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- PDB-3ais: Crystal structure of a mutant beta-glucosidase in wheat complexed... -

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Basic information

Entry
Database: PDB / ID: 3ais
TitleCrystal structure of a mutant beta-glucosidase in wheat complexed with DIMBOA-Glc
ComponentsBeta-glucosidase
KeywordsHYDROLASE / TIM barrel
Function / homology
Function and homology information


4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl glucoside beta-D-glucosidase / DIMBOA glucoside beta-D-glucosidase activity / : / beta-glucosidase / beta-glucosidase activity / chloroplast / carbohydrate metabolic process
Similarity search - Function
Glycoside hydrolase family 1, active site / Glycosyl hydrolases family 1 active site. / Glycosyl hydrolases family 1, N-terminal conserved site / Glycosyl hydrolases family 1 N-terminal signature. / Glycosyl hydrolase family 1 / Glycoside hydrolase family 1 / Glycosidases / Glycoside hydrolase superfamily / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
beta-D-glucopyranose / Chem-HBK / 4-hydroxy-7-methoxy-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-yl glucoside beta-D-glucosidase 1b, chloroplastic
Similarity search - Component
Biological speciesTriticum aestivum (bread wheat)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.2 Å
AuthorsSue, M. / Nakamura, C. / Miyamoto, T. / Yajima, S.
CitationJournal: Plant Sci. / Year: 2011
Title: Active-site architecture of benzoxazinone-glucoside beta-D-glucosidases in Triticeae
Authors: Sue, M. / Nakamura, C. / Miyamoto, T. / Yajima, S.
History
DepositionMay 18, 2010Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Mar 16, 2011Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Apr 4, 2012Group: Database references
Revision 1.3Jul 29, 2020Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Structure summary
Category: chem_comp / entity ...chem_comp / entity / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / struct_conn / struct_ref_seq_dif / struct_site / struct_site_gen
Item: _chem_comp.name / _chem_comp.type ..._chem_comp.name / _chem_comp.type / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _struct_conn.pdbx_leaving_atom_flag / _struct_ref_seq_dif.details
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 1.4Nov 1, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.5Oct 23, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Beta-glucosidase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)64,5003
Polymers64,1091
Non-polymers3912
Water5,459303
1
A: Beta-glucosidase
hetero molecules
x 6


Theoretical massNumber of molelcules
Total (without water)386,99918
Polymers384,6516
Non-polymers2,34812
Water1086
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation5_555z,x,y1
crystal symmetry operation9_555y,z,x1
crystal symmetry operation14_444-y-1/4,-x-1/4,-z-1/41
crystal symmetry operation19_444-x-1/4,-z-1/4,-y-1/41
crystal symmetry operation24_444-z-1/4,-y-1/4,-x-1/41
Buried area15320 Å2
ΔGint-68 kcal/mol
Surface area97880 Å2
MethodPISA
Unit cell
Length a, b, c (Å)194.053, 194.053, 194.053
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number213
Space group name H-MP4132
Components on special symmetry positions
IDModelComponents
11A-701-

HOH

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Components

#1: Protein Beta-glucosidase


Mass: 64108.543 Da / Num. of mol.: 1 / Fragment: residues in UNP 50-569 / Mutation: E191A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Triticum aestivum (bread wheat) / Gene: TaGlu1b / Plasmid: pET30a / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 Codonplus(de3) Ril / References: UniProt: Q1XH05, beta-glucosidase
#2: Sugar ChemComp-BGC / beta-D-glucopyranose / beta-D-glucose / D-glucose / glucose


Type: D-saccharide, beta linking / Mass: 180.156 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Formula: C6H12O6
IdentifierTypeProgram
DGlcpbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
b-D-glucopyranoseCOMMON NAMEGMML 1.0
b-D-GlcpIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#3: Chemical ChemComp-HBK / (2S)-2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one


Mass: 211.171 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C9H9NO5
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 303 / Source method: isolated from a natural source / Formula: H2O
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: 4.75 Å3/Da / Density % sol: 74.1 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 7.2
Details: 10mM HEPES, 1M LiSO4, 150mM NaCl, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K

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Data collection

DiffractionMean temperature: 95 K
Diffraction sourceSource: SYNCHROTRON / Site: Photon Factory / Beamline: BL-6A / Wavelength: 0.978 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Feb 17, 2007
RadiationMonochromator: triangular Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.978 Å / Relative weight: 1
ReflectionResolution: 2.2→50 Å / Num. obs: 63693 / % possible obs: 100 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 16.2 % / Rmerge(I) obs: 0.114 / Net I/σ(I): 35.4
Reflection shellResolution: 2.2→2.28 Å / Redundancy: 10.2 % / Rmerge(I) obs: 0.983 / Mean I/σ(I) obs: 3.8 / % possible all: 100

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Processing

Software
NameVersionClassification
ADSCQuantumdata collection
MOLREPphasing
REFMAC5.2.0019refinement
HKL-2000data reduction
HKL-2000data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 2DGA

2dga


Resolution: 2.2→50 Å / Cor.coef. Fo:Fc: 0.939 / Cor.coef. Fo:Fc free: 0.935 / Cross valid method: THROUGHOUT / ESU R Free: 0.142 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.23097 3107 5.1 %RANDOM
Rwork0.22129 ---
obs0.22178 58247 96.41 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 29.808 Å2
Refinement stepCycle: LAST / Resolution: 2.2→50 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3965 0 26 303 4294
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0070.0224116
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.3631.9455583
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg1.4615490
X-RAY DIFFRACTIONr_dihedral_angle_2_deg35.52724.106207
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.08815656
X-RAY DIFFRACTIONr_dihedral_angle_4_deg21.1991520
X-RAY DIFFRACTIONr_chiral_restr0.1040.2560
X-RAY DIFFRACTIONr_gen_planes_refined0.010.023232
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined0.2360.22158
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined0.3320.22827
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1270.2302
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.1350.228
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.1320.213
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it1.5421.52441
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it2.3523931
X-RAY DIFFRACTIONr_scbond_it2.06631675
X-RAY DIFFRACTIONr_scangle_it2.9914.51652
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.199→2.256 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.327 258 -
Rwork0.291 4183 -
obs--95.9 %

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