Recombinant Human TFIIB (N-GST)
Product Specifications
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.
Product Name Alternative
Transcription Initiation Factor IIB; General Transcription Factor TFIIB; S300-II; GTF2B; TF2B; TFIIB
Accession Number
Q00403
Host
E.coli
Endotoxin
<1 EU/µg as determined by LAL test.
Purity
Greater than 95% as determined by reducing SDS-PAGE
Form
Lyophilized
Reconstitution
Always centrifuge tubes before opening.Do not mix by vortex or pipetting.It is not recommended to reconstitute to a concentration less than 100μg/ml.Dissolve the lyophilized protein in distilled water.Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Molecular Weight
61.64 KDa
Shipping Conditions
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below.
Storage Conditions
Store at -70°C/-20°C, stable for 6 months after receipt.Store at ≤-70°C, stable for 3 months under sterile conditions after opening. Please minimize freeze-thaw cycles.
Formulation
Lyophilized from a 0.2 μm filtered solution of 20mM Tris-HCl, 100mM NaCl, pH 8.0.
Construct
Recombinant Human Transcription Initiation Factor IIB is produced by our E.coli expression system and the target gene encoding Met1-Leu316 is expressed with a GST tag at the N-terminus.
Species
Human
Available Sizes
Frequently Asked Questions
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