PMID- 12000971
OWN - NLM
STAT- MEDLINE
DCOM- 20020712
LR  - 20131121
IS  - 0028-0836 (Print)
IS  - 0028-0836 (Linking)
VI  - 417
IP  - 6890
DP  - 2002 Jun 13
TI  - Crystal structure of a bacterial RNA polymerase holoenzyme at 2.6 A resolution.
PG  - 712-9
AB  - In bacteria, the binding of a single protein, the initiation factor sigma, to a
      multi-subunit RNA polymerase core enzyme results in the formation of a
      holoenzyme, the active form of RNA polymerase essential for transcription
      initiation. Here we report the crystal structure of a bacterial RNA polymerase
      holoenzyme from Thermus thermophilus at 2.6 A resolution. In the structure, two
      amino-terminal domains of the sigma subunit form a V-shaped structure near the
      opening of the upstream DNA-binding channel of the active site cleft. The
      carboxy-terminal domain of sigma is near the outlet of the RNA-exit channel,
      about 57 A from the N-terminal domains. The extended linker domain forms a
      hairpin protruding into the active site cleft, then stretching through the
      RNA-exit channel to connect the N- and C-terminal domains. The holoenzyme
      structure provides insight into the structural organization of transcription
      intermediate complexes and into the mechanism of transcription initiation.
FAU - Vassylyev, Dmitry G
AU  - Vassylyev DG
AD  - Cellular Signaling Laboratory, RIKEN Harima Institute at Spring-8, 1-1-1 Kouto,
      Mikazuki-cho, Sayo, Hyogo 679-5148, Japan. dmitry@yumiyoshi.harima.riken.go.jp
FAU - Sekine, Shun-ichi
AU  - Sekine S
FAU - Laptenko, Oleg
AU  - Laptenko O
FAU - Lee, Jookyung
AU  - Lee J
FAU - Vassylyeva, Marina N
AU  - Vassylyeva MN
FAU - Borukhov, Sergei
AU  - Borukhov S
FAU - Yokoyama, Shigeyuki
AU  - Yokoyama S
LA  - eng
SI  - PDB/1IW7
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20020508
PL  - England
TA  - Nature
JT  - Nature
JID - 0410462
RN  - 0 (DNA-Binding Proteins)
RN  - 0 (Holoenzymes)
RN  - 0 (Sigma Factor)
RN  - 9007-49-2 (DNA)
RN  - EC 2.7.7.- (RNA polymerase sigma 70)
RN  - EC 2.7.7.6 (DNA-Directed RNA Polymerases)
RN  - I38ZP9992A (Magnesium)
SB  - IM
MH  - Amino Acid Sequence
MH  - Binding Sites
MH  - Catalytic Domain
MH  - Crystallography, X-Ray
MH  - DNA/chemistry/genetics/metabolism
MH  - DNA-Binding Proteins/chemistry/metabolism
MH  - DNA-Directed RNA Polymerases/*chemistry/metabolism
MH  - Holoenzymes/chemistry/metabolism
MH  - Magnesium/metabolism
MH  - Models, Molecular
MH  - Molecular Sequence Data
MH  - Nucleic Acid Conformation
MH  - Promoter Regions, Genetic/genetics
MH  - Protein Structure, Secondary
MH  - Protein Structure, Tertiary
MH  - Sigma Factor/chemistry/metabolism
MH  - Thermus thermophilus/*enzymology
MH  - Zinc Fingers
EDAT- 2002/05/10 10:00
MHDA- 2002/07/13 10:01
CRDT- 2002/05/10 10:00
PHST- 2002/05/10 10:00 [pubmed]
PHST- 2002/07/13 10:01 [medline]
PHST- 2002/05/10 10:00 [entrez]
AID - 10.1038/nature752 [doi]
AID - nature752 [pii]
PST - ppublish
SO  - Nature. 2002 Jun 13;417(6890):712-9. doi: 10.1038/nature752. Epub 2002 May 8.