Recombinant Human Transcription initiation factor TFIID subunit 9 (TAF9), Homo sapiens (Human), E.coli, N-terminal 6xHis-tagged, 34.9kDa, purity >85% as determined by SDS-PAGE.

Recombinant Human Transcription initiation factor TFIID subunit 9 (TAF9)

Recombinant Human Transcription initiation factor TFIID subunit 9 (TAF9) — The TFIID basal transcription factor complex plays a major role in the initiation of RNA polymerase II (Pol II)-dependent transcription. Purity >85%.

SKU: BCRECP-001733 Category:
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Product Specifications

Product SkuBCRECP-001733
Product DescriptionRecombinant Human Transcription initiation factor TFIID subunit 9 (TAF9) Protein is expressed from E.coli with N-terminal 6xHis-tagged. It contains 1-264aa. [Accession | Q16594].
Uniprot No.Q16594
Gene NamesTAF9
PurityGreater than 85% as determined by SDS-PAGE.
Expression SystemE.coli
Expression Region1-264aa
SpeciesHomo sapiens (Human)
Tag InfoN-terminal 6xHis-tagged
Molecular weight34.9kDa
ActivityPlease contact us to obtain bioactivity data.
BufferIf the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose.
StorageStore at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Research AreasEpigenetics and Nuclear Signaling

Function

The TFIID basal transcription factor complex plays a major role in the initiation of RNA polymerase II (Pol II)-dependent transcription. TFIID recognizes and binds promoters with or without a TATA box via its subunit TBP, a TATA-box-binding protein, and promotes assembly of the pre-initiation complex (PIC). The TFIID complex consists of TBP and TBP-associated factors (TAFs), including TAF1, TAF2, TAF3, TAF4, TAF5, TAF6, TAF7, TAF8, TAF9, TAF10, TAF11, TAF12 and TAF13.

Biological Context

Subcellular Location: Nucleus

Product Specifications

Recombinant Human Transcription initiation factor TFIID subunit 9 (TAF9) is a recombinant protein from Homo sapiens (Human), expressed in E.coli, covering amino acids 1-264aa, with N-terminal 6xHis-tagged tag, molecular weight 34.9kDa, purity Greater than 85% as determined by SDS-PAGE.. Suitable for ELISA and Western Blot applications.

SDS-PAGE: Single band at expected molecular weight confirming purity.

ELISA: Suitable as coating antigen or detection standard.

Western Blot: Compatible with standard Western Blot protocols.

Protein Interaction: Validated for SPR (Surface Plasmon Resonance) and BLI (Bio-Layer Interferometry) studies.

Shipping: Shipped at ambient temperature. Lyophilized protein is stable during transit.

Storage: Store lyophilized protein at -20°C to -80°C. Reconstituted protein should be aliquoted and stored at -80°C. Avoid repeated freeze-thaw cycles.

Shelf Life: 12 months from date of receipt when stored as recommended.

Shipping Time: Orders placed before 2 PM EST ship same day. International orders typically deliver within 5-10 business days.

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Protein Biology

Function

The TFIID basal transcription factor complex plays a major role in the initiation of RNA polymerase II (Pol II)-dependent transcription (PubMed:33795473). TFIID recognizes and binds promoters with or without a TATA box via its subunit TBP, a TATA-box-binding protein, and promotes assembly of the pre-initiation complex (PIC) (PubMed:33795473). The TFIID complex consists of TBP and TBP-associated factors (TAFs), including TAF1, TAF2, TAF3, TAF4, TAF5, TAF6, TAF7, TAF8, TAF9, TAF10, TAF11, TAF12 and TAF13 (PubMed:33795473). TAF9 is also a component of the TBP-free TAFII complex (TFTC), the PCAF histone acetylase complex and the STAGA transcription coactivator-HAT complex (PubMed:15899866). TAF9 and its paralog TAF9B are involved in transcriptional activation as well as repression of distinct but overlapping sets of genes (PubMed:15899866). Essential for cell viability (PubMed:15899866). May have a role in gene regulation associated with apoptosis (PubMed:15899866)

Subcellular Location

Nucleus

Subunit

Component of the TFIID basal transcription factor complex, composed of TATA-box-binding protein TBP, and a number of TBP-associated factors (TAFs), including TAF1, TAF2, TAF3, TAF4, TAF5, TAF6, TAF7, TAF8, TAF9, TAF10, TAF11, TAF12 and TAF13 (PubMed:33795473). Component of the TATA-binding protein-free TAF complex (TFTC), the PCAF histone acetylase complex and the STAGA transcription coactivator-HAT complex (PubMed:11564863, PubMed:9885574). The PCAF complex consists at least of TADA2L/ADA2, SUPT3H/SPT3, TADA3L/ADA3, TAF5L/PAF65-beta, TAF6L/PAF65-alpha, TAF10/TAFII30, TAF12/TAFII20, TAF9/TAFII31 and TRRAP (PubMed:9674425, PubMed:9885574). The STAGA transcription coactivator-HAT complex consists at least of SUPT3H, GCN5L2, SUPT7L, TAF5L, TAF6L, TADA3L, TAD1L, TAF10, TAF12, TRRAP and TAF9 (PubMed:11564863). Binds N-terminal domain of p53/TP53 which is essential for transcription (PubMed:7761466). Component of some MLL1/MLL complex, at least composed of the core components KMT2A/MLL1, ASH2L, HCFC1/HCF1, WDR5 and RBBP5, as well as the facultative components BACC1, CHD8, E2F6, HSP70, INO80C, KANSL1, LAS1L, MAX, MCRS1, MGA, MYST1/MOF, PELP1, PHF20, PRP31, RING2, RUVB1/TIP49A, RUVB2/TIP49B, SENP3, TAF1, TAF4, TAF6, TAF7, TAF9 and TEX10 (PubMed:15960975). Binds TFIIB and the Herpes simplex virus activator VP16 (PubMed:7761466). Forms a heterodimer with TAF6 in a complex with the TAF4B-TAF12 heterodimer (PubMed:15601843, PubMed:7597030). Also interacts with TAF5 (PubMed:15899866). Binds directly DNA (PubMed:15601843). Increased DNA binding when complexed with TAF6 (PubMed:15601843)

Gene: TAF9  |  Organism: Homo sapiens  |  Synonyms: RNA polymerase II TBP-associated factor subunit G; STAF31/32; Transcription initiation factor TFIID 31 kDa subunit; Transcription initiation factor TFIID 32 kDa subunit
Key Publications

Frequently Asked Questions

How do I order or inquire about this product?

Fill out the Online Inquiry form with your required quantity and specifications. You can also email sales@biocrestsci.com. Our team typically responds within 4 business hours with a quote and availability confirmation.

What is the shipping and delivery time?

Orders placed before 2 PM EST ship the same day. Domestic (US) delivery typically takes 2-3 business days. International orders deliver within 5-10 business days. All products are shipped at ambient temperature with appropriate packaging to ensure stability.

How should I store this recombinant protein?

Lyophilized proteins should be stored at -20°C to -80°C upon receipt. After reconstitution, aliquot and store at -80°C. Avoid repeated freeze-thaw cycles. Shelf life is 12 months from date of receipt when stored as recommended.

What quality controls are performed on your products?

Each product undergoes SDS-PAGE purity analysis (typically >85-95%), endotoxin testing, and bioactivity validation. Products are validated for ELISA, Western Blot, and SPR/BLI applications as specified on this product page. A Certificate of Analysis (CoA) is available upon request.

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