RPO26

Summary

Gene Symbol: RPO26
Description: DNA-directed RNA polymerase core subunit RPO26
Alias: RPB6, DNA-directed RNA polymerase core subunit RPO26
Species: Saccharomyces cerevisiae S288c
Products:     RPO26

Top Publications

  1. Van Mullem V, Landrieux E, Vandenhaute J, Thuriaux P. Rpa12p, a conserved RNA polymerase I subunit with two functional domains. Mol Microbiol. 2002;43:1105-13 pubmed
    ..Thus, the N-terminal zinc domain of Rpa12p determines its anchoring to RNA polymerase I and is the only critical part of that subunit in vivo. ..
  2. Kruk J, Dutta A, Fu J, Gilmour D, Reese J. The multifunctional Ccr4-Not complex directly promotes transcription elongation. Genes Dev. 2011;25:581-93 pubmed publisher
    ..Our comprehensive analysis shows that Ccr4-Not directly regulates transcription, and suggests it does so by promoting the resumption of elongation of arrested RNAPII when it encounters transcriptional blocks in vivo. ..
  3. Ferri M, Peyroche G, Siaut M, Lefebvre O, Carles C, Conesa C, et al. A novel subunit of yeast RNA polymerase III interacts with the TFIIB-related domain of TFIIIB70. Mol Cell Biol. 2000;20:488-95 pubmed
    ..The data indicate that C17 is a novel specific subunit of Pol III which participates together with C34 in the recruitment of Pol III by the preinitiation complex. ..
  4. Czeko E, Seizl M, Augsberger C, Mielke T, Cramer P. Iwr1 directs RNA polymerase II nuclear import. Mol Cell. 2011;42:261-6 pubmed publisher
    ..Iwr1 function is Pol II specific, transcription independent, and apparently conserved from yeast to human. ..
  5. Sayre M, Tschochner H, Kornberg R. Reconstitution of transcription with five purified initiation factors and RNA polymerase II from Saccharomyces cerevisiae. J Biol Chem. 1992;267:23376-82 pubmed
    ..TFIIA failed to substitute for any purified factor or to stimulate transcription with the complete set of factors, indicating that its function in crude extracts is primarily as an anti-inhibitor. ..
  6. Cramer P, Bushnell D, Fu J, Gnatt A, Maier Davis B, Thompson N, et al. Architecture of RNA polymerase II and implications for the transcription mechanism. Science. 2000;288:640-9 pubmed
    ..A clamp on the DNA nearer the active center, formed by Rpb1, Rpb2, and Rpb6, may be locked in the closed position by RNA, accounting for the great stability of transcribing complexes...
  7. Lehmann E, Brueckner F, Cramer P. Molecular basis of RNA-dependent RNA polymerase II activity. Nature. 2007;450:445-9 pubmed
    ..The RdRP activity of Pol II provides a missing link in molecular evolution, because it suggests that Pol II evolved from an ancient replicase that duplicated RNA genomes. ..
  8. Takagi Y, Calero G, Komori H, Brown J, Ehrensberger A, Hudmon A, et al. Head module control of mediator interactions. Mol Cell. 2006;23:355-64 pubmed
    ..The head module evidently controls Mediator-RNA polymerase II and Mediator-promoter interactions. ..
  9. Suh M, Meyer P, Gu M, Ye P, Zhang M, Kaplan C, et al. A dual interface determines the recognition of RNA polymerase II by RNA capping enzyme. J Biol Chem. 2010;285:34027-38 pubmed publisher
    ..Our results indicate that the dual interface based on combining PCI1 and PCI2 is required for directing CE to Pol II elongation complexes. ..

More Information

Publications52

  1. Suh M, Ye P, Zhang M, Hausmann S, Shuman S, Gnatt A, et al. Fcp1 directly recognizes the C-terminal domain (CTD) and interacts with a site on RNA polymerase II distinct from the CTD. Proc Natl Acad Sci U S A. 2005;102:17314-9 pubmed
    ..We speculate that Fcp1 interaction with the non-CTD site may mediate its stimulatory effect on transcription elongation reported previously. ..
  2. McCann T, Guo Y, McDonald W, Tansey W. Antagonistic roles for the ubiquitin ligase Asr1 and the ubiquitin-specific protease Ubp3 in subtelomeric gene silencing. Proc Natl Acad Sci U S A. 2016;113:1309-14 pubmed publisher
    ..We suggest that control of pol II by nonproteolytic ubiquitylation provides a mechanism to enforce silencing by transient and reversible inhibition of pol II activity at subtelomeric chromatin. ..
  3. Vasiljeva L, Buratowski S. Nrd1 interacts with the nuclear exosome for 3' processing of RNA polymerase II transcripts. Mol Cell. 2006;21:239-48 pubmed
    ..Since Nrd1 is known to bind RNA polymerase II and be important for sn/snoRNA 3' end processing, Nrd1 may link transcription and RNA 3' end formation with surveillance by the exosome. ..
  4. Duan R, Rhie B, Ryu H, Ahn S. The RNA polymerase II Rpb4/7 subcomplex regulates cellular lifespan through an mRNA decay process. Biochem Biophys Res Commun. 2013;: pubmed publisher
  5. Minakhin L, Bhagat S, Brunning A, Campbell E, Darst S, Ebright R, et al. Bacterial RNA polymerase subunit omega and eukaryotic RNA polymerase subunit RPB6 are sequence, structural, and functional homologs and promote RNA polymerase assembly. Proc Natl Acad Sci U S A. 2001;98:892-7 pubmed publisher
    ..The role of omega has been unclear. We show that omega is homologous in sequence and structure to RPB6, an essential subunit shared in eukaryotic RNAP I, II, and III...
  6. Daulny A, Geng F, Muratani M, Geisinger J, Salghetti S, Tansey W. Modulation of RNA polymerase II subunit composition by ubiquitylation. Proc Natl Acad Sci U S A. 2008;105:19649-54 pubmed publisher
    ..Our data demonstrate that ubiquitylation can directly alter the subunit composition of a core component of the transcriptional machinery and provide a paradigm for how ubiquitin can influence gene activity. ..
  7. Archambault J, Drebot M, Stone J, Friesen J. Isolation and phenotypic analysis of conditional-lethal, linker-insertion mutations in the gene encoding the largest subunit of RNA polymerase II in Saccharomyces cerevisiae. Mol Gen Genet. 1992;232:408-14 pubmed
    ..The functional relationship between RPO21 and RPO26, the gene encoding the 17...
  8. Kettenberger H, Armache K, Cramer P. Complete RNA polymerase II elongation complex structure and its interactions with NTP and TFIIS. Mol Cell. 2004;16:955-65 pubmed
    ..Binding of the elongation factor TFIIS realigns RNA in the active center, possibly converting the elongation complex to an alternative state less prone to stalling. ..
  9. Fernández Tornero C, Moreno Morcillo M, Rashid U, Taylor N, Ruiz F, Gruene T, et al. Crystal structure of the 14-subunit RNA polymerase I. Nature. 2013;502:644-9 pubmed publisher
    ..2 in RNA cleavage and Pol I insensitivity to ?-amanitin. The A49-A34.5 heterodimer embraces subunit A135 through extended arms, thereby contacting and potentially regulating subunit A12.2. ..
  10. Nouraini S, Xu D, Nelson S, Lee M, Friesen J. Genetic evidence for selective degradation of RNA polymerase subunits by the 20S proteasome in Saccharomyces cerevisiae. Nucleic Acids Res. 1997;25:3570-9 pubmed
    scs32 was isolated as an extragenic suppressor of a temperature-sensitive (ts) mutation (rpo26-31) in the gene encoding Rpo26p, a subunit common to yeast nuclear RNA polymerases (RNAPs)...
  11. Goler Baron V, Selitrennik M, Barkai O, Haimovich G, Lotan R, Choder M. Transcription in the nucleus and mRNA decay in the cytoplasm are coupled processes. Genes Dev. 2008;22:2022-7 pubmed publisher
    ..Hence, by recruiting Rpb4/7, Pol II governs not only transcription but also mRNA decay. ..
  12. Kuhn C, Geiger S, Baumli S, Gartmann M, Gerber J, Jennebach S, et al. Functional architecture of RNA polymerase I. Cell. 2007;131:1260-72 pubmed
    ..In contrast to Pol II, Pol I has a strong intrinsic 3'-RNA cleavage activity, which requires the C-terminal domain of subunit A12.2 and, apparently, enables ribosomal RNA proofreading and 3'-end trimming. ..
  13. Babbarwal V, Fu J, Reese J. The Rpb4/7 module of RNA polymerase II is required for carbon catabolite repressor protein 4-negative on TATA (Ccr4-not) complex to promote elongation. J Biol Chem. 2014;289:33125-30 pubmed publisher
    ..The interplay between Ccr4-Not and Rpb4/7 described here suggests a mechanism for how the cell coordinates mRNA synthesis and decay. ..
  14. Jensen T, Boulay J, Olesen J, Colin J, Weyler M, Libri D. Modulation of transcription affects mRNP quality. Mol Cell. 2004;16:235-44 pubmed
    ..Our results suggest that efficient mRNP assembly is under a kinetic control that is influenced by the rate of transcription. ..
  15. Nouraini S, Archambault J, Friesen J. Rpo26p, a subunit common to yeast RNA polymerases, is essential for the assembly of RNA polymerases I and II and for the stability of the largest subunits of these enzymes. Mol Cell Biol. 1996;16:5985-96 pubmed
    ..The function of Rpo26p was addressed by biochemical analysis of the ts rpo26-31 allele...
  16. Duan R, Rhie B, Ryu H, Ahn S. The RNA polymerase II Rpb4/7 subcomplex regulates cellular lifespan through an mRNA decay process. Biochem Biophys Res Commun. 2013;441:266-70 pubmed
  17. Briand J, Navarro F, Rematier P, Boschiero C, Labarre S, Werner M, et al. Partners of Rpb8p, a small subunit shared by yeast RNA polymerases I, II and III. Mol Cell Biol. 2001;21:6056-65 pubmed
    ..Rpb6p is phosphorylated at its N-terminal Ser2, but an alanyl replacement at this position still complements an rpb6-Delta null allele. A two-hybrid interaction also occurs between Rpb8p and the product of orphan gene YGR089w...
  18. Archambault J, Schappert K, Friesen J. A suppressor of an RNA polymerase II mutation of Saccharomyces cerevisiae encodes a subunit common to RNA polymerases I, II, and III. Mol Cell Biol. 1990;10:6123-31 pubmed
    ..We found that increased expression of wild-type RPO26, a single-copy, essential gene encoding a 155-amino-acid subunit common to RNAPI, RNAPII, and RNAPIII, suppressed ..
  19. Qiu Z, Schwer B, Shuman S. Two Routes to Genetic Suppression of RNA Trimethylguanosine Cap Deficiency via C-Terminal Truncation of U1 snRNP Subunit Snp1 or Overexpression of RNA Polymerase Subunit Rpo26. G3 (Bethesda). 2015;5:1361-70 pubmed publisher
    ..We thereby recovered RPO26 (encoding a shared subunit of all three nuclear RNA polymerases) and RPO31 (encoding the largest subunit of RNA ..
  20. Lee Y, Min S, Gim B, Kim Y. A transcriptional mediator protein that is required for activation of many RNA polymerase II promoters and is conserved from yeast to humans. Mol Cell Biol. 1997;17:4622-32 pubmed
    ..A database search revealed the existence of MED6-related genes in humans and Caenorhabditis elegans, suggesting that the role of mediator in transcriptional activation is conserved throughout the evolution. ..
  21. Gomar Alba M, del Olmo M. Hot1 factor recruits co-activator Sub1 and elongation complex Spt4/5 to osmostress genes. Biochem J. 2016;473:3065-79 pubmed publisher
    ..Instead, other data presented herein indicate a key function of the Hot1 transcription factor in the recruitment of these proteins to the promoter or the 5'-coding region of the genes under its control. ..
  22. Myer V, Young R. RNA polymerase II holoenzymes and subcomplexes. J Biol Chem. 1998;273:27757-60 pubmed
  23. Luo J, Fishburn J, Hahn S, Ranish J. An integrated chemical cross-linking and mass spectrometry approach to study protein complex architecture and function. Mol Cell Proteomics. 2012;11:M111.008318 pubmed publisher
    ..As such, it is an attractive approach to study the topology of protein complexes. ..
  24. Chung W, Craighead J, Chang W, Ezeokonkwo C, Bareket Samish A, Kornberg R, et al. RNA polymerase II/TFIIF structure and conserved organization of the initiation complex. Mol Cell. 2003;12:1003-13 pubmed
    ..The structure of the RNAPII/TFIIF complex suggests a model for the organization of a minimal transcription initiation complex. ..
  25. Garrido Godino A, García López M, García Martínez J, Pelechano V, Medina D, Pérez Ortín J, et al. Rpb1 foot mutations demonstrate a major role of Rpb4 in mRNA stability during stress situations in yeast. Biochim Biophys Acta. 2016;1859:731-43 pubmed publisher
    ..foot region of RNA polymerase II affect the assembly of the complex by altering the correct association of both the Rpb6 and the Rpb4/7 dimer...
  26. Porrúa O, Libri D. A bacterial-like mechanism for transcription termination by the Sen1p helicase in budding yeast. Nat Struct Mol Biol. 2013;20:884-91 pubmed publisher
    ..We also show that termination is inhibited by RNA-DNA hybrids. Our results elucidate the role of Sen1p in controlling pervasive transcription. ..
  27. Vannini A, Ringel R, Kusser A, Berninghausen O, Kassavetis G, Cramer P. Molecular basis of RNA polymerase III transcription repression by Maf1. Cell. 2010;143:59-70 pubmed publisher
    ..These results explain how Maf1 specifically represses transcription initiation from Pol III promoters and indicate that Maf1 also prevents reinitiation by binding Pol III during transcription elongation. ..
  28. Sung P, Guzder S, Prakash L, Prakash S. Reconstitution of TFIIH and requirement of its DNA helicase subunits, Rad3 and Rad25, in the incision step of nucleotide excision repair. J Biol Chem. 1996;271:10821-6 pubmed
    ..These studies reveal the differential requirement of Rad3 DNA helicase and CTD kinase activities in damage-specific incision versus RNA polymerase II transcription. ..
  29. Garrido Godino A, García López M, Navarro F. Correct assembly of RNA polymerase II depends on the foot domain and is required for multiple steps of transcription in Saccharomyces cerevisiae. Mol Cell Biol. 2013;33:3611-26 pubmed publisher
    ..pol II is crucial for the assembly and stability of the complex, by ensuring the correct association of Rpb1 with Rpb6 and of the dimer Rpb4-Rpb7 (Rpb4/7)...
  30. Mosley A, Pattenden S, Carey M, Venkatesh S, Gilmore J, Florens L, et al. Rtr1 is a CTD phosphatase that regulates RNA polymerase II during the transition from serine 5 to serine 2 phosphorylation. Mol Cell. 2009;34:168-78 pubmed publisher
    ..Functional characterization of Rtr1 reveals its role as a CTD phosphatase essential for the S5-to-S2-P transition. ..
  31. Nouraini S, Hu J, McBroom L, Friesen J. Mutations in an Abf1p binding site in the promoter of yeast RPO26 shift the transcription start sites and reduce the level of RPO26 mRNA. Yeast. 1996;12:1339-50 pubmed
    ..site for the transcription factor Abf1p was identified as an important promoter element of the gene that encodes Rpo26, a subunit common to all three yeast nuclear RNA polymerases (RNAP)...
  32. Keener J, Josaitis C, Dodd J, Nomura M. Reconstitution of yeast RNA polymerase I transcription in vitro from purified components. TATA-binding protein is not required for basal transcription. J Biol Chem. 1998;273:33795-802 pubmed
    ..The role of TBP in pol I transcription is fundamentally different from its role in pol II or pol III transcription. ..
  33. Christie K, Awrey D, Edwards A, Kane C. Purified yeast RNA polymerase II reads through intrinsic blocks to elongation in response to the yeast TFIIS analogue, P37. J Biol Chem. 1994;269:936-43 pubmed
  34. Suh H, Hazelbaker D, Soares L, Buratowski S. The C-terminal domain of Rpb1 functions on other RNA polymerase II subunits. Mol Cell. 2013;51:850-8 pubmed publisher
    ..To address this question, CTD was transferred to other RNApII subunits. Fusions to Rpb4 or Rpb6, two RNApII subunits located near the original position of CTD, support viability in a strain carrying a truncated ..
  35. Tan Q, Prysak M, Woychik N. Loss of the Rpb4/Rpb7 subcomplex in a mutant form of the Rpb6 subunit shared by RNA polymerases I, II, and III. Mol Cell Biol. 2003;23:3329-38 pubmed
    We have identified a conditional mutation in the shared Rpb6 subunit, assembled in RNA polymerases I, II, and III, that illuminated a new role that is independent of its assembly function...
  36. Huet J, Riva M, Sentenac A, Fromageot P. Yeast RNA polymerase C and its subunits. Specific antibodies as structural and functional probes. J Biol Chem. 1985;260:15304-10 pubmed
    ..These results are discussed in terms of the participation of these polypeptides to the active enzyme molecule, and of their possible role in DNA binding or transcription factor recognition. ..
  37. Leblanc B, Benham C, Clark D. An initiation element in the yeast CUP1 promoter is recognized by RNA polymerase II in the absence of TATA box-binding protein if the DNA is negatively supercoiled. Proc Natl Acad Sci U S A. 2000;97:10745-50 pubmed
    ..The role of transcription factors might be to mark the promoter and to regulate specific melting of promoter DNA. ..
  38. Xu Y, Bernecky C, Lee C, Maier K, Schwalb B, Tegunov D, et al. Architecture of the RNA polymerase II-Paf1C-TFIIS transcription elongation complex. Nat Commun. 2017;8:15741 pubmed publisher
    ..We further show that Paf1C is globally required for normal mRNA transcription in yeast. These results provide a three-dimensional framework for further analysis of Paf1C function in transcription through chromatin. ..
  39. Woychik N, Liao S, Kolodziej P, Young R. Subunits shared by eukaryotic nuclear RNA polymerases. Genes Dev. 1990;4:313-23 pubmed
    ..The Saccharomyces cerevisiae genes that encode these subunits (RPB5, RPB6, and RPB8) were isolated and sequenced, and their transcriptional start sites were deduced...
  40. Harel Sharvit L, Eldad N, Haimovich G, Barkai O, Duek L, Choder M. RNA polymerase II subunits link transcription and mRNA decay to translation. Cell. 2010;143:552-63 pubmed publisher
    ..We propose that Rpb4/7, through its interactions at each step in the mRNA lifecycle, represents a class of factors, "mRNA coordinators," which integrate the various stages of gene expression into a system. ..
  41. Harris B, Bose T, Lee K, Wang F, Lu S, Ross R, et al. Cohesion promotes nucleolar structure and function. Mol Biol Cell. 2014;25:337-46 pubmed publisher
    ..Our results strongly suggest that organization of the rDNA provided by cohesion is critical for formation and function of the nucleolus. ..
  42. Kolodziej P, Woychik N, Liao S, Young R. RNA polymerase II subunit composition, stoichiometry, and phosphorylation. Mol Cell Biol. 1990;10:1915-20 pubmed
    ..Immunoprecipitation from 32P-labeled cell extracts revealed that three of the subunits, RPB1, RPB2, and RPB6, are phosphorylated in vivo...
  43. Donaldson I, Friesen J. Zinc stoichiometry of yeast RNA polymerase II and characterization of mutations in the zinc-binding domain of the largest subunit. J Biol Chem. 2000;275:13780-8 pubmed
    ..Core activity of the mutant enzyme was reduced 20-fold. We conclude that mutations in the zinc-binding domain can reduce core activity without altering the association of any of the subunits required for this activity. ..