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SAB4200638

Sigma-Aldrich

Monoclonal Anti−phospho−RNA polymerase II CTD (pSer5) antibody produced in rat

clone 1H4B6, purified from hybridoma cell culture

Synonyme(s) :

CCFDN, CTD (carboxy−terminal domain, RNA polymerase II, polypeptide A) phosphatase, CTD of POLR2A, FCP1, POLR2, POLRA, RNA polymerase II subunit A C-terminal domain phosphatase, RPB1, RPBh1, RPO2, RPOL2, RpIILS, TFIIF-associating CTD phosphatase 1, hRPB221, hsRPB1, phosphatase of, subunit 1, polymerase (RNA) II (DNA directed) polypeptide A 220kDa (POLR2A), serine phosphatase FCP1a, subunit 1CTDP1, transcription factor IIF-associating CTD phosphatase 1

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About This Item

Code UNSPSC :
12352203
Nomenclature NACRES :
NA.41

Source biologique

rat

Niveau de qualité

Forme d'anticorps

purified from hybridoma cell culture

Type de produit anticorps

primary antibodies

Clone

1H4B6, monoclonal

Poids mol.

~250 kDa

Espèces réactives

human, rat, mouse, monkey, canine

Concentration

~1 mg/mL

Technique(s)

immunoblotting: 0.5-1 μg/mL using whole extracts of HeLa cells.
immunofluorescence: 4-8 μg/mL using using HeLa cells.

Isotype

IgG2b

Numéro d'accès UniProt

Conditions d'expédition

dry ice

Température de stockage

−20°C

Modification post-traductionnelle de la cible

phosphorylation (pSer5)

Informations sur le gène

human ... POLR2A(5430)
mouse ... Polr2a(20020)
rat ... Polr2a(363633)

Description générale

Monoclonal Anti-phospho-RNA polymerase II CTD (pSer5) (rat IgG2b isotype) is derived from the hybridoma 1H4B6 produced by the fusion of mouse myeloma cells and lymph node cells from rat immunized with Synthetic peptide.. The C-terminal domain (CTD) RNAPII also known as POLR2A is the largest subunit of RNA polymerase II. It comprises the heptapeptide repeats with serine and threonine residues in the C-terminal. POLR2A gene is mapped to human chromosome 17p13.1.

Spécificité

Monoclonal Anti-phospho-RNA polymerase II CTD (pSer5) recognizes specifically phosphor-Ser5 RNAPII but not phospho-Ser2 or phospho-Ser7.

Immunogène

Synthetic peptide corresponding to pSer5 of human RNA Polymerase II CTD repeat.

Application

Monoclonal Anti−phospho−RNA polymerase II CTD (pSer5) antibody produced in rat may be used in immunoblotting and immunofluorescence.

Actions biochimiques/physiologiques

The C-terminal domain (CTD) of the RNA polymerase II is essential for polymerase activity and gene regulation.. The CTD functions to help couple transcription and processing of the nascent RNA and also plays roles in transcription elongation and termination. In addition, this subunit, in combination with several other polymerase subunits, forms the DNA binding domain of the polymerase, a groove in which the DNA template is transcribed into RNA. CTD is being dynamically modified during transcription cycle and the Ser 5 phosphorylation in promoter region is more prominent than the 3′ region. The phosphorylation at Ser5 and Ser7 is mediated by the cyclin dependent kinase 7 of the transcription factor II human (TFIIH). The recruitment of the capping machinery is the main function of phosphor-Ser5. However, other protein interactions require the phosphor-Ser5 as well. Mutation in the domain regions of POLR2A is implicated in developmental delay and in neurodevelopmental syndrome.

Forme physique

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.

Stockage et stabilité

For extended storage, freeze at -20 °C in working aliquots. Repeated freezing and thawing or storage in “frost-free” freezers is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilution samples should be discarded if not used within 12 hours.

Clause de non-responsabilité

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Consulter la Bibliothèque de documents

Martin Heidemann et al.
Biochimica et biophysica acta, 1829(1), 55-62 (2012-09-18)
The eukaryotic RNA polymerase II (RNAPII) catalyzes the transcription of all protein encoding genes and is also responsible for the generation of small regulatory RNAs. RNAPII has evolved a unique domain composed of heptapeptide repeats with the consensus sequence Tyr1-Ser2-Pro3-Thr4-Ser5-Pro6-Ser7
HDP101, a novel B-cell maturation antigen (BCMA)-targeted antibody conjugated to alpha-Amanitin, is active against myeloma with preferential efficacy against pre-clinical models of deletion 17p
Singh RK, et al.
Blood, 132, 593-593 (2018)
Dynamic phosphorylation patterns of RNA polymerase II CTD during transcription
Heidemann M, et al.
Biochimica et Biophysica Acta - Gene Regulatory Mechanisms, 1829(1), 55-62 (2013)
Jun Odawara et al.
BMC genomics, 12, 516-516 (2011-10-21)
Cellular function is regulated by the balance of stringently regulated amounts of mRNA. Previous reports revealed that RNA polymerase II (RNAPII), which transcribes mRNA, can be classified into the pausing state and the active transcription state according to the phosphorylation
Jing-Ping Hsin et al.
Genes & development, 26(19), 2119-2137 (2012-10-03)
The C-terminal domain (CTD) of the RNA polymerase II largest subunit consists of multiple heptad repeats (consensus Tyr1-Ser2-Pro3-Thr4-Ser5-Pro6-Ser7), varying in number from 26 in yeast to 52 in vertebrates. The CTD functions to help couple transcription and processing of the

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