3H2W

Structure of A. acidocaldarius cellulase CelA in complex with cellobiose


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3GZKPDB ENTRY 3GZK

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP52930.6M hexanediol, 100mM sodium acetate, pH5.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.2846

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 84.892α = 90
b = 129.398β = 90
c = 48.965γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315rkirkpatrick baez2008-10-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSOLEIL BEAMLINE PROXIMA 10.979SOLEILPROXIMA 1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
12.662899.60.16112.16161291612911
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.662.8298.70.6972.962504

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (I)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 3GZK2.6625.9222161291528180699.840.195910.192860.25421RANDOM24.857
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]
-0.020.010.01
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.315
r_dihedral_angle_3_deg17.68
r_dihedral_angle_4_deg17.011
r_dihedral_angle_1_deg6.455
r_scangle_it2.091
r_angle_refined_deg1.401
r_scbond_it1.297
r_mcangle_it0.954
r_angle_other_deg0.92
r_mcbond_it0.565
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.315
r_dihedral_angle_3_deg17.68
r_dihedral_angle_4_deg17.011
r_dihedral_angle_1_deg6.455
r_scangle_it2.091
r_angle_refined_deg1.401
r_scbond_it1.297
r_mcangle_it0.954
r_angle_other_deg0.92
r_mcbond_it0.565
r_symmetry_vdw_other0.295
r_nbd_refined0.219
r_symmetry_vdw_refined0.203
r_metal_ion_refined0.2
r_nbd_other0.191
r_nbtor_refined0.188
r_xyhbond_nbd_refined0.161
r_symmetry_hbond_refined0.117
r_nbtor_other0.09
r_mcbond_other0.085
r_chiral_restr0.071
r_bond_refined_d0.013
r_gen_planes_refined0.004
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4086
Nucleic Acid Atoms
Solvent Atoms45
Heterogen Atoms39

Software

Software
Software NamePurpose
JDirectordata collection
PHASERphasing
REFMACrefinement
XDSdata reduction
XDSdata scaling