Recombinant Human Protein Dr1 (DR1) Protein (GST)

Name: Recombinant Human Protein Dr1 (DR1) Protein (GST)
Brand: Beta LifeScience
SKU: BLC-09308P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Collections: All products, High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human Protein Dr1 (DR1) Protein (GST) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	Q01658
Target Symbol	DR1
Synonyms	Down regulator of transcription 1; Down regulator of transcription 1 TBP binding; Down-regulator of transcription 1; down-regulator of transcription 1; TBP-binding (negative cofactor 2); DR 1; Dr1; Dr1 protein; NC 2; NC2; NC2 beta; NC2-beta; NC2B_HUMAN; Negative co factor 2; Negative cofactor 2; Negative cofactor 2 beta; Negative cofactor 2-beta; Protein Dr1; TATA binding protein associated phosphoprotein; TATA box/binding protein associated phosphoprotein DR1; TATA-binding protein-associated phosphoprotein
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	N-GST
Target Protein Sequence	ASSSGNDDDLTIPRAAINKMIKETLPNVRVANDARELVVNCCTEFIHLISSEANEICNKSEKKTISPEHVIQALESLGFGSYISEVKEVLQECKTVALKRRKASSRLENLGIPEEELLRQQQELFAKARQQQAELAQQEWLQMQQAAQQAQLAAASASASNQAGSSQDEEDDDDI
Expression Range	1-176aa
Protein Length	Full Length
Mol. Weight	46.3kDa
Research Area	Epigenetics And Nuclear Signaling
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	The association of the DR1/DRAP1 heterodimer with TBP results in a functional repression of both activated and basal transcription of class II genes. This interaction precludes the formation of a transcription-competent complex by inhibiting the association of TFIIA and/or TFIIB with TBP. Can bind to DNA on its own. Component of the ATAC complex, a complex with histone acetyltransferase activity on histones H3 and H4.
Subcellular Location	Nucleus.
Protein Families	NC2 beta/DR1 family
Database References	HGNC: 3017 OMIM: 601482 KEGG: hsa:1810 STRING: 9606.ENSP00000359290 UniGene: PMID: 28181134 Knockdown of DR1 resulted in reductions of viral RNA and protein production, demonstrating that DR1 acts as a positive host factor in influenza A virus replication. PMID: 25589657 Basal core promoters control the equilibrium between negative cofactor 2 and preinitiation complexes in human cells. PMID: 20230619 The physiological functions of human Dr1 include regulation of polymerase III transcription. PMID: 19965767 NC2 controls TBP binding and maintenance on DNA that is largely independent of a canonical TATA sequence PMID: 15574413 the initiator core promoter element antagonizes repression of TATA-directed transcription by negative cofactor NC2 PMID: 17584739 Data show that NC2beta is specifically involved in neuroblastoma pathogenesis and may be considered a new neuroblastoma biomarker. PMID: 18538002 ATAC Is a GCN5/PCAF-containing acetylase complex with a novel NC2-like histone fold module that interacts with the TATA-binding protein PMID: 18838386 heterodimerization with NC2alpha masks the nuclear localization signal in NC2beta, which prevents nuclear export of the NC2 complex PMID: 19204005

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.