2EEX

Crystal structure of Cel44A, GH family 44 endoglucanase from Clostridium thermocellum


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2E4T 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP5.82930.1M MES-NaOH pH5.8, 16% (w/v) PEG MME 550, 6mM ZnSO4, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.141.45

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 47.944α = 90
b = 59.12β = 90
c = 171.113γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315mirrors2005-11-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSPRING-8 BEAMLINE BL41XU1.0000SPring-8BL41XU

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
125096.90.07512.254.83383032781-3-34.4
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
122.0781.70.1594.183.52699

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2E4T219.7232666162396.70.1650.1650.201RANDOM13.9
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
-0.35-4.825.17
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.6
c_scangle_it2.73
c_scbond_it1.91
c_mcangle_it1.47
c_angle_deg1.3
c_mcbond_it1.05
c_improper_angle_d0.76
c_bond_d0.006
c_bond_d_na
c_bond_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.6
c_scangle_it2.73
c_scbond_it1.91
c_mcangle_it1.47
c_angle_deg1.3
c_mcbond_it1.05
c_improper_angle_d0.76
c_bond_d0.006
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4012
Nucleic Acid Atoms
Solvent Atoms459
Heterogen Atoms71

Software

Software
Software NamePurpose
CNSrefinement
ADSCdata collection
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing