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- PDB-1goq: Thermostable xylanase I from Thermoascus aurantiacus - Room tempe... -

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Basic information

Entry
Database: PDB / ID: 1goq
TitleThermostable xylanase I from Thermoascus aurantiacus - Room temperature xylobiose complex
ComponentsENDO-1,4-BETA-XYLANASE
KeywordsHYDROLASE / XYLANASE / FAMILY 10 / PLANT CELL WALL DEGRADATION
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
4beta-beta-xylobiose / beta-D-xylopyranose / Endo-1,4-beta-xylanase
Similarity search - Component
Biological speciesTHERMOASCUS AURANTIACUS (fungus)
MethodX-RAY DIFFRACTION / FOURIER SYNTHESIS / Resolution: 1.8 Å
AuthorsLo Leggio, L. / Larsen, S.
Citation
Journal: 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.
#1: Journal: Acta Crystallogr.,Sect.D / Year: 2001
Title: Anisotropic Refinement of the Structure of Thermoascus Aurantiacus Xylanase I
Authors: Teixeira, S. / Lo Leggio, L. / Pickersgill, R. / Cardin, C.
#2: Journal: Proteins / Year: 1999
Title: High Resolution Structure and Sequence of T. Aurantiacus Xylanase I: Implications for the Evolution of Thermostability in Family 10 Xylanases and Enzymes with Beta/Alpha Barrel Architecture
Authors: Lo Leggio, L. / Kalogiannis, S. / Bhat, M.K. / Pickersgill, R.W.
#3: Journal: Biochem.Soc.Trans. / Year: 1998
Title: Superfamilies: The 4/7 Superfamily of Beta/ Alpha-Barrel Glycosidases and the Right-Handed Parallel Beta-Helix Superfamily
Authors: Pickersgill, R. / Harris, G. / Lo Leggio, L. / Mayans, O. / Jenkins, J.
#4: Journal: Structural Studies of Xylanases and Endoglucanases / Year: 1997
Title: Structure Solution of Thermoascus Aurantiacus Xylanase. Structural Studies of Xylanases and Endoglucanases
Authors: Lo Leggio, L.
History
DepositionOct 23, 2001Deposition site: PDBE / Processing site: PDBE
Revision 1.0Dec 7, 2001Provider: repository / Type: Initial release
Revision 1.1Oct 22, 2014Group: Database references / Derived calculations ...Database references / Derived calculations / Non-polymer description / Other / Version format compliance
Revision 1.2May 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 / 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 / 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_seq_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _atom_site.label_entity_id / _atom_site.type_symbol / _chem_comp.name / _pdbx_entity_nonpoly.entity_id / _pdbx_entity_nonpoly.name / _pdbx_struct_assembly_gen.asym_id_list / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_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 3.2Nov 6, 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

Downloads & links

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Assembly

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


Theoretical massNumber of molelcules
Total (without water)33,7555
Polymers32,8911
Non-polymers8654
Water2,360131
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
Unit cell
Length a, b, c (Å)46.060, 59.560, 51.130
Angle α, β, γ (deg.)90.00, 110.80, 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)-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
[][b-D-Xylp]{[(4+1)][b-D-Xylp]{}}LINUCSPDB-CARE
#3: Sugar ChemComp-XYP / beta-D-xylopyranose / beta-D-xylose / D-xylose / xylose


Type: D-saccharide, beta linking / Mass: 150.130 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Formula: C5H10O5
IdentifierTypeProgram
DXylpbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
b-D-xylopyranoseCOMMON NAMEGMML 1.0
b-D-XylpIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
XylSNFG CARBOHYDRATE SYMBOLGMML 1.0
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 131 / 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 SOAKED IN 0.5 M XYLOBIOSE, pH 7.00

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Data collection

DiffractionMean temperature: 293 K
Diffraction sourceSource: ROTATING ANODE / Wavelength: 1.5418
DetectorType: R-AXIS / Detector: IMAGE PLATE
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.8→30 Å / Num. obs: 20709 / % possible obs: 86 % / Observed criterion σ(I): 0 / Redundancy: 6.4 % / Rmerge(I) obs: 0.17
Reflection shellResolution: 1.8→1.83 Å / Redundancy: 4.3 % / Rmerge(I) obs: 0.338 / % possible all: 37.9

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Processing

Software
NameVersionClassification
X-PLOR3.851refinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: 1GOK

1gok


Resolution: 1.8→5 Å / Rfactor Rfree error: 0.005 / Data cutoff high absF: 100000 / Data cutoff low absF: 0.1 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.212 1922 8.4 %RANDOM
Rwork0.167 ---
obs0.167 19293 84.3 %-
Displacement parametersBiso mean: 18.8 Å2
Baniso -1Baniso -2Baniso -3
1-1.266 Å20 Å20.186 Å2
2---0.115 Å20 Å2
3----1.151 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.22 Å0.18 Å
Luzzati d res low-5 Å
Luzzati sigma a0.13 Å0.16 Å
Refinement stepCycle: LAST / Resolution: 1.8→5 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2312 0 58 131 2501
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONx_bond_d0.0065
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg1.3
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d24
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d0.7
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it1.4941.5
X-RAY DIFFRACTIONx_mcangle_it2.1162
X-RAY DIFFRACTIONx_scbond_it2.6472
X-RAY DIFFRACTIONx_scangle_it3.7282.5
LS refinement shellResolution: 1.8→1.91 Å / Rfactor Rfree error: 0.02 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.256 164 9.6 %
Rwork0.237 1543 -
obs--44.7 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMTOPHCSDX.PRO
X-RAY DIFFRACTION2PARAM19.SOLTOPH19.SOL

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