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- PDB-4pmz: Crystal structure of GH10 endo-b-1,4-xylanase (XynB) from Xanthom... -

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Basic information

Entry
Database: PDB / ID: 4pmz
TitleCrystal structure of GH10 endo-b-1,4-xylanase (XynB) from Xanthomonas axonopodis pv citri complexed with xylobiose
ComponentsXylanase
KeywordsHYDROLASE / xylanase
Function / homology
Function and homology information


endo-1,4-beta-xylanase activity / endo-1,4-beta-xylanase / xylan catabolic process / metal ion binding
Similarity search - Function
Glycoside hydrolase family 10 / Glycosyl hydrolases family 10 (GH10) domain profile. / Glycoside hydrolase family 10 domain / Glycosyl hydrolase family 10 / Glycosyl hydrolase family 10 / Glycosidases / Glycoside hydrolase superfamily / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
4beta-beta-xylobiose / Beta-xylanase
Similarity search - Component
Biological speciesXanthomonas axonopodis pv. citri (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.401 Å
AuthorsSantos, C.R. / Martins, V.P.M. / Zanphorlin, L.M. / Ruller, R. / Murakami, M.T.
Funding support Brazil, 1items
OrganizationGrant numberCountry
Sao Paulo Research Foundation (FAPESP)13/13309-0 Brazil
CitationJournal: J.Biol.Chem. / Year: 2014
Title: Molecular mechanisms associated with xylan degradation by xanthomonas plant pathogens.
Authors: Santos, C.R. / Hoffmam, Z.B. / de Matos Martins, V.P. / Zanphorlin, L.M. / de Paula Assis, L.H. / Honorato, R.V. / Lopes de Oliveira, P.S. / Ruller, R. / Murakami, M.T.
History
DepositionMay 22, 2014Deposition site: RCSB / Processing site: RCSB
Revision 1.0Oct 8, 2014Provider: repository / Type: Initial release
Revision 1.1Oct 15, 2014Group: Database references / Structure summary
Revision 1.2Nov 26, 2014Group: Database references
Revision 1.3Feb 4, 2015Group: Derived calculations
Revision 1.4Apr 17, 2019Group: Advisory / Author supporting evidence ...Advisory / Author supporting evidence / Data collection / Database references / Derived calculations / Other / Source and taxonomy / Structure summary
Category: citation / entity ...citation / entity / entity_src_gen / pdbx_audit_support / pdbx_database_status / pdbx_entity_nonpoly / pdbx_struct_assembly / pdbx_struct_conn_angle / pdbx_struct_oper_list / pdbx_unobs_or_zero_occ_atoms / struct_keywords
Item: _citation.journal_id_CSD / _entity.pdbx_description ..._citation.journal_id_CSD / _entity.pdbx_description / _entity_src_gen.pdbx_alt_source_flag / _pdbx_audit_support.funding_organization / _pdbx_database_status.pdb_format_compatible / _pdbx_entity_nonpoly.name / _pdbx_struct_assembly.oligomeric_details / _pdbx_struct_oper_list.symmetry_operation / _struct_keywords.text
Revision 1.5Jan 1, 2020Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 2.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Derived calculations / Non-polymer description / Refinement description / Structure summary
Category: atom_site / atom_site_anisotrop ...atom_site / atom_site_anisotrop / 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_struct_assembly_gen / pdbx_struct_conn_angle / pdbx_unobs_or_zero_occ_atoms / refine_hist / struct_asym / struct_conn / struct_conn_type / 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_asym_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.label_entity_id / _atom_site.type_symbol / _atom_site_anisotrop.U[1][1] / _atom_site_anisotrop.U[1][2] / _atom_site_anisotrop.U[1][3] / _atom_site_anisotrop.U[2][2] / _atom_site_anisotrop.U[2][3] / _atom_site_anisotrop.U[3][3] / _atom_site_anisotrop.pdbx_auth_asym_id / _atom_site_anisotrop.pdbx_auth_atom_id / _atom_site_anisotrop.pdbx_auth_comp_id / _atom_site_anisotrop.pdbx_auth_seq_id / _atom_site_anisotrop.pdbx_label_asym_id / _atom_site_anisotrop.pdbx_label_atom_id / _atom_site_anisotrop.pdbx_label_comp_id / _atom_site_anisotrop.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.src_method / _entity.type / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.value / _pdbx_unobs_or_zero_occ_atoms.auth_asym_id / _pdbx_unobs_or_zero_occ_atoms.auth_atom_id / _pdbx_unobs_or_zero_occ_atoms.auth_comp_id / _pdbx_unobs_or_zero_occ_atoms.auth_seq_id / _pdbx_unobs_or_zero_occ_atoms.label_asym_id / _pdbx_unobs_or_zero_occ_atoms.label_atom_id / _pdbx_unobs_or_zero_occ_atoms.label_comp_id / _refine_hist.d_res_high / _refine_hist.number_atoms_total / _refine_hist.pdbx_number_atoms_nucleic_acid / _refine_hist.pdbx_number_atoms_protein / _struct_asym.entity_id
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Sep 27, 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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Xylanase
B: Xylanase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)69,0436
Polymers68,3992
Non-polymers6454
Water10,431579
1
A: Xylanase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)34,5223
Polymers34,1991
Non-polymers3222
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
2
B: Xylanase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)34,5223
Polymers34,1991
Non-polymers3222
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)72.056, 49.238, 83.035
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein Xylanase


Mass: 34199.316 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xanthomonas axonopodis pv. citri (bacteria)
Strain: 306 / Gene: xynB, XAC4254 / Production host: Escherichia coli (E. coli) / References: UniProt: Q8PET6
#2: Polysaccharide beta-D-xylopyranose-(1-4)-beta-D-xylopyranose / 4beta-beta-xylobiose


Type: oligosaccharide, Oligosaccharide / Class: Metabolism / Mass: 282.245 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Details: oligosaccharide / References: 4beta-beta-xylobiose
DescriptorTypeProgram
DXylpb1-4DXylpb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a212h-1b_1-5]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][<C5O3>]{[(1+1)][b-D-Xylp]{}}LINUCSPDB-CARE
#3: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 579 / 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: 2.15 Å3/Da / Density % sol: 42.88 %
Crystal growTemperature: 291 K / Method: vapor diffusion, sitting drop / Details: Polyethylene glycol 8,000 / PH range: 5.0-6.0

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: LNLS / Beamline: W01B-MX2 / Wavelength: 1.45 Å
DetectorType: MARMOSAIC 225 mm CCD / Detector: CCD / Date: Nov 5, 2013
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.45 Å / Relative weight: 1
ReflectionResolution: 1.4→42.4 Å / Num. obs: 206127 / % possible obs: 91.9 % / Observed criterion σ(I): -3 / Redundancy: 2.18 % / Biso Wilson estimate: 19.79 Å2 / Rmerge F obs: 0.998 / Rmerge(I) obs: 0.054 / Rrim(I) all: 0.072 / Χ2: 1.378 / Net I/σ(I): 10.86 / Num. measured all: 438738
Reflection shell

Diffraction-ID: 1 / Rejects: _

Resolution (Å)Highest resolution (Å)Rmerge F obsRmerge(I) obsMean I/σ(I) obsNum. measured obsNum. possibleNum. unique obsRrim(I) all% possible all
1.4-1.490.6240.541.666854236252331470.7391.4
1.49-1.590.7790.372.476886734175320660.593.8
1.59-1.720.8760.2463.726468131713299750.33294.5
1.72-1.880.9470.1555.955810529102270920.2193.1
1.88-2.10.9830.08510.365032926451237040.11589.6
2.1-2.420.9920.05316.044267323350203140.07287
2.42-2.970.9960.03622.23598819660171670.04887.3
2.97-4.180.9990.0236.573136115257144060.02694.4
4.180.9990.01642.6518192842082560.02298.1

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Processing

Software
NameVersionClassification
XDSdata reduction
REFMAC5.8.0049refinement
PDB_EXTRACT3.14data extraction
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 4PMX

4pmx


Resolution: 1.401→42.35 Å / Cor.coef. Fo:Fc: 0.965 / Cor.coef. Fo:Fc free: 0.954 / SU B: 3.373 / SU ML: 0.057 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.077 / ESU R Free: 0.067 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: U VALUES : REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.2054 5631 5 %RANDOM
Rwork0.1745 106958 --
obs0.1761 112589 98.26 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso max: 48.24 Å2 / Biso mean: 14.922 Å2 / Biso min: 8.36 Å2
Baniso -1Baniso -2Baniso -3
1-0.09 Å20 Å2-0.01 Å2
2--0.1 Å2-0 Å2
3----0.19 Å2
Refinement stepCycle: final / Resolution: 1.401→42.35 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4840 0 38 579 5457
Biso mean--19.6 23.33 -
Num. residues----606
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0050.0195033
X-RAY DIFFRACTIONr_angle_refined_deg0.9991.9336875
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.1035606
X-RAY DIFFRACTIONr_dihedral_angle_2_deg32.5523.774257
X-RAY DIFFRACTIONr_dihedral_angle_3_deg11.60215751
X-RAY DIFFRACTIONr_dihedral_angle_4_deg15.681537
X-RAY DIFFRACTIONr_chiral_restr0.0730.2723
X-RAY DIFFRACTIONr_gen_planes_refined0.0040.0213973
X-RAY DIFFRACTIONr_mcbond_it0.8961.2952424
X-RAY DIFFRACTIONr_mcangle_it1.2221.9463027
X-RAY DIFFRACTIONr_scbond_it1.1171.4362609
X-RAY DIFFRACTIONr_rigid_bond_restr0.61335033
X-RAY DIFFRACTIONr_sphericity_free22.5715132
X-RAY DIFFRACTIONr_sphericity_bonded9.83155333
LS refinement shellResolution: 1.401→1.437 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.307 382 -
Rwork0.278 7561 -
all-7943 -
obs--94.85 %

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