Crystal structure of a GH26 enzyme (EiGH26a) in complex with Mannose-beta-1,4-Glucose-beta-1,4-Mannose


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelAlphaFold 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP8.52910.2M magnesium chloride hexahydrate; 0.1M tris hydrochloride pH 8.5; 30% (w/v) PEG 4000
Crystal Properties
Matthews coefficientSolvent content
2.1141.57

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 64.85α = 90
b = 65.32β = 109.23
c = 83.27γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 2M2025-10-24MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONLNLS SIRIUS BEAMLINE MANACA0.977200LNLS SIRIUSMANACA

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)CC (Half)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
11.644.6799.70.0360.050.9986.566.4843399
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.61.70.20.2810.904

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1.644.671.3543236216399.70.25620.25480.25470.28160.2832
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d12.821
f_angle_d0.816
f_chiral_restr0.052
f_plane_restr0.006
f_bond_d0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2600
Nucleic Acid Atoms
Solvent Atoms129
Heterogen Atoms35

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing