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- PDB-3qhn: Crystal analysis of the complex structure, E201A-cellotetraose, o... -

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Basic information

Entry
Database: PDB / ID: 3qhn
TitleCrystal analysis of the complex structure, E201A-cellotetraose, of endocellulase from pyrococcus horikoshii
Components458aa long hypothetical endo-1,4-beta-glucanase
KeywordsHYDROLASE / cellulase / endoglucanase / catalytic domain
Function / homology
Function and homology information


cellulose catabolic process / hydrolase activity, hydrolyzing O-glycosyl compounds / metal ion binding
Similarity search - Function
CGP-CTERM domain / Glycoside hydrolase, family 5, conserved site / Glycosyl hydrolases family 5 signature. / Glycoside hydrolase, family 5 / Cellulase (glycosyl hydrolase family 5) / Glycosidases / Glycoside hydrolase superfamily / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
beta-cellobiose / beta-cellotetraose / 458aa long hypothetical endo-1,4-beta-glucanase
Similarity search - Component
Biological speciesPyrococcus horikoshii (archaea)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.99 Å
AuthorsKim, H.-W. / Ishikawa, K.
Citation
Journal: Biochem.J. / Year: 2011
Title: Functional analysis of hyperthermophilic endocellulase from Pyrococcus horikoshii by crystallographic snapshots
Authors: Kim, H.-W. / Ishikawa, K.
#1: Journal: Acta Crystallogr.,Sect.F / Year: 2008
Title: Crystallization and preliminary X-ray analysis of endoglucanase from Pyrococcus horikoshii
Authors: Kim, H.-W. / Mino, K. / Ishikawa, K.
#2: Journal: Proteins / Year: 2010
Title: Structure of hyperthermophilic endocellulase from Pyrococcus horikoshii
Authors: Kim, H.-W. / Ishikawa, K.
History
DepositionJan 26, 2011Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Feb 1, 2012Provider: repository / Type: Initial release
Revision 1.1Nov 8, 2017Group: Refinement description / Category: software
Revision 2.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Database references / Derived calculations / Non-polymer description / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / entity_name_com / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_molecule_features / pdbx_nonpoly_scheme / pdbx_validate_close_contact / pdbx_validate_symm_contact / struct_conn / struct_conn_type / struct_ref_seq_dif / struct_site / struct_site_gen
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_asym_id / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.auth_seq_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.type_symbol / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.pdbx_synonyms / _chem_comp.type / _entity.formula_weight / _entity.pdbx_description / _entity.type / _pdbx_validate_symm_contact.auth_asym_id_2 / _pdbx_validate_symm_contact.auth_atom_id_2 / _pdbx_validate_symm_contact.auth_comp_id_2 / _pdbx_validate_symm_contact.auth_seq_id_2 / _struct_ref_seq_dif.details
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Nov 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 2.2Oct 16, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: 458aa long hypothetical endo-1,4-beta-glucanase
B: 458aa long hypothetical endo-1,4-beta-glucanase
C: 458aa long hypothetical endo-1,4-beta-glucanase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)158,1177
Polymers155,7753
Non-polymers2,3424
Water4,774265
1
A: 458aa long hypothetical endo-1,4-beta-glucanase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)52,5912
Polymers51,9251
Non-polymers6671
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
2
B: 458aa long hypothetical endo-1,4-beta-glucanase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)52,5912
Polymers51,9251
Non-polymers6671
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
3
C: 458aa long hypothetical endo-1,4-beta-glucanase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)52,9343
Polymers51,9251
Non-polymers1,0092
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)162.325, 58.347, 138.271
Angle α, β, γ (deg.)90.00, 109.61, 90.00
Int Tables number5
Space group name H-MC121

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Components

#1: Protein 458aa long hypothetical endo-1,4-beta-glucanase / endoglucanase


Mass: 51924.844 Da / Num. of mol.: 3 / Mutation: E201A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pyrococcus horikoshii (archaea) / Strain: OT3 / Gene: PH1171 / Plasmid: PET11A / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: O58925, cellulase
#2: Polysaccharide beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose / beta-cellotetraose


Type: oligosaccharide, Oligosaccharide / Class: Metabolism / Mass: 666.578 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Details: oligosaccharide / References: beta-cellotetraose
DescriptorTypeProgram
DGlcpb1-4DGlcpb1-4DGlcpb1-4DGlcpb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,4,3/[a2122h-1b_1-5]/1-1-1-1/a4-b1_b4-c1_c4-d1WURCSPDB2Glycan 1.1.0
[][b-D-Glcp]{[(4+1)][b-D-Glcp]{[(4+1)][b-D-Glcp]{[(4+1)][b-D-Glcp]{}}}}LINUCSPDB-CARE
#3: Polysaccharide beta-D-glucopyranose-(1-4)-beta-D-glucopyranose / beta-cellobiose


Type: oligosaccharide, Oligosaccharide / Class: Metabolism / Mass: 342.297 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: oligosaccharide / References: beta-cellobiose
DescriptorTypeProgram
DGlcpb1-4DGlcpb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][b-D-Glcp]{[(4+1)][b-D-Glcp]{}}LINUCSPDB-CARE
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 265 / 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: 1.98 Å3/Da / Density % sol: 37.91 %
Crystal growTemperature: 295 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: 1.5M AMMONIUM PHOSPHATE, 0.1M MES BUFFER, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL38B1 / Wavelength: 1
DetectorType: RIGAKU JUPITER 210 / Detector: CCD / Date: Dec 2, 2008
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.99→50 Å / Num. obs: 79673 / % possible obs: 95.1 % / Redundancy: 3.4 % / Rmerge(I) obs: 0.072 / Net I/σ(I): 12.1
Reflection shellResolution: 1.99→2.06 Å / Redundancy: 3.1 % / Rmerge(I) obs: 0.287 / % possible all: 82.1

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Processing

Software
NameVersionClassification
REFMAC5.2.0019refinement
HKL-2000data reduction
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 2ZUM

2zum


Resolution: 1.99→28.99 Å / Cor.coef. Fo:Fc: 0.95 / Cor.coef. Fo:Fc free: 0.928 / SU B: 4.694 / SU ML: 0.131 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R Free: 0.182 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.248 3985 5 %RANDOM
Rwork0.196 ---
obs0.198 75684 94.8 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 29.68 Å2
Baniso -1Baniso -2Baniso -3
1-0.21 Å20 Å20.13 Å2
2---0.06 Å20 Å2
3----0.06 Å2
Refinement stepCycle: LAST / Resolution: 1.99→28.99 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms9201 0 158 265 9624
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0220.0229705
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.8451.95313271
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg7.03351128
X-RAY DIFFRACTIONr_dihedral_angle_2_deg36.68624.258465
X-RAY DIFFRACTIONr_dihedral_angle_3_deg16.314151443
X-RAY DIFFRACTIONr_dihedral_angle_4_deg15.8911530
X-RAY DIFFRACTIONr_chiral_restr0.1350.21375
X-RAY DIFFRACTIONr_gen_planes_refined0.0090.027512
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined0.2090.24629
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined0.3170.26484
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1480.2513
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.2190.255
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.2380.27
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it1.1461.55779
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.81429075
X-RAY DIFFRACTIONr_scbond_it2.63534765
X-RAY DIFFRACTIONr_scangle_it3.5794.54196
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.99→2.04 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.335 236 -
Rwork0.25 4525 -
obs--77.36 %

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