TFIIB Protein, Human, Recombinant (GST)

Name: TFIIB Protein, Human, Recombinant (GST)
Brand: TargetMol
SKU: TMPJ-01067
Rating: 4.5 (1 reviews)

(Synonyms: Transcription Initiation Factor IIB, TFIIB, TF2B, S300-II, GTF2B, General Transcription Factor TFIIB) Copy Product Info

Synonyms: Transcription Initiation Factor IIB, TFIIB, TF2B, S300-II, GTF2B, General Transcription Factor TFIIB

Catalog No. TMPJ-01067 Copy Product Info

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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Pack Size	Price	USA Stock	Global Stock
5 µg	$112	7-10 days	7-10 days
10 µg	$183	7-10 days	7-10 days
20 µg	$292	7-10 days	7-10 days
50 µg	$545	7-10 days	7-10 days
100 µg	$792	7-10 days	7-10 days
200 µg	$1,150	7-10 days	7-10 days
500 µg	$1,900	7-10 days	7-10 days
1 mg	$2,730	7-10 days	7-10 days

For In stock only · Estimated delivery: USA Stock (1-2 days) Global Stock (5-7 days)

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For research use only—not for human use. No sales to individuals. Use as intended only.

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User Guide of Recombinant Proteins

Product Introduction

Bioactivity

Bioactivity	Activity has not been tested. It is theoretically active, but we cannot guarantee it. If you require protein activity, we recommend choosing the eukaryotic expression version first.
Description	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 System	E. coli
Tag	N-GST
Accession Number	Q00403
Amino Acid	Met1-Leu316
Construction	Met1-Leu316
Protein Purity	Greater than 81% as determined by reducing SDS-PAGE. (QC verified)
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.
Synonyms	Transcription Initiation Factor IIB, TFIIB, TF2B, S300-II, GTF2B, General Transcription Factor TFIIB
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.

Chemical Properties

Molecular Weight

62 KDa (reducing condition)

Storage & Solubility Information

Shipping	In general, lyophilized powders are shipped with blue ice, while solutions are shipped with dry ice.
Storage	Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, 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.