1QCS image
Entry Detail
PDB ID:
1QCS
Keywords:
FUSION PROTEIN
Title:
N-TERMINAL DOMAIN OF N-ETHYLMALEIMIDE SENSITIVE FACTOR (NSF)
Biological Source:
Source Organism:
Cricetulus griseus
Host Organism:
Escherichia coli BL21(DE3)
PDB Version:
Deposition Date:
1999-05-14
Release Date:
1999-05-18
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.90 Å
R-Value Free:
0.24
R-Value Work:
0.21
R-Value Observed:
0.21
Space Group:
C 2 2 21
1QCS validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Description:N-ETHYLMALEIMIDE SENSITIVE FACTOR (NSF-N)
Chain IDs:A
Chain Length:211
Number of Molecules:1
Biological Source:Cricetulus griseus
UniProt ID:P18708 Pfam ID:PF02359, PF02933
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
MSE A MET SELENOMETHIONINE
Ligand Molecules
SO4
Primary Citation
NSF N-terminal domain crystal structure: models of NSF function.
Mol.Cell 4 97 107 (1999)
PMID: 10445031 DOI: 10.1016/S1097-2765(00)80191-4

Abstact

N-ethylmaleimide-sensitive factor (NSF) is a hexameric ATPase essential for eukaryotic vesicle fusion. Along with SNAP proteins, it disassembles cis-SNARE complexes upon ATP hydrolysis, preparing SNAREs for trans complex formation. We have determined the crystal structure of the N-terminal domain of NSF (N) to 1.9 A resolution. N contains two subdomains which form a groove that is a likely SNAP interaction site. Unexpectedly, both N subdomains are structurally similar to domains in EF-Tu. Based on this similarity, we propose a model for a large conformational change in NSF that drives SNARE complex disassembly.

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Primary Citation of related structures
1NSF
1D2N