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- PDB-3c7g: Crystal structure of a glycoside hydrolase family 43 arabinoxylan... -

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Basic information

Entry
Database: PDB / ID: 3c7g
TitleCrystal structure of a glycoside hydrolase family 43 arabinoxylan arabinofuranohydrolase from Bacillus subtilis in complex with xylotetraose.
ComponentsEndo-1,4-beta-xylanase
KeywordsHYDROLASE / 5-bladed beta-propeller fold / beta-sandwich / Xylan degradation
Function / homology
Function and homology information


non-reducing end alpha-L-arabinofuranosidase / alpha-L-arabinofuranosidase activity / xylan catabolic process / carbohydrate binding / extracellular region / metal ion binding
Similarity search - Function
: / Cellulose binding, type IV / Cellulose Binding Domain Type IV / Carbohydrate binding module (family 6) / Glycoside hydrolase, family 43 / Glycosyl hydrolases family 43 / CBM6 (carbohydrate binding type-6) domain profile. / Carbohydrate binding module family 6 / Glycosyl hydrolase domain; family 43 / 5 Propeller ...: / Cellulose binding, type IV / Cellulose Binding Domain Type IV / Carbohydrate binding module (family 6) / Glycoside hydrolase, family 43 / Glycosyl hydrolases family 43 / CBM6 (carbohydrate binding type-6) domain profile. / Carbohydrate binding module family 6 / Glycosyl hydrolase domain; family 43 / 5 Propeller / Tachylectin-2; Chain A / Glycosyl hydrolase, five-bladed beta-propellor domain superfamily / Galactose-binding domain-like / Galactose-binding-like domain superfamily / Jelly Rolls / Sandwich / Mainly Beta
Similarity search - Domain/homology
Arabinoxylan arabinofuranohydrolase
Similarity search - Component
Biological speciesBacillus subtilis (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.02 Å
AuthorsVandermarliere, E. / Bourgois, T.M. / Winn, M.D. / Van Campenhout, S. / Volckaert, G. / Strelkov, S.V. / Delcour, J.A. / Rabijns, A. / Courtin, C.M.
CitationJournal: Biochem.J. / Year: 2009
Title: Structural analysis of a glycoside hydrolase family 43 arabinoxylan arabinofuranohydrolase in complex with xylotetraose reveals a different binding mechanism compared with other members of the same family.
Authors: Vandermarliere, E. / Bourgois, T.M. / Winn, M.D. / van Campenhout, S. / Volckaert, G. / Delcour, J.A. / Strelkov, S.V. / Rabijns, A. / Courtin, C.M.
History
DepositionFeb 7, 2008Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 18, 2008Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 2.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Database references / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / diffrn_source / entity / 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_nonpoly_scheme / pdbx_struct_assembly_gen / pdbx_struct_conn_angle / pdbx_validate_close_contact / struct_asym / struct_conn / struct_conn_type / struct_ref_seq_dif / struct_site / struct_site_gen
Item: _atom_site.auth_asym_id / _atom_site.auth_atom_id ..._atom_site.auth_asym_id / _atom_site.auth_atom_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _chem_comp.name / _chem_comp.type / _diffrn_source.pdbx_synchrotron_site / _entity.formula_weight / _entity.pdbx_description / _entity.pdbx_number_of_molecules / _entity.type / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.value / _pdbx_validate_close_contact.auth_asym_id_1 / _pdbx_validate_close_contact.auth_asym_id_2 / _pdbx_validate_close_contact.auth_atom_id_1 / _pdbx_validate_close_contact.auth_atom_id_2 / _pdbx_validate_close_contact.auth_seq_id_1 / _pdbx_validate_close_contact.auth_seq_id_2 / _struct_conn.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn_type.id / _struct_ref_seq_dif.details
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Aug 30, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_conn
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ..._chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_leaving_atom_flag

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Endo-1,4-beta-xylanase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)52,4886
Polymers51,7631
Non-polymers7255
Water8,035446
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)67.523, 72.401, 106.869
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 / Sugars , 2 types, 2 molecules A

#1: Protein Endo-1,4-beta-xylanase / Xylanase D


Mass: 51763.164 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bacillus subtilis (bacteria) / Gene: xynD / Production host: Escherichia coli (E. coli)
References: UniProt: Q45071, non-reducing end alpha-L-arabinofuranosidase
#2: Polysaccharide beta-D-xylopyranose-(1-4)-beta-D-xylopyranose-(1-4)-beta-D-xylopyranose-(1-4)-beta-D-xylopyranose


Type: oligosaccharide / Mass: 546.474 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DXylpb1-4DXylpb1-4DXylpb1-4DXylpb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,4,3/[a212h-1b_1-5]/1-1-1-1/a4-b1_b4-c1_c4-d1WURCSPDB2Glycan 1.1.0
[][b-D-Xylp]{[(4+1)][b-D-Xylp]{[(4+1)][b-D-Xylp]{[(4+1)][b-D-Xylp]{}}}}LINUCSPDB-CARE

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Non-polymers , 4 types, 450 molecules

#3: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#4: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Na
#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
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 446 / 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: 2.52 Å3/Da / Density % sol: 51.25 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 5
Details: 4.0 M Na formate , pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: EMBL/DESY, HAMBURG / Beamline: BW7A / Wavelength: 1.0322 Å
DetectorType: MAR CCD 165 mm / Detector: CCD
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.0322 Å / Relative weight: 1
ReflectionResolution: 2.02→50 Å / Num. obs: 33537 / % possible obs: 97 % / Redundancy: 4.5 % / Rmerge(I) obs: 0.046 / Rsym value: 4.6
Reflection shellResolution: 2.02→2.09 Å / Redundancy: 4.2 % / Rmerge(I) obs: 0.137 / Mean I/σ(I) obs: 8 / Num. unique all: 1596 / Rsym value: 13.7 / % possible all: 93.9

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Processing

Software
NameVersionClassification
REFMAC5.2.0019refinement
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: pdb entries 1gyh, 1w9t

1gyh

1w9t


Resolution: 2.02→31.96 Å / Cor.coef. Fo:Fc: 0.962 / Cor.coef. Fo:Fc free: 0.939 / SU B: 2.862 / SU ML: 0.081 / Cross valid method: THROUGHOUT / ESU R: 0.157 / ESU R Free: 0.142 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.1874 1788 5.3 %RANDOM
Rwork0.14262 ---
obs0.145 31709 95.17 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 13.734 Å2
Baniso -1Baniso -2Baniso -3
1-0.18 Å20 Å20 Å2
2---0.35 Å20 Å2
3---0.17 Å2
Refinement stepCycle: LAST / Resolution: 2.02→31.96 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3664 0 46 446 4156
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0140.0223828
X-RAY DIFFRACTIONr_angle_refined_deg1.7631.9295221
X-RAY DIFFRACTIONr_dihedral_angle_1_deg20.5155491
X-RAY DIFFRACTIONr_dihedral_angle_2_deg35.38424.132167
X-RAY DIFFRACTIONr_dihedral_angle_3_deg12.42915521
X-RAY DIFFRACTIONr_dihedral_angle_4_deg17.5981513
X-RAY DIFFRACTIONr_chiral_restr0.1220.2556
X-RAY DIFFRACTIONr_gen_planes_refined0.0070.023005
X-RAY DIFFRACTIONr_nbd_refined0.2310.22124
X-RAY DIFFRACTIONr_nbtor_refined0.3160.22646
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1670.2515
X-RAY DIFFRACTIONr_metal_ion_refined0.1610.211
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.260.255
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.3240.234
X-RAY DIFFRACTIONr_mcbond_it0.7711.52407
X-RAY DIFFRACTIONr_mcangle_it1.35623849
X-RAY DIFFRACTIONr_scbond_it1.89631497
X-RAY DIFFRACTIONr_scangle_it2.7744.51370
LS refinement shellResolution: 2.02→2.069 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.181 87 -
Rwork0.154 1645 -
obs--67.6 %

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