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- PDB-1gor: THERMOSTABLE XYLANASE I FROM THERMOASCUS AURANTIACUS - XYLOBIOSE ... -

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Basic information

Entry
Database: PDB / ID: 1gor
TitleTHERMOSTABLE XYLANASE I FROM THERMOASCUS AURANTIACUS - XYLOBIOSE COMPLEX AT 100 K
ComponentsENDO-1,4-BETA-XYLANASE
KeywordsHYDROLASE / XYLANASE / FAMILY 10 / PLANT CELL WALL DEGRADATION / THERMOSTABLE
Function / homology
Function and homology information


endo-1,4-beta-xylanase activity / endo-1,4-beta-xylanase / xylan catabolic process
Similarity search - Function
Glycosyl hydrolases family 10, active site / Glycosyl hydrolases family 10 (GH10) active site. / Glycosyl hydrolases family 10 (GH10) domain profile. / Glycoside hydrolase family 10 / Glycoside hydrolase family 10 domain / Glycosyl hydrolase family 10 / Glycosyl hydrolase family 10 / Glycosidases / Glycoside hydrolase superfamily / TIM Barrel ...Glycosyl hydrolases family 10, active site / Glycosyl hydrolases family 10 (GH10) active site. / Glycosyl hydrolases family 10 (GH10) domain profile. / Glycoside hydrolase family 10 / 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
Endo-1,4-beta-xylanase
Similarity search - Component
Biological speciesTHERMOASCUS AURANTIACUS (fungus)
MethodX-RAY DIFFRACTION / SYNCHROTRON / FOURIER SYNTHESIS / Resolution: 1.7 Å
AuthorsLo Leggio, L. / Larsen, S.
CitationJournal: FEBS Lett. / Year: 2001
Title: Substrate Specificity and Subsite Mobility in T. Aurantiacus Xylanase 10A
Authors: Lo Leggio, L. / Kalogiannis, S. / Eckert, K. / Teixeira, S.C.M. / Bhat, M.K. / Andrei, C. / Pickersgill, R.W. / Larsen, S.
History
DepositionOct 23, 2001Deposition site: PDBE / Processing site: PDBE
Revision 1.0Dec 7, 2001Provider: repository / Type: Initial release
Revision 1.1Jun 2, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3May 8, 2019Group: Data collection / Derived calculations ...Data collection / Derived calculations / Experimental preparation / Other
Category: database_PDB_rev / database_PDB_rev_record ...database_PDB_rev / database_PDB_rev_record / exptl_crystal_grow / pdbx_database_proc / pdbx_database_status / struct_conn
Item: _exptl_crystal_grow.method / _pdbx_database_status.recvd_author_approval / _struct_conn.pdbx_leaving_atom_flag
Revision 2.0Mar 11, 2020Group: Data collection / Other / Polymer sequence / Category: chem_comp / entity_poly / pdbx_database_status
Item: _chem_comp.type / _entity_poly.pdbx_seq_one_letter_code_can / _pdbx_database_status.status_code_sf
Revision 3.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / 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 / struct_asym / struct_conn / 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 / _chem_comp.name / _pdbx_struct_assembly_gen.asym_id_list / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_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
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 3.1Dec 13, 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
Revision 3.2Oct 23, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification
Remark 700 SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW ... SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 10-STRANDED BARREL THIS IS REPRESENTED BY A 11-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: ENDO-1,4-BETA-XYLANASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)33,1732
Polymers32,8911
Non-polymers2821
Water4,450247
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
Unit cell
Length a, b, c (Å)45.645, 59.252, 50.641
Angle α, β, γ (deg.)90.00, 111.34, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein ENDO-1,4-BETA-XYLANASE / XYLANASE / 1 / 4-BETA-D-XYLAN XYLANOHYDROLASE


Mass: 32890.711 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) THERMOASCUS AURANTIACUS (fungus) / References: UniProt: P23360, endo-1,4-beta-xylanase
#2: Polysaccharide beta-D-xylopyranose-(1-4)-alpha-D-xylopyranose


Type: oligosaccharide / Mass: 282.245 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DXylpb1-4DXylpa1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/2,2,1/[a212h-1a_1-5][a212h-1b_1-5]/1-2/a4-b1WURCSPDB2Glycan 1.1.0
[][a-D-Xylp]{[(4+1)][b-D-Xylp]{}}LINUCSPDB-CARE
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 247 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY
Sequence detailsRESIDUES 1-26 REFER TO THE SIGNAL PEPTIDE IT IS NOT KNOWN IF GLN 303 IS PRESENT IN THE CRYSTAL

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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: 2.02 Å3/Da / Density % sol: 32.9 % / Description: THE PH OF CRYSTALLIZATION WAS NOT BUFFERED
Crystal growMethod: vapor diffusion, hanging drop / pH: 7
Details: HANGING DROPS CONTAINING 1:1 RATIO OF 20-30 MG/ML PROTEIN SOLUTION AND RESERVOIR SOLUTION (12 % TO 25 % PEG 6,000). THE CRYSTAL WAS CRYOCOOLED WITH GLYCEROL AND 0.5 M XYLOBIOSE, pH 7.00

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ELETTRA / Beamline: 5.2R / Wavelength: 1
DetectorType: MARRESEARCH / Detector: CCD
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.7→16 Å / Num. obs: 26202 / % possible obs: 95 % / Redundancy: 3.2 % / Rmerge(I) obs: 0.063
Reflection shellResolution: 1.7→1.76 Å / Redundancy: 2 % / Rmerge(I) obs: 0.343 / % possible all: 75.1

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Processing

Software
NameVersionClassification
CNS0.9refinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: 1GOK

1gok


Resolution: 1.7→16 Å / Rfactor Rfree error: 0.004 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: MLF
RfactorNum. reflection% reflectionSelection details
Rfree0.2 2454 8.9 %RANDOM
Rwork0.174 ---
obs0.174 24976 90.1 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 66.6 Å2 / ksol: 0.436 e/Å3
Displacement parametersBiso mean: 19.5 Å2
Baniso -1Baniso -2Baniso -3
1--1.885 Å20 Å2-3.22 Å2
2---0.606 Å20 Å2
3---2.491 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.21 Å0.18 Å
Luzzati d res low-5 Å
Luzzati sigma a0.17 Å0.19 Å
Refinement stepCycle: LAST / Resolution: 1.7→16 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2312 0 19 247 2578
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.005
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.39
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d21.96
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.82
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it0.6661.5
X-RAY DIFFRACTIONc_mcangle_it0.9922
X-RAY DIFFRACTIONc_scbond_it1.1952
X-RAY DIFFRACTIONc_scangle_it1.7192.5
Xplor fileSerial no: 1 / Param file: PROTEIN_REP.PARAM / Topol file: PROTEIN.TOP

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