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- PDB-3vii: Crystal structure of beta-glucosidase from termite Neotermes kosh... -

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Basic information

Entry
Database: PDB / ID: 3vii
TitleCrystal structure of beta-glucosidase from termite Neotermes koshunensis in complex with Bis-Tris
ComponentsBeta-glucosidase
KeywordsHYDROLASE / CELLULASES / GLYCOSYL HYDROLASE
Function / homology
Function and homology information


beta-glucosidase / beta-glucosidase activity / carbohydrate metabolic process
Similarity search - Function
Glycoside hydrolase family 1, active site / Glycosyl hydrolases family 1 active site. / Glycosyl hydrolase family 1 / Glycoside hydrolase family 1 / Glycosidases / Glycoside hydrolase superfamily / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
Biological speciesNeotermes koshunensis (cockroach)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 0.97 Å
AuthorsJeng, W.Y. / Liu, C.I. / Wang, A.H.J.
CitationJournal: Acta Crystallogr.,Sect.D / Year: 2012
Title: High-resolution structures of Neotermes koshunensis beta-glucosidase mutants provide insights into the catalytic mechanism and the synthesis of glucoconjugates
Authors: Jeng, W.Y. / Wang, N.C. / Lin, C.T. / Chang, W.J. / Liu, C.I. / Wang, A.H.J.
History
DepositionOct 3, 2011Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jul 4, 2012Provider: repository / Type: Initial release
Revision 1.1Jun 26, 2013Group: Database references
Revision 1.2Nov 8, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _struct_conn.pdbx_dist_value / _struct_conn.ptnr2_auth_seq_id / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Beta-glucosidase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)55,9504
Polymers55,6261
Non-polymers3243
Water13,043724
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
A: Beta-glucosidase
hetero molecules

A: Beta-glucosidase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)111,9008
Polymers111,2512
Non-polymers6496
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_455-x-1,y,-z1
Buried area3540 Å2
ΔGint-19 kcal/mol
Surface area32350 Å2
MethodPISA
Unit cell
Length a, b, c (Å)93.020, 68.472, 74.774
Angle α, β, γ (deg.)90.00, 95.32, 90.00
Int Tables number5
Space group name H-MC121
Components on special symmetry positions
IDModelComponents
11A-1004-

HOH

21A-1229-

HOH

31A-1250-

HOH

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Components

#1: Protein Beta-glucosidase


Mass: 55625.516 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Neotermes koshunensis (cockroach) / Gene: NkBG / Plasmid: pET-21a / Production host: Escherichia coli (E. coli) / Strain (production host): BL-21 (DE3) / References: UniProt: Q8T0W7, beta-glucosidase
#2: Chemical ChemComp-BTB / 2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL / BIS-TRIS BUFFER


Mass: 209.240 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C8H19NO5 / Comment: pH buffer*YM
#3: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H8O3
#4: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 724 / Source method: isolated from a natural source / Formula: H2O

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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: 42.29 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop / pH: 6.5
Details: 0.1 M Bis-Tris, 18-21%(w/v) PEG 3350, 0.1-0.25 M MgCl2, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: NSRRC / Beamline: BL13B1 / Wavelength: 0.8 Å
DetectorType: ADSC QUANTUM 315r / Detector: CCD / Date: Jan 2, 2009
Details: Vertically Collimating Premirror, Toroidal Focusing Mirror
RadiationMonochromator: LN2-Cooled Fixed-Exit Double Crystal Si(111) Monochromator
Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.8 Å / Relative weight: 1
ReflectionResolution: 0.97→30 Å / Num. all: 274396 / Num. obs: 271148 / % possible obs: 98.8 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 1 / Redundancy: 4.7 % / Biso Wilson estimate: 10 Å2 / Rmerge(I) obs: 0.052 / Net I/σ(I): 29.6
Reflection shellResolution: 0.97→1 Å / Redundancy: 4.5 % / Rmerge(I) obs: 0.598 / Mean I/σ(I) obs: 2.1 / Num. unique all: 27341 / % possible all: 99.6

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Processing

Software
NameVersionClassification
HKL-2000data collection
MOLREPphasing
REFMAC5.5.0109refinement
HKL-2000data reduction
HKL-2000data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 3AHZ

3ahz


Resolution: 0.97→27.2 Å / Cor.coef. Fo:Fc: 0.978 / Cor.coef. Fo:Fc free: 0.973 / SU B: 0.485 / SU ML: 0.012 / Isotropic thermal model: Isotropic with TLS / Cross valid method: THROUGHOUT / ESU R Free: 0.019 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.14501 13672 5 %RANDOM
Rwork0.12687 ---
obs0.12779 270983 98.67 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 12.664 Å2
Baniso -1Baniso -2Baniso -3
1--0.59 Å20 Å2-0.43 Å2
2---0.2 Å20 Å2
3---0.71 Å2
Refinement stepCycle: LAST / Resolution: 0.97→27.2 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3811 0 21 724 4556
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0070.0224009
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.4061.945469
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.995491
X-RAY DIFFRACTIONr_dihedral_angle_2_deg33.86224.225213
X-RAY DIFFRACTIONr_dihedral_angle_3_deg10.79715628
X-RAY DIFFRACTIONr_dihedral_angle_4_deg13.9841523
X-RAY DIFFRACTIONr_chiral_restr0.0960.2564
X-RAY DIFFRACTIONr_gen_planes_refined0.010.0213177
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_it1.2731.52374
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.85323832
X-RAY DIFFRACTIONr_scbond_it2.631635
X-RAY DIFFRACTIONr_scangle_it3.7264.51627
X-RAY DIFFRACTIONr_rigid_bond_restr1.19734009
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 0.97→1.023 Å / Total num. of bins used: 10
RfactorNum. reflection% reflection
Rfree0.225 1975 -
Rwork0.217 37629 -
obs-39604 99.06 %
Refinement TLS params.Method: refined / Origin x: -29.1075 Å / Origin y: 87.7197 Å / Origin z: 15.5499 Å
111213212223313233
T0.0125 Å20.0042 Å20.0026 Å2-0.0152 Å2-0.0024 Å2--0.0056 Å2
L0.2111 °2-0.0281 °20.0498 °2-0.0717 °2-0.0457 °2--0.0628 °2
S-0.016 Å °-0.0375 Å °-0.0021 Å °0.0092 Å °0.0137 Å °-0.0146 Å °-0.0113 Å °-0.0118 Å °0.0023 Å °

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