Recombinant Human Transcription Initiation Factor Tfiid Subunit 9 (TAF9) Protein (His)

Name: Recombinant Human Transcription Initiation Factor Tfiid Subunit 9 (TAF9) Protein (His)
Brand: Beta LifeScience
SKU: BLC-06228P
Availability: InStock

Greater than 85% as determined by SDS-PAGE.

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Product Overview

Description	Recombinant Human Transcription Initiation Factor Tfiid Subunit 9 (TAF9) Protein (His) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 85% as determined by SDS-PAGE.
Activity	Not tested.
Uniprotkb	Q16594
Target Symbol	TAF9
Synonyms	RNA polymerase II TBP-associated factor subunit G;STAF31/32;Transcription initiation factor TFIID 31 kDa subunit;TAFII-31;TAFII31;Transcription initiation factor TFIID 32 kDa subunit;TAFII-32;TAFII32
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	N-6His
Target Protein Sequence	MESGKTASPKSMPKDAQMMAQILKDMGITEYEPRVINQMLEFAFRYVTTILDDAKIYSSHAKKATVDADDVRLAIQCRADQSFTSPPPRDFLLDIARQRNQTPLPLIKPYSGPRLPPDRYCLTAPNYRLKSLQKKASTSAGRITVPRLSVGSVTSRPSTPTLGTPTPQTMSVSTKVGTPMSLTGQRFTVQMPTSQSPAVKASIPATSAVQNVLINPSLIGSKNILITTNMMSSQNTANESSNALKRKREDDDDDDDDDDDYDNL
Expression Range	1-264aa
Protein Length	Full Length
Mol. Weight	34.9 kDa
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	Essential for cell viability. TAF9 and TAF9B are involved in transcriptional activation as well as repression of distinct but overlapping sets of genes. May have a role in gene regulation associated with apoptosis. TAFs are components of the transcription factor IID (TFIID) complex, the TBP-free TAFII complex (TFTC), the PCAF histone acetylase complex and the STAGA transcription coactivator-HAT complex. TFIID or TFTC are essential for the regulation of RNA polymerase II-mediated transcription.
Subcellular Location	Nucleus.
Protein Families	TAF9 family
Database References	HGNC: 11542 OMIM: 600822 KEGG: hsa:6880 STRING: 9606.ENSP00000217893 UniGene: PMID: 29257297 findings suggest that p53 sequesters TAF9 from GLI1, which may contribute to inhibition of GLI1 activity by p53 PMID: 26282181 TAF9 depletion severely disrupts TFIID, indicating that the observed ongoing transcription is initiated with at least partially TAF-free TATA-binding protein. PMID: 12837753 IL-1-inducible phosphorylation of p65 NFkB is mediated by multiple protein kinases including IKKalpha, IKKbeta, IKKepsilon, TBK1, and an unknown kinase and couples p65 to TAFII31-mediated IL-8 transcription PMID: 15489227 suggest a novel STAF65gamma-dependent function of STAGA-type complexes in cell proliferation and transcription activation by MYC postloading of TFIID and RNA polymerase II that involves direct recruitment of core Mediator PMID: 17967894 TAF9 functionally supports EKLF activity by enhancing its ability to activate the beta-globin gene. TAF9 interacts with a conserved beta-globin downstream promoter element PMID: 19251649 Multiple hTAF(II)31-binding motifs in the intrinsically unfolded transcriptional activation domain of VP16. PMID: 19643037

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.