Catalogue number: |
PA1963 |
Price: |
$200.00 |
Reactivities: |
Human, Mouse, Rat |
Applications: |
Immunocytochemistry, Immunohistochemistry, Immunohistochemistry - frozen, Western Blot |
Size: |
100ug/vial |
Gene: |
DDX4 |
Swiss prot: |
Q9NQI0 |
Form: |
Lyophilized |
Format: |
Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3. |
Storage temp: |
At -20 degree C for one year. After reconstitution, at 4 degree C for one month. It can also be aliquotted and stored frozen at -20 degree C for a longer time.Avoid repeated freezing and thawing. |
Scientific background: |
DDX4 (DEAD/H BOX 4), also known as VASA. The deduced 724-amino acid VASA protein contains the 8 conserved domains found in all known DEAD box proteins. The amino acid sequence in this core region shows greater similarity to VASA homologs in other species than to other human DEAD box proteins. By radiation hybrid analysis, Castrillon et al. (2000) mapped the VASA gene to 5q. By fluorescence in situ hybridization, they refined the localization to 5q11.2-q12. This region is syntenic to the distal end of mouse chromosome 13, where the mouse VASA homolog (Ddx4) resides (Abe and Noce, 1997). Using a combination of proteomics, cytology, and functional analysis in C. elegans, Chu et al. (2006) reduced 1,099 proteins copurified with spermatogenic chromatin to 132 proteins for functional analysis. |
References: |
1. Abe, K., Noce, T. A DEAD-family protein gene, Ddx4, encoding a murine homolog of Drosophila vasa maps to the distal end of mouse chromosome 13. Mammalian Genome 8: 622-623, 1997.
2. Castrillon, D. H., Quade, B. J., Wang, T. Y., Quigley, C., Crum, C. P. The human VASA gene is specifically expressed in the germ cell lineage. Proc. Nat. Acad. Sci. 97: 9585-9590, 2000.
3. Chu, D. S., Liu, H., Nix, P., Wu, T. F., Ralston, E. J., Yates, J. R., III, Meyer, B. J. Sperm chromatin proteomics identifies evolutionarily conserved fertility factors. Nature 443: 101-105, 2006.
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Additional info: |
A synthetic peptide corresponding to a sequence in the middle region of human DDX4, identical to the the related rat and mouse sequences. |