SRP2120
RNA Polymerase II Peptide
≥70% (SDS-PAGE), human recombinant, expressed in E. coli, GST tagged
Sinónimos:
POLRA, RPB1, RPO2, RPOL2, hRPB220
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About This Item
Código UNSPSC:
12352202
NACRES:
NA.26
Productos recomendados
Nombre del producto
RNA Polymerase II, C-terminal domain, GST tagged human, recombinant, expressed in E. coli, ≥70% (SDS-PAGE)
origen biológico
human
recombinante
expressed in E. coli
Ensayo
≥70% (SDS-PAGE)
Formulario
frozen liquid
mol peso
~68.1 kDa
envase
pkg of 10 μg
condiciones de almacenamiento
avoid repeated freeze/thaw cycles
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 ... POLR2A(5430)
Categorías relacionadas
Acciones bioquímicas o fisiológicas
The CTD works as a binding scaffold for nuclear factors through its phosphorylation. It is suggested to be also involved in chromatin structure modification, DNA damage/repair, protein degradation and synthesis, RNA degradation, snRNA (small nuclear RNA) modification, and snoRNP (small nucleolar ribonucleoprotein) biogenesis.
The carboxy-terminal repeat domain (CTD) of the largest subunit of RNA pol II contains tandem repeats of a heptapeptide sequence Tyr-Ser-Pro-Thr-Ser-Pro-Ser which is highly conserved among eukaryotic organisms. There are two forms of RNA pol II in vivo: IIO, which is extensively phosphorylated at the CTD, and IIA, which is not phosphorylated. The IIA form preferentially enters the pre-initiation complex (PIC), whereas IIO is found in the elongation complex. The kinase activity of TFIIH can mediate CTD phosphorylation, although other kinases, including Cdc2, Ctk1, the Srb10-Srb11 kinase-cyclin pair, and P-TEFb, have also been implicated in CTD phosphorylation. A phosphatase responsible for the dephosphorylation of the CTD has also been identified. CTD phosphatase activity is regulated by TFIIB and TFIIF. The CTD has also been implicated in pre-mRNA processing, most likely functioning as a platform for the recruitment and assembly of factors involved in pre-mRNA processing.
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
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Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.
RNA polymerase II C-terminal domain required for enhancer-driven transcription.
Gerber HP, et al.
Nature, 374, 660-662 (1995)
Phosphorylation and functions of the RNA polymerase II CTD.
Phatnani HP and Greenleaf AL
Genes & Development, 20, 2922-2936 (2006)
T O'Brien et al.
Nature, 370(6484), 75-77 (1994-07-07)
The carboxy-terminal domain (CTD) of the large subunit of RNA polymerase II is essential in vivo, and is found in either an unphosphorylated (IIa) or hyperphosphorylated (IIo) form. The Drosophila uninduced hsp70 and hsp26 genes, and the constitutively expressed beta-1
H Lu et al.
Proceedings of the National Academy of Sciences of the United States of America, 88(22), 10004-10008 (1991-11-15)
The two forms of RNA polymerase II that exist in vivo, phosphorylated (IIO) and nonphosphorylated (IIA), were purified to apparent homogeneity from HeLa cells. The nonphosphorylated form preferentially binds to the preinitiation complex. RNA polymerase II in the complex was
The role of multisite phosphorylation in the regulation of RNA polymerase II activity.
M E Dahmus
Progress in nucleic acid research and molecular biology, 48, 143-179 (1994-01-01)
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