2NVX image
Entry Detail
PDB ID:
2NVX
Title:
RNA polymerase II elongation complex in 5 mM Mg+2 with 2'-dUTP
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2006-11-13
Release Date:
2006-12-19
Method Details:
Experimental Method:
Resolution:
3.60 Å
R-Value Free:
0.30
R-Value Work:
0.28
R-Value Observed:
0.28
Space Group:
C 1 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:DNA-directed RNA polymerase II largest subunit
Chain IDs:D (auth: A)
Chain Length:1733
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:DNA-directed RNA polymerase II 140 kDa polypeptide
Chain IDs:E (auth: B)
Chain Length:1224
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:DNA-directed RNA polymerase II 45 kDa polypeptide
Chain IDs:F (auth: C)
Chain Length:318
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:DNA-directed RNA polymerases I, II, and III 27 kDa polypeptide
Chain IDs:G (auth: E)
Chain Length:215
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:DNA-directed RNA polymerases I, II, and III 23 kDa polypeptide
Chain IDs:H (auth: F)
Chain Length:155
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:DNA-directed RNA polymerases I, II, and III 14.5 kDa polypeptide
Chain IDs:I (auth: H)
Chain Length:146
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:DNA-directed RNA polymerase II subunit 9
Chain IDs:J (auth: I)
Chain Length:122
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:DNA-directed RNA polymerases I/II/III subunit 10
Chain IDs:K (auth: J)
Chain Length:70
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:DNA-directed RNA polymerase II 13.6 kDa polypeptide
Chain IDs:L (auth: K)
Chain Length:120
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:DNA-directed RNA polymerases I, II, and III 7.7 kDa polypeptide
Chain IDs:M (auth: L)
Chain Length:70
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Primary Citation
Structural basis of transcription: role of the trigger loop in substrate specificity and catalysis
Cell(Cambridge,Mass.) 127 941 954 (2006)
PMID: 17129781 DOI: 10.1016/j.cell.2006.11.023

Abstact

New structures of RNA polymerase II (pol II) transcribing complexes reveal a likely key to transcription. The trigger loop swings beneath a correct nucleoside triphosphate (NTP) in the nucleotide addition site, closing off the active center and forming an extensive network of interactions with the NTP base, sugar, phosphates, and additional pol II residues. A histidine side chain in the trigger loop, precisely positioned by these interactions, may literally "trigger" phosphodiester bond formation. Recognition and catalysis are thus coupled, ensuring the fidelity of transcription.

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Primary Citation of related structures