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4H99

Bacterial Photosynthetic Reaction Center from Rhodobacter sphaeroides with ILE M265 replaced with THR

Experimental procedure
Experimental methodSINGLE WAVELENGTH
Source typeSYNCHROTRON
Source detailsAPS BEAMLINE 21-ID-D
Synchrotron siteAPS
Beamline21-ID-D
Temperature [K]100
Detector technologyCCD
Collection date2010-03-11
DetectorMARMOSAIC 300 mm CCD
Spacegroup nameP 31 2 1
Unit cell lengths138.870, 138.870, 185.490
Unit cell angles90.00, 90.00, 120.00
Refinement procedure
Resolution19.770 - 2.970
R-factor0.174
Rwork0.174
R-free0.19400
Structure solution methodMOLECULAR REPLACEMENT
Starting model (for MR)1pcr
RMSD bond length0.035
RMSD bond angle3.196
Data reduction softwareXDS
Data scaling softwareXSCALE
Phasing softwareREFMAC
Refinement softwareREFMAC (5.5.0109)
Data quality characteristics
 OverallInner shellOuter shell
Low resolution limit [Å]120.2653.050
High resolution limit [Å]2.97013.2802.970
Rmerge0.0940.0270.762
Number of reflections42919
<I/σ(I)>15.7944.882.22
Completeness [%]99.26499.9
Crystallization Conditions
crystal IDmethodpHtemperaturedetails
1VAPOR DIFFUSION, SITTING DROP7.5291drop: 14 mg/mL protein, 0.8 M potassium phosphate, 5 mM Tris, 5 uM EDTA, 3.2% 1,2,3-heptanetriol, 2.0% dioxane, 140 mM sodium chloride, 0.045% LDAO, reservoir: 1.6 M potassium phosphate, cryoprotectant: 28% ethylene glycol, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 291K

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