Transcription Initiation Factor IIB (TFIIB) is an essential factor for transcription by RNA Polymerase II. TFIIB localizes to the nucleus where it forms a complex (the DAB complex) with transcription factor IID and IIA. TFIIB plays a role as a bridge between IID, which initially recognizes the promoter sequence, and RNA polymerase II. TFIIB is involved in the selection of transcription start site.
パッケージサイズ | 在庫状況 | 単価(税別) |
---|---|---|
10 μg | 約5 days | ¥ 42,500 |
50 μg | 約5 days | ¥ 125,000 |
500 μg | 約5 days | ¥ 436,000 |
1 mg | 約5 days | ¥ 626,500 |
説明 | Transcription Initiation Factor IIB (TFIIB) is an essential factor for transcription by RNA Polymerase II. TFIIB localizes to the nucleus where it forms a complex (the DAB complex) with transcription factor IID and IIA. TFIIB plays a role as a bridge between IID, which initially recognizes the promoter sequence, and RNA polymerase II. TFIIB is involved in the selection of transcription start site. |
Species | Human |
Expression Host | E. coli |
Tag | N-GST |
Accession Number | Q00403 |
別名 | TFIIB, GTF2B, TF2B, S300-II, General Transcription Factor TFIIB, Transcription Initiation Factor IIB |
Amino Acid | Met1-Leu316 |
Construction | Met1-Leu316 |
Protein Purity | Greater than 81% as determined by reducing SDS-PAGE. (QC verified) |
分子量 | 62 KDa (reducing condition) |
Endotoxin | < 0.1 ng/µg (1 EU/µg) as determined by LAL test. |
Formulation | Lyophilized from a solution filtered through a 0.22 μm filter, containing 20 mM Tris-HCl, 100 mM NaCl, pH 8.0. |
Reconstitution | Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing. |
Stability & Storage |
Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
Shipping |
In general, Lyophilized powders are shipping with blue ice. Solutions are shipping with dry ice. |
Research Background | Transcription Initiation Factor IIB (TFIIB) is an essential factor for transcription by RNA Polymerase II. TFIIB localizes to the nucleus where it forms a complex (the DAB complex) with transcription factor IID and IIA. TFIIB plays a role as a bridge between IID, which initially recognizes the promoter sequence, and RNA polymerase II. TFIIB is involved in the selection of transcription start site. |
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Please read the User Guide of Recombinant Proteins for more specific information.
TFIIB Protein, Human, Recombinant (GST) TFIIB GTF2B TF2B S300-II General Transcription Factor TFIIB Transcription Initiation Factor IIB recombinant recombinant-proteins proteins protein