1epw

CRYSTAL STRUCTURE OF CLOSTRIDIUM NEUROTOXIN TYPE B

Method: X-RAY DIFFRACTION D_max: 141.9 Å Quality: GOOD

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1. Protein Identity and Related Structures Protein Identity & Related Structures

BOTULINUM NEUROTOXIN TYPE B

OrganismNot specified

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein monomer Monomer Protein × 1 PDB declaration: monomeric（1） Consistent with protein copy count	Chain A； UniProt 1–1290	Not recorded	ZN ZINC ION × 1 SO4 SULFATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, SITTING DROP；pH 6；291 K；PEG 4000, MES, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 291K	Resolution 1.90 Å R-free 0.233

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 1EPW	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1F31 CRYSTAL STRUCTURE OF CLOSTRIDIUM BOTULINUM NEUROTOXIN B COMPLEXED WITH A TRISACCHARIDE Deposited 2000-05-31	Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1290（1290 aa）	Not recorded	ZN ZINC ION × 1 SO4 SULFATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；291 K；PEG 4000, MES, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 291.0K	Resolution 2.60 Å R-free 0.270
1F82 BOTULINUM NEUROTOXIN TYPE B CATALYTIC DOMAIN Deposited 2000-06-28	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–424（424 aa） Fragment：CATALYTIC DOMAIN	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.3；294 K；Hepes, Polyethylene glycol MW 4000, pH 7.3, VAPOR DIFFUSION, HANGING DROP, temperature 294K	Resolution 2.20 Å R-free 0.276
1G9A CRYSTAL STRUCTURE OF CLOSTRIDIUM BOTULINUM NEUROTOXIN B COMPLEXED WITH AN INHIBITOR (EXPERIMENT 3) Deposited 2000-11-22	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1290（1290 aa）	Not recorded	ZN ZINC ION × 2 BAB BIS(5-AMIDINO-BENZIMIDAZOLYL)METHANE × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；291 K；PEG 6000, MES, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 291.0K	Resolution 2.10 Å R-free 0.248
1G9B CRYSTAL STRUCTURE OF CLOSTRIDIUM BOTULINUM NEUROTOXIN B COMPLEXED WITH AN INHIBITOR (EXPERIMENT 1) Deposited 2000-11-22	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1290（1290 aa）	Not recorded	ZN ZINC ION × 2 BAB BIS(5-AMIDINO-BENZIMIDAZOLYL)METHANE × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；291 K；PEG 6000, MES, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 291.0K	Resolution 2.00 Å R-free 0.243
1G9C CRYSTAL STRUCTURE OF CLOSTRIDIUM BOTULINUM NEUROTOXIN B COMPLEXED WITH AN INHIBITOR (EXPERIMENT 4) Deposited 2000-11-22	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1290（1290 aa）	Not recorded	ZN ZINC ION × 2 BAB BIS(5-AMIDINO-BENZIMIDAZOLYL)METHANE × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；291 K；PEG 6000. MES, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 291.0K	Resolution 2.35 Å R-free 0.247
1G9D CRYSTAL STRUCTURE OF CLOSTRIDIUM BOTULINUM NEUROTOXIN B COMPLEXED WITH AN INHIBITOR (EXPERIMENT 2) Deposited 2000-11-22	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1290（1290 aa）	Not recorded	ZN ZINC ION × 2 BAB BIS(5-AMIDINO-BENZIMIDAZOLYL)METHANE × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；291 K；PEG 6000. MES, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 291.0K	Resolution 2.20 Å R-free 0.283
1I1E CRYSTAL STRUCTURE OF CLOSTRIDIUM BOTULINUM NEUROTOXIN B COMPLEXED WITH DOXORUBICIN Deposited 2001-02-01	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1290（1290 aa）	Not recorded	DM2 DOXORUBICIN × 1 ZN ZINC ION × 1 SO4 SULFATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；291 K；PEG 4000, MES, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 291.0K	Resolution 2.50 Å R-free 0.276
1S0B Crystal structure of botulinum neurotoxin type B at pH 4.0 Deposited 2003-12-30	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1290（1290 aa）	Not recorded	CA CALCIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 4；298 K；PEG 4000, MES, pH 4.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K	Resolution 2.00 Å R-free 0.235
1S0C Crystal structure of botulinum neurotoxin type B at pH 5.0 Deposited 2003-12-30	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1290（1290 aa）	Not recorded	ZN ZINC ION × 1 CA CALCIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；298 K；PEG 4000, MES, pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K	Resolution 2.20 Å R-free 0.240
1S0D Crystal structure of botulinum neurotoxin type B at pH 5.5 Deposited 2003-12-30	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1290（1290 aa）	Not recorded	ZN ZINC ION × 1 CA CALCIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.5；298 K；PEG 4000, MES, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K	Resolution 2.20 Å R-free 0.273
1S0E Crystal structure of botulinum neurotoxin type B at pH 6.0 Deposited 2003-12-30	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1290（1290 aa）	Not recorded	ZN ZINC ION × 1 CA CALCIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions pH 6；298 K；PEG 4000, MES, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K, pH 6.00	Resolution 1.90 Å R-free 0.232
1S0F Crystal structure of botulinum neurotoxin type B at pH 7.0 Deposited 2003-12-30	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1290（1290 aa）	Not recorded	ZN ZINC ION × 1 CA CALCIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions pH 7；298 K；PEG 4000, MES, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K, pH 7.00	Resolution 2.30 Å R-free 0.288
1S0G Crystal structure of botulinum neurotoxin type B apo form Deposited 2003-12-30	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1290（1290 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；PEG 4000, MES, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K	Resolution 2.60 Å R-free 0.265
1Z0H N-terminal helix reorients in recombinant C-fragment of Clostridium botulinum type B Deposited 2005-03-01	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 853–1290（438 aa） Fragment：sequence database residues 853-1290	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；293 K；Ammonium Formate, PEG6000, Hepes, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.00 Å R-free 0.282
1Z0H N-terminal helix reorients in recombinant C-fragment of Clostridium botulinum type B Deposited 2005-03-01	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 853–1290（438 aa） Fragment：sequence database residues 853-1290	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；293 K；Ammonium Formate, PEG6000, Hepes, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.00 Å R-free 0.282
2ETF Crystal structure of full length botulinum neurotoxin (Type B) light chain Deposited 2005-10-27	Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 0–440（441 aa） Fragment：Catalytic Domain (residues 0-440)	Non-standard monomer：Yes (specific site not provided by mmCIF)	ZN ZINC ION × 1 SO4 SULFATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.2；Ammonium sulphate, Sodium Cacodylate, pH 6.2, VAPOR DIFFUSION, SITTING DROP	Resolution 2.29 Å R-free 0.264
2ETF Crystal structure of full length botulinum neurotoxin (Type B) light chain Deposited 2005-10-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 0–440（441 aa） Fragment：Catalytic Domain (residues 0-440)	Non-standard monomer：Yes (specific site not provided by mmCIF)	ZN ZINC ION × 1 SO4 SULFATE ION × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.2；Ammonium sulphate, Sodium Cacodylate, pH 6.2, VAPOR DIFFUSION, SITTING DROP	Resolution 2.29 Å R-free 0.264
2NM1 Structure of BoNT/B in complex with its protein receptor Deposited 2006-10-20	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 857–1290（434 aa） Fragment：receptor binding domain	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions EVAPORATION；pH 7；293 K；13% PEG 6000, 0.1M Hepes, pH 7.0, EVAPORATION, temperature 293K	Resolution 2.15 Å R-free 0.246
2NP0 Crystal structure of the Botulinum neurotoxin type B complexed with synaptotagamin-II ectodomain Deposited 2006-10-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–1290（1290 aa）	Not recorded	ZN ZINC ION × 1 CA CALCIUM ION × 3 CL CHLORIDE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.6；297 K；0.4 M (NH4)2SO4, 0.9 M Li2SO4, and 0.1 M sodium citrate at pH 5.6, VAPOR DIFFUSION, SITTING DROP, temperature 297K	Resolution 2.62 Å R-free 0.227
2NP0 Crystal structure of the Botulinum neurotoxin type B complexed with synaptotagamin-II ectodomain Deposited 2006-10-26	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–1290（1290 aa）	Not recorded	ZN ZINC ION × 2 CA CALCIUM ION × 6 CL CHLORIDE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.6；297 K；0.4 M (NH4)2SO4, 0.9 M Li2SO4, and 0.1 M sodium citrate at pH 5.6, VAPOR DIFFUSION, SITTING DROP, temperature 297K	Resolution 2.62 Å R-free 0.227
2XHL Structure of a functional derivative of Clostridium botulinum neurotoxin type B Deposited 2010-06-18	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–437（437 aa） Fragment：RESIDUES 1-437 Chain B 446–858（413 aa） Fragment：RESIDUES 446-858	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions pH 7.2；15% PEG3350, 0.1M BIS-TRIS-PROPANE PH 6.5, 0.2M SODIUM SULPHATE	Resolution 2.80 Å R-free 0.282
3ZUQ Crystal structure of an engineered botulinum neurotoxin type B - derivative, LC-B-GS-Hn-B Deposited 2011-07-19	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–437（437 aa） Fragment：CATALYTIC DOMAIN, RESIDUES 1-437, TRANSLOCATION DOMAIN, RESIDUES 446-858 Chain A 446–858（413 aa） Fragment：CATALYTIC DOMAIN, RESIDUES 1-437, TRANSLOCATION DOMAIN, RESIDUES 446-858	Not recorded	ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions pH 8；0.1M TRIS ACETATE PH8.0, 0.2M MGCL, 20% PEG8000	Resolution 2.70 Å R-free 0.281
4KBB Structure of Botulinum neurotoxin B binding domain in complex with both synaptotagmin II and GD1a Deposited 2013-04-23	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 857–1291（435 aa） Fragment：UNP residues 857-1291	Not recorded	CL CHLORIDE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.1；292 K；0.2 M MgCl2, 0.1 M Hepes pH 7.0 -7.2 and 20-24% PEG 6000, VAPOR DIFFUSION, SITTING DROP, temperature 292K	Resolution 2.30 Å R-free 0.189
4KBB Structure of Botulinum neurotoxin B binding domain in complex with both synaptotagmin II and GD1a Deposited 2013-04-23	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Other combination Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 857–1291（435 aa） Fragment：UNP residues 857-1291	Not recorded	CL CHLORIDE ION × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.1；292 K；0.2 M MgCl2, 0.1 M Hepes pH 7.0 -7.2 and 20-24% PEG 6000, VAPOR DIFFUSION, SITTING DROP, temperature 292K	Resolution 2.30 Å R-free 0.189
5VID Receptor binding domain of BoNT/B in complex with mini-protein binder Bot.0671.2 Deposited 2017-04-15	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain D 859–1291（433 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291 K；100 mM Tris, pH 8.0, 25 % PEG 400	Resolution 2.75 Å R-free 0.232
5VID Receptor binding domain of BoNT/B in complex with mini-protein binder Bot.0671.2 Deposited 2017-04-15	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 859–1291（433 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291 K；100 mM Tris, pH 8.0, 25 % PEG 400	Resolution 2.75 Å R-free 0.232
5VID Receptor binding domain of BoNT/B in complex with mini-protein binder Bot.0671.2 Deposited 2017-04-15	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain C 859–1291（433 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291 K；100 mM Tris, pH 8.0, 25 % PEG 400	Resolution 2.75 Å R-free 0.232
5VID Receptor binding domain of BoNT/B in complex with mini-protein binder Bot.0671.2 Deposited 2017-04-15	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 859–1291（433 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291 K；100 mM Tris, pH 8.0, 25 % PEG 400	Resolution 2.75 Å R-free 0.232
5VID Receptor binding domain of BoNT/B in complex with mini-protein binder Bot.0671.2 Deposited 2017-04-15	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 5 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain E 859–1291（433 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291 K；100 mM Tris, pH 8.0, 25 % PEG 400	Resolution 2.75 Å R-free 0.232
5VMR Receptor binding domain of BoNT/B in complex with mini-protein binder Bot.2110.4 Deposited 2017-04-28	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 859–1291（433 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.1 M Magnesium acetate, 0.1 M Sodium acetate pH 5.0, 10 % PEG8000	Resolution 1.95 Å R-free 0.206
5VMR Receptor binding domain of BoNT/B in complex with mini-protein binder Bot.2110.4 Deposited 2017-04-28	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 859–1291（433 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.1 M Magnesium acetate, 0.1 M Sodium acetate pH 5.0, 10 % PEG8000	Resolution 1.95 Å R-free 0.206
6G5F Crystal structure of an engineered Botulinum Neurotoxin type B mutant E1191M/S1199Y in complex with human synaptotagmin 1 Deposited 2018-03-29	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–1291（1291 aa） Chain B 1–1291（1291 aa）	Mutation：E231Q, H234Y Mutation：E231Q, H234Y	GOL GLYCEROL × 3 MLI MALONATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；294 K；1.1 M sodium malonate dibasic monohydrate, HEPES pH 7.0, 0.5% v/v Jeffamine ED-2003	Resolution 2.50 Å R-free 0.232
6G5G Crystal structure of an engineered Botulinum Neurotoxin type B mutant E1191M/S1199Y in complex with human synaptotagmin 2 Deposited 2018-03-29	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–1291（1291 aa） Chain B 1–1291（1291 aa）	Mutation：E231Q, H234Y Mutation：E231Q, H234Y	MG MAGNESIUM ION × 1 EDO 1,2-ETHANEDIOL × 1 PEG DI(HYDROXYETHYL)ETHER × 2 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1 ACT ACETATE ION × 1 GOL GLYCEROL × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；294 K；0.2 M magnesium chloride, Tris pH 7.0, 10% w/v PEG 8000	Resolution 2.00 Å R-free 0.223
6G5K Crystal structure of the binding domain of Botulinum Neurotoxin type B in complex with human synaptotagmin 1 Deposited 2018-03-29	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 857–1291（435 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；294 K；0.1 M Amino acids 0.1 M Buffer System 2 7.5 50 % v/v Precipitant Mix 1	Resolution 2.00 Å R-free 0.235
6G5K Crystal structure of the binding domain of Botulinum Neurotoxin type B in complex with human synaptotagmin 1 Deposited 2018-03-29	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 857–1291（435 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；294 K；0.1 M Amino acids 0.1 M Buffer System 2 7.5 50 % v/v Precipitant Mix 1	Resolution 2.00 Å R-free 0.235
6QNS Crystal structure of the binding domain of Botulinum Neurotoxin type B mutant I1248W/V1249W in complex with human synaptotagmin 1 and GD1a receptors Deposited 2019-02-12	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 857–1291（435 aa）	Mutation：I1248W, V1249W	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；294.15 K；20% v/v PEG6000, 0.1 M MES pH 6.0, 0.2 M sodium chloride	Resolution 2.40 Å R-free 0.229
6UC6 Crystal structure of BoNT/B receptor-binding domain in complex with VHH JLI-H11 Deposited 2019-09-15	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 859–1291（433 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；291 K；0.1 M KCl, 15 % PEG 5000 MME, 0.1 M MES	Resolution 2.32 Å R-free 0.222
6UC6 Crystal structure of BoNT/B receptor-binding domain in complex with VHH JLI-H11 Deposited 2019-09-15	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 859–1291（433 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；291 K；0.1 M KCl, 15 % PEG 5000 MME, 0.1 M MES	Resolution 2.32 Å R-free 0.222
6UFT Crystal structure of BoNT/B receptor-binding domain in complex with VHH JLK-G12 Deposited 2019-09-25	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 859–1291（433 aa）	Not recorded	SO4 SULFATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.2 M ammonium sulfate, 14 % PEG 8000, 0.1 M MES pH 6.0	Resolution 2.90 Å R-free 0.258
6UHT Crystal structure of BoNT/B receptor-binding domain in complex with VHH JLI-G10 Deposited 2019-09-28	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 859–1291（433 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；15 % PEG 20000 and 0.1 M MES pH 6.5	Resolution 2.20 Å R-free 0.211
6UHT Crystal structure of BoNT/B receptor-binding domain in complex with VHH JLI-G10 Deposited 2019-09-28	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 859–1291（433 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；15 % PEG 20000 and 0.1 M MES pH 6.5	Resolution 2.20 Å R-free 0.211
6UL4 Crystal structure of BoNT/B receptor-binding domain in complex with VHH JLO-G11 Deposited 2019-10-06	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 859–1291（433 aa） Fragment：receptor-binding domain	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；291 K；20 % Ethanol, 0.1 M Tris	Resolution 3.18 Å R-free 0.258
7NA9 Crystal structure of BoNT/B-LC-JSG-C1 Deposited 2021-06-20	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–441（441 aa）	Not recorded	EDO 1,2-ETHANEDIOL × 3 ZN ZINC ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291 K；20% PEG4000	Resolution 1.76 Å R-free 0.205
7QFQ Cryo-EM structure of Botulinum neurotoxin serotype B Deposited 2021-12-06	Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–1291（1291 aa）	Mutation：E231Q, H234Y	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH7.5, 50mM NaCl, 0.5mM TCEP cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
7T5F Botulinum neurotoxin Type B Light Chain complexed with nanobodies JLJ-G3 and JNE-B10 Deposited 2021-12-12	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–425（425 aa）	Not recorded	ZN ZINC ION × 1 IOD IODIDE ION × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；291 K；0.2 M KI, 0.1 M MES pH 6.5, 25 % PEG 4000	Resolution 2.60 Å R-free 0.222
7T5F Botulinum neurotoxin Type B Light Chain complexed with nanobodies JLJ-G3 and JNE-B10 Deposited 2021-12-12	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain D 1–425（425 aa）	Not recorded	ZN ZINC ION × 1 IOD IODIDE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；291 K；0.2 M KI, 0.1 M MES pH 6.5, 25 % PEG 4000	Resolution 2.60 Å R-free 0.222

33 other PDB entries and 46 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	BXB_CLOBO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–1290； UniProt 1–1290

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	1epw
Deposition date deposition_date	2000-03-29
Structure title title	CRYSTAL STRUCTURE OF CLOSTRIDIUM NEUROTOXIN TYPE B
Keywords keywords	botulinum, zinc, metalloprotease, transmembrane, neurotoxin, HYDROLASE; HYDROLASE
Experimental Method method	X-RAY DIFFRACTION

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	40.72 Å
Radius of gyration Rg (electron density) rg_electron	40.62 Å
Forward intensity I(0) i0	314086000.00
Molecular weight molecular_weight	149960.0 kDa
Excluded volume excluded_volume	189590 Å³
Envelope volume envelope_volume	246190 Å³
Hydration-shell volume shell_volume	51970 Å³
Envelope diameter envelope_diameter	155.1 Å
Shell Rg shell_rg	44.46 Å
Envelope Rg envelope_rg	40.56 Å
Shape Rg shape_rg	40.63 Å
Total Rg total_rg	40.77 Å
Total atoms total_atoms	10592
Residues n_residues	1287
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	141.9 Å
Rg (real space) rg_real	40.88 Å
Rg uncertainty (real space) rg_real_error	1.54 Å
I(0) (real space) i0_real	3.1410e+08
I(0) uncertainty (real space) i0_real_error	6.2290e+06
Rg (reciprocal space) rg_reciprocal	40.72 Å
I(0) (reciprocal space) i0_reciprocal	314000000.0000
Solution quality estimate total_estimate	0.8567
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	2
Primary peak position r_peak_primary	40.0 Å
Skewness Skewness skewness	0.451
Kurtosis Kurtosis kurtosis	-0.296
Angular range angular_range	— – 0.1950 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	51860000.0000
Real-space data points n_real_points	40
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.812; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.852; Smooth: 0.844

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	BOTULINUM NEUROTOXIN TYPE B
Molecular weight formula_weight	150833.4 kDa
EC 编号 ec_number	3.4.24.69
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	11456

PVTINNFNYNDPIDNNNIIMMEPPFARGTGRYYKAFKITDRIWIIPERYTFGYKPEDFNKSSGIFNRDVCEYYDPDYLNTNDKKNIFLQTMIKLFNRIKSKPLGEKLLEMIINGIPYLGDRRVPLEEFNTNIASVTVNKLISNPGEVERKKGIFANLIIFGPGPVLNENETIDIGIQNHFASREGFGGIMQMKFCPEYVSVFNNVQENKGASIFNRRGYFSDPALILMHELIHVLHGLYGIKVDDLPIVPNEKKFFMQSTDAIQAEELYTFGGQDPSIITPSTDKSIYDKVLQNFRGIVDRLNKVLVCISDPNININIYKNKFKDKYKFVEDSEGKYSIDVESFDKLYKSLMFGFTETNIAENYKIKTRASYFSDSLPPVKIKNLLDNEIYTIEEGFNISDKDMEKEYRGQNKAINKQAYEEISKEHLAVYKIQMCKSVKAPGICIDVDNEDLFFIADKNSFSDDLSKNERIEYNTQSNYIENDFPINELILDTDLISKIELPSENTESLTDFNVDVPVYEKQPAIKKIFTDENTIFQYLYSQTFPLDIRDISLTSSFDDALLFSNKVYSFFSMDYIKTANKVVEAGLFAGWVKQIVNDFVIEANKSNTMDKIADISLIVPYIGLALNVGNETAKGNFENAFEIAGASILLEFIPELLIPVVGAFLLESYIDNKNKIIKTIDNALTKRNEKWSDMYGLIVAQWLSTVNTQFYTIKEGMYKALNYQAQALEEIIKYRYNIYSEKEKSNINIDFNDINSKLNEGINQAIDNINNFINGCSVSYLMKKMIPLAVEKLLDFDNTLKKNLLNYIDENKLYLIGSAEYEKSKVNKYLKTIMPFDLSIYTNDTILIEMFNKYNSEILNNIILNLRYKDNNLIDLSGYGAKVEVYDGVELNDKNQFKLTSSANSKIRVTQNQNIIFNSVFLDFSVSFWIRIPKYKNDGIQNYIHNEYTIINCMKNNSGWKISIRGNRIIWTLIDINGKTKSVFFEYNIREDISEYINRWFFVTITNNLNNAKIYINGKLESNTDIKDIREVIANGEIIFKLDGDIDRTQFIWMKYFSIFNTELSQSNIEERYKIQSYSEYLKDFWGNPLMYNKEYYMFNAGNKNSYIKLKKDSPVGEILTRSKYNQNSKYINYRDLYIGEKFIIRRKSNSQSINDDIVRKEDYIYLDFFNLNQEWRVYTYKYFKKEEEKLFLAPISDSDEFYNTIQIKEYDEQPTYSCQLLFKKDEESTDEIGLIGIHRFYESGIVFEEYKDYFCISKWYLKEVKRKPYNLKLGCNWQFIPKDEGWTE

Entity 2 Entity 2 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	864

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7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1epwa1
Class class	b — All beta proteins
Fold Fold fold	b.29 — Concanavalin A-like lectins/glucanases
Superfamily Superfamily superfamily	b.29.1 — Concanavalin A-like lectins/glucanases
Family Family family	b.29.1.6 — Clostridium neurotoxins, the second last domain

Domain ID domain_id	d1epwa2
Class class	b — All beta proteins
Fold Fold fold	b.42 — beta-Trefoil
Superfamily Superfamily superfamily	b.42.4 — STI-like
Family Family family	b.42.4.2 — Clostridium neurotoxins, C-terminal domain

Domain ID domain_id	d1epwa3
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.92 — Zincin-like
Superfamily Superfamily superfamily	d.92.1 — Metalloproteases ('zincins'), catalytic domain
Family Family family	d.92.1.7 — Clostridium neurotoxins, catalytic domain

Domain ID domain_id	d1epwa4
Class class	h — Coiled coil proteins
Fold Fold fold	h.4 — Antiparallel coiled-coil
Superfamily Superfamily superfamily	h.4.2 — Clostridium neurotoxins, 'coiled-coil' domain
Family Family family	h.4.2.1 — Clostridium neurotoxins, 'coiled-coil' domain

CATH v4.4 (4 domains)

Domain ID domain_id	1epwA01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1240 — Zincin-like
Homologous superfamily homologous superfamily	10 — Metalloproteases ("zincins"), catalytic domain like

Domain ID domain_id	1epwA02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	1120 — Clostridium botulinum neurotoxin B, "coiled-coil" domain
Homologous superfamily homologous superfamily	10 — Clostridium botulinum neurotoxin b, "coiled-coil" domain

Domain ID domain_id	1epwA03
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	200 —

Domain ID domain_id	1epwA04
Class class	2 — Mainly Beta
Architecture architecture	80 — Trefoil
Topology topology	10 — Trefoil (Acidic Fibroblast Growth Factor, subunit A)
Homologous superfamily homologous superfamily	50 —

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8. Citations (1)

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Unit-cell length a length_a	75.820 Å
Unit-cell length b length_b	123.120 Å
Unit-cell length c length_c	96.230 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	113.80 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	2

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	1.900 Å
Low-resolution limit resolution_low	50.000 Å
R factor r_factor	—
R_work r_work	0.2017
R_free r_free	0.2325

fit	/app/data/saxs_computation/ep/1epw/1epw.fit
pddf	/app/data/pr_computation/ep/1epw/1epw.pr.out
profile	/app/data/saxs_computation/ep/1epw/1epw.dat