Macromolecule Content

• Total Structure Weight: 12.99 kDa 
• Atom Count: 890 
• Residue Count: 116 
• Unique protein chains: 1

2KOG

lipid-bound synaptobrevin solution NMR structure

• DOI: 10.2210/pdb2KOG/pdb

• Classification: MEMBRANE PROTEIN
• Organism(s): Rattus norvegicus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-09-22 Released: 2009-12-01 
• Deposition Author(s): Ellena, J.F., Liang, B., Wiktor, M., Stein, A., Cafiso, D.S., Jahn, R., Tamm, L.K.

---

Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Dynamic structure of lipid-bound synaptobrevin suggests a nucleation-propagation mechanism for trans-SNARE complex formation.

Ellena, J.F., Liang, B., Wiktor, M., Stein, A., Cafiso, D.S., Jahn, R., Tamm, L.K.

(2009) Proc Natl Acad Sci U S A 106: 20306-20311

• PubMed: 19918058 
• DOI: 10.1073/pnas.0908317106
• Primary Citation of Related Structures:  
  2KOG


• PubMed Abstract: 
  

The synaptic vesicle protein synaptobrevin engages with syntaxin and SNAP-25 to form the SNARE complex, which drives membrane fusion in neuronal exocytosis. In the SNARE complex, the SNARE motif of synaptobrevin forms a 55-residue helix, but it has been assumed to be mostly unstructured in its prefusion form. NMR data for full-length synaptobrevin in dodecylphosphocholine micelles reveals two transient helical segments flanked by natively disordered regions and a third more stable helix. Transient helix I comprises the most N-terminal part of the SNARE motif, transient helix II extends the SNARE motif into the juxtamembrane region, and the more stable helix III is the transmembrane domain. These helices may have important consequences for SNARE complex folding and fusion: helix I likely forms a nucleation site, the C-terminal disordered SNARE motif may act as a folding arrest signal, and helix II likely couples SNARE complex folding and fusion.

---

Organizational Affiliation: 

Biomolecular Magnetic Resonance Research Core, PO Box 800741, University of Virginia, Charlottesville, VA 22908, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Vesicle-associated membrane protein 2	A	119	Rattus norvegicus	Mutation(s): 0  Gene Names: Vamp2, Syb2
Membrane protein Mpstruc	Group:  TRANSMEMBRANE PROTEINS: ALPHA-HELICAL		Sub Group:  SNARE Protein Family	Protein:  Synaptobrevin, lipid-bound
Find proteins for P63045 (Rattus norvegicus) Explore P63045  Go to UniProtKB:  P63045

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 
• OLDERADO: 2KOG Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2009-09-22 
• Released Date: 2009-12-01 
Deposition Author(s): Ellena, J.F., Liang, B., Wiktor, M., Stein, A., Cafiso, D.S., Jahn, R., Tamm, L.K.

Revision History 

• Version 1.0: 2009-12-01
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance