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- PDB-9g8h: Crystal structure of a galactose oxidase in complex with galactose -

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Basic information

Entry
Database: PDB / ID: 9g8h
TitleCrystal structure of a galactose oxidase in complex with galactose
Components
  • Galactose oxidase
  • SER-HIS-SER-SER-GLY-ALA
KeywordsOXIDOREDUCTASE / oxidoreductases / galactose oxidase / Auxiliary Activity 5 family / biocatalysis
Function / homology
Function and homology information


galactose oxidase / galactose oxidase activity / carbohydrate metabolic process
Similarity search - Function
Kelch motif / Galactose oxidase-like, Early set domain / Galactose oxidase, central domain superfamily / Galactose oxidase-like, Early set domain / Galactose oxidase/kelch, beta-propeller / Kelch / Kelch repeat type 1 / Coagulation factors 5/8 type C domain (FA58C) profile. / F5/8 type C domain / Coagulation factor 5/8 C-terminal domain ...Kelch motif / Galactose oxidase-like, Early set domain / Galactose oxidase, central domain superfamily / Galactose oxidase-like, Early set domain / Galactose oxidase/kelch, beta-propeller / Kelch / Kelch repeat type 1 / Coagulation factors 5/8 type C domain (FA58C) profile. / F5/8 type C domain / Coagulation factor 5/8 C-terminal domain / Galactose-binding-like domain superfamily / Immunoglobulin E-set / Immunoglobulin-like fold
Similarity search - Domain/homology
beta-D-galactopyranose / PHOSPHATE ION / Galactose oxidase
Similarity search - Component
Biological speciesPseudarthrobacter siccitolerans (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.1 Å
AuthorsBorges, P.T. / Frazao, T. / Frazao, C. / Martins, L.
Funding support Portugal, 1items
OrganizationGrant numberCountry
Foundation for Science and Technology (FCT) Portugal
CitationJournal: To Be Published
Title: Unraveling the Catalytic and Structural Properties of a New Bacterial Galactose Oxidase
Authors: Taborda, A. / Frazao, T. / Frazao, C. / Borges, P.T. / Martins, L.
History
DepositionJul 23, 2024Deposition site: PDBE / Processing site: PDBE
Revision 1.0Aug 6, 2025Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Galactose oxidase
Q: SER-HIS-SER-SER-GLY-ALA
hetero molecules


Theoretical massNumber of molelcules
Total (without water)65,2448
Polymers64,5462
Non-polymers6986
Water5,513306
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1570 Å2
ΔGint-13 kcal/mol
Surface area22130 Å2
MethodPISA
Unit cell
Length a, b, c (Å)48.005, 61.406, 186.396
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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Protein / Protein/peptide / Sugars , 3 types, 3 molecules AQ

#1: Protein Galactose oxidase


Mass: 64000.801 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pseudarthrobacter siccitolerans (bacteria)
Gene: GAOA, ARTSIC4J27_1011 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A024GZ97, galactose oxidase
#2: Protein/peptide SER-HIS-SER-SER-GLY-ALA


Mass: 545.525 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pseudarthrobacter siccitolerans (bacteria)
Production host: Escherichia coli (E. coli)
#3: Sugar ChemComp-GAL / beta-D-galactopyranose / beta-D-galactose / D-galactose / galactose


Type: D-saccharide, beta linking / Mass: 180.156 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H12O6 / Feature type: SUBJECT OF INVESTIGATION
IdentifierTypeProgram
DGalpbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
b-D-galactopyranoseCOMMON NAMEGMML 1.0
b-D-GalpIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GalSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Non-polymers , 6 types, 311 molecules

#4: Chemical ChemComp-PG4 / TETRAETHYLENE GLYCOL


Mass: 194.226 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C8H18O5 / Feature type: SUBJECT OF INVESTIGATION / Comment: precipitant*YM
#5: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H8O3 / Feature type: SUBJECT OF INVESTIGATION
#6: Chemical ChemComp-PO4 / PHOSPHATE ION


Mass: 94.971 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: PO4 / Feature type: SUBJECT OF INVESTIGATION
#7: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca / Feature type: SUBJECT OF INVESTIGATION
#8: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: SO4 / Feature type: SUBJECT OF INVESTIGATION
#9: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 306 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.13 Å3/Da / Density % sol: 42.2 %
Crystal growTemperature: 293 K / Method: vapor diffusion
Details: 0.1 M sodium HEPES and MOPS pH 7.5, 0.03 M magnesium chloride hexahydrate, 0.03 M calcium chloride dihydrate, 12.5% (v/v) MPD, 12.5% (w/v) PEG 1000 and 12.5% (w/v) PEG 3350

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: MASSIF-3 / Wavelength: 0.97918 Å
DetectorType: DECTRIS EIGER X 4M / Detector: PIXEL / Date: Jul 21, 2022
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97918 Å / Relative weight: 1
ReflectionResolution: 2.09→58.39 Å / Num. obs: 22173 / % possible obs: 89.2 % / Redundancy: 5.1 % / CC1/2: 0.988 / Net I/σ(I): 5.6
Reflection shellResolution: 2.09→2.32 Å / Num. unique obs: 1109 / CC1/2: 0.539

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Processing

Software
NameVersionClassification
REFMAC5.8.0419refinement
XDSdata scaling
XDSdata reduction
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.1→58.39 Å / Cor.coef. Fo:Fc: 0.949 / Cor.coef. Fo:Fc free: 0.891 / SU B: 14.644 / SU ML: 0.19 / Cross valid method: FREE R-VALUE / ESU R: 0.866 / ESU R Free: 0.282 / Stereochemistry target values: MAXIMUM LIKELIHOOD
RfactorNum. reflection% reflectionSelection details
Rfree0.23667 1075 4.8 %RANDOM
Rwork0.1608 ---
obs0.16453 21098 66.92 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 17.67 Å2
Baniso -1Baniso -2Baniso -3
1-0.02 Å2-0 Å2-0 Å2
2--0.02 Å2-0 Å2
3----0.05 Å2
Refinement stepCycle: 1 / Resolution: 2.1→58.39 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4537 0 42 306 4885
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0060.0124686
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.421.6526410
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg7.5535621
X-RAY DIFFRACTIONr_dihedral_angle_2_deg6.179530
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.85710642
X-RAY DIFFRACTIONr_dihedral_angle_4_deg
X-RAY DIFFRACTIONr_chiral_restr0.0930.2728
X-RAY DIFFRACTIONr_gen_planes_refined0.0060.023676
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.9171.3692490
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.5512.4563109
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it1.3911.4742196
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined6.41216.777290
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.1→2.154 Å
RfactorNum. reflection% reflection
Rfree0.421 4 -
Rwork0.263 78 -
obs--3.44 %
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL11 (°2)L12 (°2)L13 (°2)L22 (°2)L23 (°2)L33 (°2)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T11 (Å2)T12 (Å2)T13 (Å2)T22 (Å2)T23 (Å2)T33 (Å2)Origin x (Å)Origin y (Å)Origin z (Å)
10.11690.05570.05340.14320.0940.152-0.01650.0032-0.0014-0.00480.01270.0089-0.00720.00360.00380.00350.001-0.00420.00370.00090.0345.00943.308622.9955
200000000000000-00.0149000.014900.0149000

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