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X-ray diffraction
2.5Å resolution

Botulinum neurotoxin B2 binding domain in complex with human synaptotagmin I

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-149305 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Neurotoxin B Chain: AAA
Molecule details ›
Chain: AAA
Length: 438 amino acids
Theoretical weight: 52.46 KDa
Source organism: Clostridium botulinum
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: Q8GR96 (Residues: 857-1291; Coverage: 34%)
Gene name: bontb
Sequence domains:
Synaptotagmin-1 Chain: BBB
Molecule details ›
Chain: BBB
Length: 21 amino acids
Theoretical weight: 2.47 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: P21579 (Residues: 33-53; Coverage: 5%)
Gene names: SVP65, SYT, SYT1

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I04
Spacegroup: P212121
Unit cell:
a: 57.677Å b: 82.528Å c: 106.7Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.261 0.259 0.283
Expression systems:
  • Escherichia coli BL21
  • Not provided