Integrator, a multiprotein mediator of small nuclear RNA processing, associates with the C-terminal repeat of RNA polymerase II

David Baillat, Mohamed Ali Hakimi, Anders M. Näär, Ali Shilatifard, Neil Cooch, Ramin Shiekhattar

Research output: Contribution to journalArticle

243 Citations (Scopus)

Abstract

The C-terminal domain (CTD) of RNA polymerase II (RNAPII) is an essential component of transcriptional regulation and RNA processing of protein-coding genes. A large body of data also implicates the CTD in the transcription and processing of RNAPII-mediated small nuclear RNAs (snRNAs). However, the identity of the complex (or complexes) that associates with the CTD and mediates the processing of snRNAs has remained elusive. Here, we describe an RNA polymerase II complex that contains at least 12 novel subunits, termed the Integrator, in addition to core RNAPII subunits. Two of the Integrator subunits display similarities to the subunits of the cleavage and polyadenylation specificity factor (CPSF) complex. We show that Integrator is recruited to the U1 and U2 snRNA genes and mediates the snRNAs' 3′ end processing. The Integrator complex is evolutionarily conserved in metazoans and directly interacts with the C-terminal domain of the RNA polymerase II largest subunit.

Original languageEnglish (US)
Pages (from-to)265-276
Number of pages12
JournalCell
Volume123
Issue number2
DOIs
StatePublished - Oct 21 2005
Externally publishedYes

Fingerprint

Small Nuclear RNA
Terminal Repeat Sequences
RNA Polymerase II
Processing
RNA 3' End Processing
Cleavage And Polyadenylation Specificity Factor
Genes
Transcription
RNA
Proteins

ASJC Scopus subject areas

  • Cell Biology
  • Molecular Biology

Cite this

Baillat, D., Hakimi, M. A., Näär, A. M., Shilatifard, A., Cooch, N., & Shiekhattar, R. (2005). Integrator, a multiprotein mediator of small nuclear RNA processing, associates with the C-terminal repeat of RNA polymerase II. Cell, 123(2), 265-276. https://doi.org/10.1016/j.cell.2005.08.019

Integrator, a multiprotein mediator of small nuclear RNA processing, associates with the C-terminal repeat of RNA polymerase II. / Baillat, David; Hakimi, Mohamed Ali; Näär, Anders M.; Shilatifard, Ali; Cooch, Neil; Shiekhattar, Ramin.

In: Cell, Vol. 123, No. 2, 21.10.2005, p. 265-276.

Research output: Contribution to journalArticle

Baillat, D, Hakimi, MA, Näär, AM, Shilatifard, A, Cooch, N & Shiekhattar, R 2005, 'Integrator, a multiprotein mediator of small nuclear RNA processing, associates with the C-terminal repeat of RNA polymerase II', Cell, vol. 123, no. 2, pp. 265-276. https://doi.org/10.1016/j.cell.2005.08.019
Baillat, David ; Hakimi, Mohamed Ali ; Näär, Anders M. ; Shilatifard, Ali ; Cooch, Neil ; Shiekhattar, Ramin. / Integrator, a multiprotein mediator of small nuclear RNA processing, associates with the C-terminal repeat of RNA polymerase II. In: Cell. 2005 ; Vol. 123, No. 2. pp. 265-276.
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