SRP2013
RNA Polymerase II Peptide
≥85% (SDS-PAGE), recombinant, expressed in E. coli
Sinonimo/i:
POLRA, RPB1, RPO2, RPOL2, hRPB220
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About This Item
Codice UNSPSC:
12352202
NACRES:
NA.26
Prodotti consigliati
Nome del prodotto
RNA Polymerase II, C-terminal human, recombinant, expressed in E. coli, ≥85% (SDS-PAGE)
Origine biologica
human
Ricombinante
expressed in E. coli
Saggio
≥85% (SDS-PAGE)
Stato
frozen liquid
PM
~42.2 kDa
Confezionamento
pkg of 10 μg
Condizioni di stoccaggio
avoid repeated freeze/thaw cycles
Concentrazione
400 μg/mL
Colore
clear colorless
N° accesso NCBI
N° accesso UniProt
Condizioni di spedizione
dry ice
Temperatura di conservazione
−70°C
Informazioni sul gene
human ... POLR2A(5430)
Categorie correlate
Descrizione generale
RNA polymerase II (eukaryotic) contains around 10 subunits with a combined molecular weight of 500,000Da. The subunit structure of this enzyme is conserved amongst eukaryotes, and this subunits structure shares similarities with that of RNA pol I and III. 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.
Azioni biochim/fisiol
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, designated 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 elongating 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.
Stato fisico
Clear and colorless frozen liquid solution
Nota sulla preparazione
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. While working, please keep sample on ice.
Codice della classe di stoccaggio
10 - Combustible liquids
Classe di pericolosità dell'acqua (WGK)
WGK 1
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
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I documenti relativi ai prodotti acquistati recentemente sono disponibili nell’Archivio dei documenti.
Evolution of the RNA polymerase II C-terminal domain.
Stiller JW and Hall BD
Proceedings of the National Academy of Sciences of the USA, 99(9), 6091-6096 (2002)
4 Carboxy-terminal Domain of the Largest Subunit of Eukaryotic RNA Polymerase II.
Corden JL and Ingles CJ
Cold Spring Harbor molecular case studies, 81-107 (1992)
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
RNA polymerase II carboxy-terminal domain kinases: emerging clues to their function.
Prelich G
Eukaryotic Cell, 1(2), 153-162 (2002)
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