Recombinant Human ATP-dependent RNA helicase DDX19B(DDX19B) (Active)

Code CSB-EP892352HU
Size US$2466Purchase it in Cusabio online store
(only available for customers from the US)
  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Purity Greater than 85% as determined by SDS-PAGE.
Activity Measured by its binding ability in a functional ELISA. Immobilized LCN2 at 2 μg/ml can bind human DDX19B, the EC50 of human DDX19B protein is 17.71-23.15 μg/ml.
Target Names DDX19B
Uniprot No. Q9UMR2
Research Area Signal Transduction
Alternative Names ATP-dependent RNA helicase DDX19B; DBP5; Dbp5; yeast; homolog of; DD19B_HUMAN; DDX19; DDX19B; DEAD (Asp-Glu-Ala-Asp) box polypeptide 19B; DEAD box protein 19B; DEAD box RNA helicase DEAD5; DEAD-box protein 5; DEAD/H (Asp-Glu-Ala-Asp/His) box polypeptide 19 (Dbp5; yeast; homolog); DEAD/H BOX 19; helicase DEAD5; RNAh; TDBP; yeast Dbp5 homolog
Species Homo sapiens (Human)
Source E.coli
Expression Region 2-479aa
Mol. Weight 80.8 kDa
Protein Length Full Length of Mature Protein
Tag Info N-terminal GST-tagged
Form Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
and FAQs
Protein FAQs
Storage Condition Store at -20°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA Please contact us to get it.

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Target Background

(From Uniprot)
ATP-dependent RNA helicase involved in mRNA export from the nucleus. Rather than unwinding RNA duplexes, DDX19B functions as a remodeler of ribonucleoprotein particles, whereby proteins bound to nuclear mRNA are dissociated and replaced by cytoplasmic mRNA binding proteins.
Gene References into Functions
  1. These results imply that DBP5, GLE1 and IP6 have a conserved and individual function in the cytoplasmic mRNA expression. Variations in phenotype are due to the difference in each function of DBP5, GLE1 and IPPK in intracellular mRNA metabolism. PMID: 29746542
  2. DDX19 interacts with pre-termination complexes (preTCs) in a nucleotide-dependent manner. Furthermore, DDX19 increases the efficiency of termination complex (TC) formation and the peptide release in the presence of eukaryotic release factors. DDX19 also stabilizes ribosome complexes with translation elongation factors eEF1 and eEF2. PMID: 28180304
  3. Ddx19 is an RNA export factor required for nuclear import of the SRF coactivator MKL1 PMID: 25585691
  4. Dbp5, Gle1-IP6 and Nup159: a working model for mRNP export. PMID: 22064466
  5. identification and characterization of a gene coding a novel isoform PMID: 12219940
  6. Using in vitro assays, the authors demonstrate that NUP214 decreases both the RNA binding and ATPase activities of DBP5. PMID: 19219046
  7. Results describe the crystal structures of human DDX19, a DEXD/H-box protein, in its open and closed cleft conformations. PMID: 19244245

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Subcellular Location Cytoplasm, Nucleus, nuclear pore complex, Nucleus membrane, Peripheral membrane protein, Cytoplasmic side
Protein Families DEAD box helicase family, DDX19/DBP5 subfamily
Database Links

HGNC: 2742

OMIM: 605812

KEGG: hsa:11269

STRING: 9606.ENSP00000288071

UniGene: Hs.221761


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