SRP2117
RNA Polymerase II, p14.5 subunit, GST tagged human
recombinant, expressed in E. coli, ≥85% (SDS-PAGE)
Sinónimos:
RPB9, hRPB14.5
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About This Item
origen biológico
human
recombinante
expressed in E. coli
Análisis
≥85% (SDS-PAGE)
formulario
frozen liquid
mol peso
~42.2 kDa
envase
pkg of 10 μg
condiciones de almacenamiento
avoid repeated freeze/thaw cycles
concentración
250 μg/mL
color
clear colorless
Nº de acceso NCBI
Nº de acceso UniProt
Condiciones de envío
dry ice
temp. de almacenamiento
−70°C
Información sobre el gen
human ... POLR2I(5438)
Acciones bioquímicas o fisiológicas
hRPB9 is a subunit unique to RNA polymerase II, although it has sequence homologues in RNA polymerases I and III. The gene for Rpb9 is not essential for yeast cell viability, but is essential in Drosophila. hRPB9 has roles in both transcription initiation and transcription elongation. In the initiation reaction it is necessary for accurate start site selection. In the elongation reaction, RPB9, along with TFIIS facilitates the conversion of an arrest-competent conformation to a read-through competent conformation. RNA polymerase II lacking the RPB9 subunit uses alternate transcription initiation sites in vitro and in vivo and is unable to respond to the transcription elongation factor TFIIS in vitro. A role in the modulation of initiation and elongation is consistent with the localization of RPB9 in the three-dimensional structure of yeast RNA polymerase II. RPB9 is located at the tip of the so-called "jaws" of the enzyme, which is thought to function by clamping the DNA downstream of the active site. RPB9 comprises two zinc ribbon domains joined by a conserved linker region. The C-terminal zinc ribbon is similar in sequence to that found in TFIIS.
Forma física
Clear and colorless frozen liquid solution
Nota de preparación
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. While working, please keep sample on ice.
Código de clase de almacenamiento
10 - Combustible liquids
Clase de riesgo para el agua (WGK)
WGK 1
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
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Molecular and cellular biology, 12(3), 928-935 (1992-03-01)
A small, divergently transcribed gene is located 500 bp upstream of the suppressor of Hairy-wing locus of Drosophila melanogaster. Sequencing of a full-length cDNA clone of the predominant 850-nucleotide transcript reveals that this gene encodes a 15,100-Da protein with high
Molecular and cellular biology, 13(1), 114-122 (1993-01-01)
We have previously isolated mutants of Saccharomyces cerevisiae that are primarily defective in transcription of 35S rRNA genes by RNA polymerase I and have identified genes (RRN1 to RRN9) involved in this process. We have now cloned the RRN4 gene
The Journal of biological chemistry, 266(28), 19053-19055 (1991-10-05)
The Saccharomyces cerevisiae RNA polymerase II subunit gene RPB9 was isolated and sequenced. RPB9 is a single copy gene on chromosome VII. The RPB9 sequence predicts a protein of 122 amino acids with a molecular mass of 14,200 Da. The
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