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1BDF

STRUCTURE OF ESCHERICHIA COLI RNA POLYMERASE ALPHA SUBUNIT N-TERMINAL DOMAIN

Experimental procedure
Source typeSYNCHROTRON
Source detailsNSLS BEAMLINE X4A
Synchrotron siteNSLS
BeamlineX4A
Temperature [K]95
Detector technologyIMAGE PLATE
Collection date1998-10
DetectorRIGAKU RAXIS IV
Spacegroup nameH 3 2
Unit cell lengths117.200, 117.200, 350.400
Unit cell angles90.00, 90.00, 120.00
Refinement procedure
Resolution6.000 - 2.500
R-factor0.225
Rwork0.225
R-free0.30800
Structure solution methodMULTIPLE ISOMORPHOUS REPLACEMENT
RMSD bond length0.009
RMSD bond angle1.740
Data reduction softwareDENZO
Data scaling softwareSCALEPACK
Phasing softwarePHASES
Refinement softwareX-PLOR (3.8)
Data quality characteristics
 OverallOuter shell
Low resolution limit [Å]20.0002.590
High resolution limit [Å]2.5002.500
Rmerge0.0600.190
Total number of observations145903

*

Number of reflections27865
<I/σ(I)>11.72.5
Completeness [%]86.952.3
Redundancy5.33
Crystallization Conditions
crystal IDmethodpHtemperaturedetails
1Vapor diffusion

*

8.754

*

pH 8.75
Crystallization Reagents in Literatures
IDcrystal IDsolutionreagent nameconcentration (unit)details
11dropprotein15 (mg/ml)
21reservoirbeta-mercaptoethanol5 (mM)
31reservoir0.2 (M)
41reservoirTris-HCl100 (mM)
51reservoir100 (mM)
61reservoirPEG40018-22 (%)

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