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- PDB-5y2b: Crystal structure of Ostrinia furnacalis Group II chitinase catal... -

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Basic information

Entry
Database: PDB / ID: 5y2b
TitleCrystal structure of Ostrinia furnacalis Group II chitinase catalytic domain 1 in complex with HEPTA-N-ACETYLCHITOOCTAOSE (NAG)7
Componentsinsect group II chitinase
KeywordsHYDROLASE / substrate complex
Function / homology
Function and homology information


endochitinase activity / chitinase / chitin catabolic process / chitin binding / carbohydrate metabolic process / extracellular region
Similarity search - Function
Chitin-binding domain type 2 / Chitin binding domain / Chitin binding Peritrophin-A domain / Chitin-binding type-2 domain profile. / Chitin binding domain superfamily / Glycosyl hydrolases family 18 (GH18) active site / Glycosyl hydrolases family 18 (GH18) active site signature. / : / Chitinase insertion domain superfamily / Chitinase II ...Chitin-binding domain type 2 / Chitin binding domain / Chitin binding Peritrophin-A domain / Chitin-binding type-2 domain profile. / Chitin binding domain superfamily / Glycosyl hydrolases family 18 (GH18) active site / Glycosyl hydrolases family 18 (GH18) active site signature. / : / Chitinase insertion domain superfamily / Chitinase II / Glyco_18 / Glycosyl hydrolases family 18 / Glycosyl hydrolases family 18 (GH18) domain profile. / Glycoside hydrolase family 18, catalytic domain / Glycoside hydrolase superfamily
Similarity search - Domain/homology
Biological speciesOstrinia furnacalis (Asian corn borer)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.2 Å
AuthorsChen, W. / Qu, M.B. / Zhou, Y. / Yang, Q.
CitationJournal: J. Biol. Chem. / Year: 2018
Title: Structural analysis of group II chitinase (ChtII) catalysis completes the puzzle of chitin hydrolysis in insects
Authors: Chen, W. / Qu, M. / Zhou, Y. / Yang, Q.
History
DepositionJul 24, 2017Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jan 17, 2018Provider: repository / Type: Initial release
Revision 1.1Jan 24, 2018Group: Database references / Category: citation / citation_author
Item: _citation.journal_abbrev / _citation.pdbx_database_id_PubMed / _citation_author.name
Revision 1.2Mar 7, 2018Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 2.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / 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 / pdbx_validate_close_contact / 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.occupancy / _atom_site.type_symbol / _chem_comp.name / _chem_comp.type / _pdbx_entity_nonpoly.entity_id / _pdbx_entity_nonpoly.name / _pdbx_struct_assembly_gen.asym_id_list / _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.pdbx_dist_value / _struct_conn.pdbx_role / _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 2.1Nov 22, 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: insect group II chitinase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)44,6013
Polymers42,9401
Non-polymers1,6622
Water3,981221
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1640 Å2
ΔGint15 kcal/mol
Surface area14120 Å2
MethodPISA
Unit cell
Length a, b, c (Å)97.775, 97.775, 92.231
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number92
Space group name H-MP41212

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Components

#1: Protein insect group II chitinase


Mass: 42939.605 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Ostrinia furnacalis (Asian corn borer) / Production host: Komagataella pastoris GS115 (fungus) / References: UniProt: A0A221ZS22*PLUS
#2: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 1440.365 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-4DGlcpNAcb1-4DGlcpNAcb1-4DGlcpNAcb1-4DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,7,6/[a2122h-1b_1-5_2*NCC/3=O]/1-1-1-1-1-1-1/a4-b1_b4-c1_c4-d1_d4-e1_e4-f1_f4-g1WURCSPDB2Glycan 1.1.0
[][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}}}}}LINUCSPDB-CARE
#3: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6 / Feature type: SUBJECT OF INVESTIGATION
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 221 / 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: 2.57 Å3/Da / Density % sol: 52.08 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / Details: 0.2M sodium chloride, 0.1M Tris, 25% PEG3350

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SSRF / Beamline: BL18U1 / Wavelength: 0.97778 Å
DetectorType: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Dec 19, 2016
RadiationProtocol: MAD / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97778 Å / Relative weight: 1
ReflectionResolution: 2.2→50 Å / Num. obs: 23347 / % possible obs: 100 % / Redundancy: 11.2 % / Rmerge(I) obs: 0.201 / Rpim(I) all: 0.062 / Rrim(I) all: 0.211 / Χ2: 0.977 / Net I/σ(I): 4.4
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsNum. unique obsCC1/2Rpim(I) allRrim(I) allΧ2% possible all
2.2-2.248.40.96720730.7340.3531.0320.918100
2.24-2.288.50.8650.8210.3120.9210.899100
2.28-2.329.20.8820.7720.3060.9360.969100
2.32-2.3710.20.8150.8480.2650.8580.943100
2.37-2.4210.60.7690.860.2460.8080.959100
2.42-2.48110.7080.8950.2220.7430.979100
2.48-2.5411.20.6810.8960.2120.7140.958100
2.54-2.6111.30.6380.8920.1980.6691.00399.9
2.61-2.6911.40.5980.9420.1840.6260.995100
2.69-2.7711.10.5130.9430.1610.5380.987100
2.77-2.8711.60.4620.9670.1410.4831.022100
2.87-2.9912.60.3990.9730.1170.4171.02100
2.99-3.1212.60.3320.9790.0980.3470.991100
3.12-3.2912.50.260.9850.0760.2711.027100
3.29-3.4912.20.220.9890.0660.231.02100
3.49-3.7611.40.1730.9840.0530.1811.005100
3.76-4.1412.80.1520.990.0440.1581.006100
4.14-4.7412.50.130.9910.0380.1360.999100
4.74-5.9711.40.1150.9920.0350.120.842100
5.97-5011.10.110.9980.0360.1160.94199.8

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Processing

Software
NameVersionClassification
HKL-2000data scaling
PHENIX1.11_2567refinement
PDB_EXTRACT3.22data extraction
Cootmodel building
PHENIXphasing
HKL-3000data reduction
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 5Y29

5y29


Resolution: 2.2→50 Å / Cross valid method: NONE
RfactorNum. reflection% reflection
Rfree0.2022 2005 -
Rwork0.1531 --
obs-23347 100 %
Displacement parametersBiso max: 93.36 Å2 / Biso mean: 29.5159 Å2 / Biso min: 13.53 Å2
Refinement stepCycle: LAST / Resolution: 2.2→50 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3023 0 113 222 3358
LS refinement shellResolution: 2.1993→2.2543 Å
RfactorNum. reflection% reflection
Rfree0.2764 133 -
Rwork0.1938 1296 -
obs--88 %

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