DEAD box proteins, a family of putative RNA helicases, are characterized by eight conserved amino acid motifs that are arranged in a core region as found in the prototypical member of the family, eIF-4A. The family's name is derived from the amino acid sequence Asp-Glu-Ala-Asp (DEAD) that is located within the ATP hydrolysis motif. DEAD box proteins have been implicated in translation initiation and RNA splicing, degradation, and stability. The DEAD box protein, DDX1, was identified in retinoblastoma cell lines, where it is coamplified with MYCN, a member of the MYC transcription factor family. DDX1 is expressed at elevated levels in fetal tissues of neural origin (retina and brain). It is both cytoplasmic and nuclear in DDX1-amplified neuroblastoma and retinoblastoma cell lines. However, it localizes specifically to the nucleus in non-amplified cell lines. Thus, DDX1 is thought to be involved in nuclear RNA metabolism. In addition, the decrease in mean disease-free survival of neuroblastoma patients exhibiting coamplification of DDX1 and MYCN as compared to those exhibiting MYCN amplification indicates a possible role for DDX1 in cancer formation in neural tissues.
Applications:
Suitable for use in Western Blot. Other applications not tested.
Recommended Dilution:
Optimal dilutions to be determined by the researcher.
Storage and Stability:
May be stored at 4 degrees C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot Store at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.