Cancer Research Technology
Log in Register
Menu
Search
Monoclonal Antibodies

Anti-RNA polII [CTD 4H8]

Invented by Dr Jesper Svejstrup from Francis Crick Institute
Invented at Cancer Research UK London Research Institute: Clare Hall Laboratories
  • Datasheet
  • Inventor Info
Print

Info

Image thumbnail for Anti-RNA polII [CTD 4H8]
Add an image
Monoclonal antibody 4H8. RNA polymerase II (RNAP II) contains 12 subunits. The C-terminal domain of the largest subunit of RNA polymerase II (RNAP II) contains a highly conserved heptapeptide repeat, YSPTSPS. Monoclonal antibody 4H8 was obtained using synthetic peptide and specifically recognises the C-terminal domain of RNAP II.
Add an image
Image thumbnail for Anti-RNA polII [CTD 4H8]
Catalogue Number 151247
Applications ChIP ELISA FACS IHC IF IP WB ChIP-seq
Antigen/Gene or Protein Targets RNA Polymerase II
Reactivity Human and Saccharomyces cerevisiae
Relevance RNAPII is an essential component of the RNAP II transcription elongation complex. Recruitment of RNA processing factors to the elongation complex is coordinated by the phosphorylation of Serine-2 and Serine-5 residues within the C-terminal repeat (YSPTSPS) domain of the largest subunit of RNAPII. Mutations that directly affect transcription by RNA polymerases rank among the most central mediators of malignant transformation. CTD4H8 can also be used in chromatin immunoprecipitation (ChIP) assays.
Host Mouse
Immunogen Peptide: 10 repeats of synthetic peptide YSPTSPS using chemically synthesized phospho-Ser5
Positive Control HeLa cell line.
Subclass IgG1
Myeloma Used Sp2/0-Ag14
Recommended Growing Conditions DMEM + 5% FCS
Strain Balb/c
Notes Please note that this antibody detects both unphosphorylated and phosphorylated forms of the protein.

When using this antibody in western blot and IP, it recognizes both the II0 and IIA form of RPB1 (ie the largest RNAPII subunit). These different forms of RPB1 (as seen in gels) have traditionally been loosely defined as ‘hyper-‘ and ‘hypo-phosphorylated’, respectively. Here, however, it is important to remember that RPB1 contains no less than 52 repeats of a heptapeptide (TSPTSPS) that can be phosphorylated at different positions (Tyr1, Ser2, Thr4, Ser5 and Ser7; this antibody was raised against a synthetic peptide with 10 of these repeats, mostly but probably not entirely, chemically phosphorylated at Ser5). So, when we say that it recognizes both forms (II0/hyper-phos and IIA/hypo-phos), it might really just mean that the antibody recognizes a few phosphorylated Ser5s among 52 otherwise mostly un-phosphorylated repeats. Alternatively, it might conceivably (though less likely) recognize UN-phosphorylated repeats as there might conceivably be a few of those even in the II0/hyper-phos RPB1 form.
Research Area Epigenetics & Nuclear Signalling

References

There are 20 reference entries for this reagent.

View All References

References: 20 entries

Williamson et al. 2017. Cell. 168(5):843-855.e13. PMID: 28215706.

WB

View  

UV Irradiation Induces a Non-coding RNA that Functionally Opposes the Protein Encoded by the Same Gene.

Europe PMC ID: 28215706

View  

Pang et al. 2014. Oncogene. 33(31):4039-49. PMID: 24141769.

ChIP

View  

Seo et al. 2014. Nucleic Acids Res. 42(2):1016-25. PMID: 24163101.

View  

Genome-wide reorganization of histone H2AX toward particular fragile sites on cell activation.

Europe PMC ID: 24163101

View  

A functional interaction of E7 with B-Myb-MuvB complex promotes acute cooperative transcriptional activation of both S- and M-phase genes. (129 c).

Europe PMC ID: 24141769

View  

Keren-Shaul et al. 2013. PLoS One. 8(1):e53506. PMID: 23326444.

View  

Pre-mRNA splicing is a determinant of nucleosome organization.

Europe PMC ID: 23326444

View  

Harrigan et al. 2011. J Cell Biol. 193(1):97-108. PMID: 21444690.

View  

Replication stress induces 53BP1-containing OPT domains in G1 cells.

Europe PMC ID: 21444690

View  

Li et al. 2006. Mol Biol Cell. 17(9):3848-59. PMID: 16807355.

View  

Sir2 represses endogenous polymerase II transcription units in the ribosomal DNA nontranscribed spacer.

Europe PMC ID: 16807355

View  

Yart et al. 2005. Mol Cell Biol. 25(12):5052-60. PMID: 15923622.

View  

The HRPT2 tumor suppressor gene product parafibromin associates with human PAF1 and RNA polymerase II.

Europe PMC ID: 15923622

View  

Engelhardt et al. 2005. J Virol. 79(9):5812-8. PMID: 15827195.

View  

Association of the influenza A virus RNA-dependent RNA polymerase with cellular RNA polymerase II.

Europe PMC ID: 15827195

View  

Kristjuhan et al. 2003. Proc Natl Acad Sci U S A. 100(13):7551-6. PMID: 12796514.

View  

Spreading of Sir3 protein in cells with severe histone H3 hypoacetylation.

Europe PMC ID: 12796514

View  

Kristjuhan et al. 2002. Mol Cell. 10(4):925-33. PMID: 12419235.

View  

Transcriptional inhibition of genes with severe histone h3 hypoacetylation in the coding region.

Europe PMC ID: 12419235

View  

Add a reference

References: 20 entries

Williamson et al. 2017. Cell. 168(5):843-855.e13. PMID: 28215706.

WB

View  

UV Irradiation Induces a Non-coding RNA that Functionally Opposes the Protein Encoded by the Same Gene.

View  

Pang et al. 2014. Oncogene. 33(31):4039-49. PMID: 24141769.

ChIP

View  

Seo et al. 2014. Nucleic Acids Res. 42(2):1016-25. PMID: 24163101.

View  

Genome-wide reorganization of histone H2AX toward particular fragile sites on cell activation.

View  

A functional interaction of E7 with B-Myb-MuvB complex promotes acute cooperative transcriptional activation of both S- and M-phase genes. (129 c).

View  

Keren-Shaul et al. 2013. PLoS One. 8(1):e53506. PMID: 23326444.

View  

Pre-mRNA splicing is a determinant of nucleosome organization.

View  

Harrigan et al. 2011. J Cell Biol. 193(1):97-108. PMID: 21444690.

View  

Replication stress induces 53BP1-containing OPT domains in G1 cells.

View  

Li et al. 2006. Mol Biol Cell. 17(9):3848-59. PMID: 16807355.

View  

Sir2 represses endogenous polymerase II transcription units in the ribosomal DNA nontranscribed spacer.

View  

Yart et al. 2005. Mol Cell Biol. 25(12):5052-60. PMID: 15923622.

View  

The HRPT2 tumor suppressor gene product parafibromin associates with human PAF1 and RNA polymerase II.

View  

Engelhardt et al. 2005. J Virol. 79(9):5812-8. PMID: 15827195.

View  

Association of the influenza A virus RNA-dependent RNA polymerase with cellular RNA polymerase II.

View  

Kristjuhan et al. 2003. Proc Natl Acad Sci U S A. 100(13):7551-6. PMID: 12796514.

View  

Spreading of Sir3 protein in cells with severe histone H3 hypoacetylation.

View  

Kristjuhan et al. 2002. Mol Cell. 10(4):925-33. PMID: 12419235.

View  

Transcriptional inhibition of genes with severe histone h3 hypoacetylation in the coding region.

View  

Add a reference

Inventor Information