Recombinant Human Atp-Dependent Rna Helicase Ddx19B (DDX19B) Protein (His-SUMO)

Name: Recombinant Human Atp-Dependent Rna Helicase Ddx19B (DDX19B) Protein (His-SUMO)
Brand: Beta LifeScience
SKU: BLC-06511P
Availability: InStock

Greater than 85% as determined by SDS-PAGE.

Collections: High-quality recombinant proteins, Other recombinant proteins, Recombinant proteins fall special offers - full-length proteins

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Product Overview

Description	Recombinant Human Atp-Dependent Rna Helicase Ddx19B (DDX19B) Protein (His-SUMO) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 85% as determined by SDS-PAGE.
Uniprotkb	Q9UMR2
Target Symbol	DDX19B
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	N-6His-SUMO
Target Protein Sequence	ATDSWALAVDEQEAAAESLSNLHLKEEKIKPDTNGAVVKTNANAEKTDEEEKEDRAAQSLLNKLIRSNLVDNTNQVEVLQRDPNSPLYSVKSFEELRLKPQLLQGVYAMGFNRPSKIQENALPLMLAEPPQNLIAQSQSGTGKTAAFVLAMLSQVEPANKYPQCLCLSPTYELALQTGKVIEQMGKFYPELKLAYAVRGNKLERGQKISEQIVIGTPGTVLDWCSKLKFIDPKKIKVFVLDEADVMIATQGHQDQSIRIQRMLPRNCQMLLFSATFEDSVWKFAQKVVPDPNVIKLKREEETLDTIKQYYVLCSSRDEKFQALCNLYGAITIAQAMIFCHTRKTASWLAAELSKEGHQVALLSGEMMVEQRAAVIERFREGKEKVLVTTNVCARGIDVEQVSVVINFDLPVDKDGNPDNETYLHRIGRTGRFGKRGLAVNMVDSKHSMNILNRIQEHFNKKIERLDTDDLDEIEKIAN
Expression Range	2-479aa
Protein Length	Full Length of Mature Protein
Mol. Weight	66.7 kDa
Research Area	Others
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	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.
Subcellular Location	Cytoplasm. Nucleus, nucleoplasm.
Protein Families	DEAD box helicase family, DDX19/DBP5 subfamily
Database References	HGNC: 2742 OMIM: 605812 KEGG: hsa:11269 STRING: 9606.ENSP00000288071 UniGene: PMID: 29746542 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 Ddx19 is an RNA export factor required for nuclear import of the SRF coactivator MKL1 PMID: 25585691 Dbp5, Gle1-IP6 and Nup159: a working model for mRNP export. PMID: 22064466 identification and characterization of a gene coding a novel isoform PMID: 12219940 Using in vitro assays, the authors demonstrate that NUP214 decreases both the RNA binding and ATPase activities of DBP5. PMID: 19219046 Results describe the crystal structures of human DDX19, a DEXD/H-box protein, in its open and closed cleft conformations. PMID: 19244245

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.