1GRJ

GREA TRANSCRIPT CLEAVAGE FACTOR FROM ESCHERICHIA COLI


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.320 
  • R-Value Work: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the GreA transcript cleavage factor from Escherichia coli.

Stebbins, C.E.Borukhov, S.Orlova, M.Polyakov, A.Goldfarb, A.Darst, S.A.

(1995) Nature 373: 636-640

  • DOI: 10.1038/373636a0

  • PubMed Abstract: 
  • Transcription elongation factors stimulate the activity of DNA-dependent RNA polymerases by increasing the overall elongation rate and the completion of RNA chains. One group of such factors, which includes Escherichia coli GreA, GreB and eukaryotic ...

    Transcription elongation factors stimulate the activity of DNA-dependent RNA polymerases by increasing the overall elongation rate and the completion of RNA chains. One group of such factors, which includes Escherichia coli GreA, GreB and eukaryotic SII (TFIIS), acts by inducing hydrolytic cleavage of the transcript within the RNA polymerase, followed by release of the 3'-terminal fragment. Here we report the crystal structure of GreA at 2.2 A resolution. The structure contains an amino-terminal domain consisting of an antiparallel alpha-helical coiled-coil dimer which extends into solution, reminiscent of the coiled coil in seryl-tRNA synthetases. A site near the tip of the coiled-coil 'finger' plays a direct role in the transcript cleavage reaction by contacting the 3'-end of the transcript. The structure exhibits an unusual asymmetric charge distribution which indicates the manner in which GreA interacts with the RNA polymerase elongation complex.


    Related Citations: 
    • Crystallization of Grea, a Transcript Cleavage Factor from Escherichia Coli
      Darst, S.A.,Stebbins, C.E.,Borukhov, S.,Orlova, M.,Feng, G.,Landick, R.,Goldfarb, A.
      (1994) J.Mol.Biol. 242: 582


    Organizational Affiliation

    Rockefeller University, New York, New York 10021.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GREA PROTEIN
A
158Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: greA
Find proteins for P0A6W5 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A6W5
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.320 
  • R-Value Work: 0.209 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 102.357α = 90.00
b = 42.660β = 90.00
c = 39.904γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORrefinement
X-PLORmodel building
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-07-10
    Type: Initial release
  • Version 1.1: 2008-03-21
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance