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TFIIB Protein, Human, Recombinant (GST)

Catalog No. TMPJ-01067

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.

TFIIB Protein, Human, Recombinant (GST)

TFIIB Protein, Human, Recombinant (GST)

Catalog No. TMPJ-01067
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.
Pack SizePriceAvailabilityQuantity
10 μg$1847-10 days
50 μg$5457-10 days
500 μg$1,9007-10 days
1 mg$2,7307-10 days
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Product Information

Biological Activity
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
TagN-GST
Accession NumberQ00403
Synonyms
Transcription Initiation Factor IIB,TFIIB,TF2B,S300-II,GTF2B,General Transcription Factor TFIIB
Amino Acid
Met1-Leu316
Construction
Met1-Leu316
Protein Purity
Greater than 81% as determined by reducing SDS-PAGE. (QC verified)
Molecular Weight62 KDa (reducing condition)
Endotoxin< 0.1 ng/µg (1 EU/µg) as determined by LAL test.
FormulationLyophilized 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°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.
ShippingIn 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.