase recognized by autoimmune antibodies from a patient with watermelon stomach disease. Nucleic Acids Res. 24: 1220-1224, 1996.

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.