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- PDB-5n0c: Crystal structure of the tetanus neurotoxin in complex with GM1a -

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Entry
Database: PDB / ID: 5n0c
TitleCrystal structure of the tetanus neurotoxin in complex with GM1a
ComponentsTetanus toxin
KeywordsTOXIN / Tetanus neurotoxin / tetanospasmin / tentoxilysin / clostridial toxin
Function / homology
Function and homology information


tentoxilysin / symbiont-mediated perturbation of host neurotransmitter secretion / Toxicity of tetanus toxin (tetX) / protein transmembrane transporter activity / clathrin-coated endocytic vesicle membrane / metalloendopeptidase activity / endocytic vesicle membrane / toxin activity / proteolysis / zinc ion binding ...tentoxilysin / symbiont-mediated perturbation of host neurotransmitter secretion / Toxicity of tetanus toxin (tetX) / protein transmembrane transporter activity / clathrin-coated endocytic vesicle membrane / metalloendopeptidase activity / endocytic vesicle membrane / toxin activity / proteolysis / zinc ion binding / extracellular region / plasma membrane / cytosol
Similarity search - Function
Clostridium neurotoxin, translocation / Clostridium neurotoxin, Translocation domain / Clostridium neurotoxin, translocation domain / Clostridial neurotoxin zinc protease / Botulinum/Tetanus toxin, catalytic chain / Clostridium neurotoxin, receptor-binding C-terminal / Clostridium neurotoxin, receptor binding N-terminal / Clostridium neurotoxin, C-terminal receptor binding / Clostridium neurotoxin, N-terminal receptor binding / Kunitz inhibitor STI-like superfamily ...Clostridium neurotoxin, translocation / Clostridium neurotoxin, Translocation domain / Clostridium neurotoxin, translocation domain / Clostridial neurotoxin zinc protease / Botulinum/Tetanus toxin, catalytic chain / Clostridium neurotoxin, receptor-binding C-terminal / Clostridium neurotoxin, receptor binding N-terminal / Clostridium neurotoxin, C-terminal receptor binding / Clostridium neurotoxin, N-terminal receptor binding / Kunitz inhibitor STI-like superfamily / Neutral zinc metallopeptidases, zinc-binding region signature. / Concanavalin A-like lectin/glucanase domain superfamily
Similarity search - Domain/homology
DI(HYDROXYETHYL)ETHER / Tetanus toxin
Similarity search - Component
Biological speciesClostridium tetani (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.6 Å
AuthorsMasuyer, G. / Conrad, J. / Stenmark, P.
Funding support Sweden, 1items
OrganizationGrant numberCountry
Swedish Research Council2014-5667 Sweden
CitationJournal: EMBO Rep / Year: 2017
Title: The structure of the tetanus toxin reveals pH-mediated domain dynamics.
Authors: Geoffrey Masuyer / Julian Conrad / Pål Stenmark /
Abstract: The tetanus neurotoxin (TeNT) is a highly potent toxin produced by that inhibits neurotransmission of inhibitory interneurons, causing spastic paralysis in the tetanus disease. TeNT differs from the ...The tetanus neurotoxin (TeNT) is a highly potent toxin produced by that inhibits neurotransmission of inhibitory interneurons, causing spastic paralysis in the tetanus disease. TeNT differs from the other clostridial neurotoxins by its unique ability to target the central nervous system by retrograde axonal transport. The crystal structure of the tetanus toxin reveals a "closed" domain arrangement stabilised by two disulphide bridges, and the molecular details of the toxin's interaction with its polysaccharide receptor. An integrative analysis combining X-ray crystallography, solution scattering and single particle electron cryo-microscopy reveals pH-mediated domain rearrangements that may give TeNT the ability to adapt to the multiple environments encountered during intoxication, and facilitate binding to distinct receptors.
History
DepositionFeb 2, 2017Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jun 21, 2017Provider: repository / Type: Initial release
Revision 1.1Jul 5, 2017Group: Database references / Category: citation
Item: _citation.journal_abbrev / _citation.journal_id_CSD ..._citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Aug 9, 2017Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 2.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Derived calculations / Refinement description / 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_struct_conn_angle / 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 / _chem_comp.name / _chem_comp.type / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _refine_hist.d_res_low / _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
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Jan 17, 2024Group: 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 2.2Oct 9, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Tetanus toxin
B: Tetanus toxin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)308,0547
Polymers305,8202
Non-polymers2,2355
Water8,143452
1
A: Tetanus toxin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)154,0804
Polymers152,9101
Non-polymers1,1703
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
B: Tetanus toxin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)153,9743
Polymers152,9101
Non-polymers1,0642
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)92.230, 137.450, 152.400
Angle α, β, γ (deg.)90.00, 90.12, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein Tetanus toxin / Tentoxylysin


Mass: 152909.828 Da / Num. of mol.: 2 / Mutation: R372A, Y375F
Source method: isolated from a genetically manipulated source
Details: Catalytically inactive variant of the tetanus neurotoxin. Missing residues could not be modelled due to lack of electron density.
Source: (gene. exp.) Clostridium tetani (bacteria) / Gene: tetX, CTC_p60 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P04958, tentoxilysin
#2: Polysaccharide beta-D-galactopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-galactopyranose-(1-4)-[N-acetyl-alpha- ...beta-D-galactopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-galactopyranose-(1-4)-[N-acetyl-alpha-neuraminic acid-(2-3)]beta-D-galactopyranose-(1-4)-beta-D-glucopyranose


Type: oligosaccharide / Mass: 998.885 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGalpb1-3DGalpNAcb1-4[DNeup5Aca2-3]DGalpb1-4DGlcpb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/4,5,4/[a2122h-1b_1-5][a2112h-1b_1-5][Aad21122h-2a_2-6_5*NCC/3=O][a2112h-1b_1-5_2*NCC/3=O]/1-2-3-4-2/a4-b1_b3-c2_b4-d1_d3-e1WURCSPDB2Glycan 1.1.0
[][b-D-Glcp]{[(4+1)][b-D-Galp]{[(3+2)][a-D-Neup5Ac]{}[(4+1)][b-D-GalpNAc]{[(3+1)][b-D-Galp]{}}}}LINUCSPDB-CARE
#3: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Formula: Zn
#4: Chemical ChemComp-PEG / DI(HYDROXYETHYL)ETHER


Mass: 106.120 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Formula: C4H10O3
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 452 / 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: 3.2 Å3/Da / Density % sol: 61.8 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 6
Details: 20% v/v polyethylene glycol 6000, 0.1M MES pH 6.0, 0.2M sodium chloride

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Diamond / Beamline: I04-1 / Wavelength: 0.9282 Å
DetectorType: DECTRIS PILATUS 6M-F / Detector: PIXEL / Date: Jul 1, 2016
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9282 Å / Relative weight: 1
ReflectionResolution: 2.6→68.5 Å / Num. obs: 116521 / % possible obs: 99.8 % / Redundancy: 3.5 % / CC1/2: 0.993 / Rmerge(I) obs: 0.126 / Rpim(I) all: 0.116 / Net I/σ(I): 7.2
Reflection shellResolution: 2.6→2.64 Å / Redundancy: 3.5 % / Rmerge(I) obs: 0.729 / Num. unique obs: 5781 / CC1/2: 0.281 / Rpim(I) all: 0.668 / % possible all: 99.7

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Processing

Software
NameVersionClassification
REFMAC5.8.0158refinement
iMOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1Z7H, 1FV2

1z7h

1fv2


Resolution: 2.6→68.5 Å / Cor.coef. Fo:Fc: 0.928 / Cor.coef. Fo:Fc free: 0.907 / SU B: 14.178 / SU ML: 0.271 / Cross valid method: THROUGHOUT / ESU R: 0.541 / ESU R Free: 0.295 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.25339 5742 4.9 %RANDOM
Rwork0.22063 ---
obs0.22222 110753 99.76 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 48.315 Å2
Baniso -1Baniso -2Baniso -3
1--0.38 Å20 Å2-2.13 Å2
2--0.13 Å20 Å2
3---0.26 Å2
Refinement stepCycle: 1 / Resolution: 2.6→68.5 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms20842 0 145 452 21439
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0080.0221440
X-RAY DIFFRACTIONr_bond_other_d0.0010.0219634
X-RAY DIFFRACTIONr_angle_refined_deg1.1181.96829064
X-RAY DIFFRACTIONr_angle_other_deg0.856345858
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.89152573
X-RAY DIFFRACTIONr_dihedral_angle_2_deg35.78225.5081024
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.167153830
X-RAY DIFFRACTIONr_dihedral_angle_4_deg10.5961570
X-RAY DIFFRACTIONr_chiral_restr0.0650.23254
X-RAY DIFFRACTIONr_gen_planes_refined0.0040.02123475
X-RAY DIFFRACTIONr_gen_planes_other0.0010.024147
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it1.5924.95710310
X-RAY DIFFRACTIONr_mcbond_other1.5924.95710309
X-RAY DIFFRACTIONr_mcangle_it2.8917.4312877
X-RAY DIFFRACTIONr_mcangle_other2.8917.4312878
X-RAY DIFFRACTIONr_scbond_it1.1464.98211130
X-RAY DIFFRACTIONr_scbond_other1.1454.98211130
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other2.1347.42716188
X-RAY DIFFRACTIONr_long_range_B_refined4.51355.68722768
X-RAY DIFFRACTIONr_long_range_B_other4.50855.71222728
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.6→2.668 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.396 406 -
Rwork0.37 8186 -
obs--99.68 %

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