1S94

Crystal structure of the Habc domain of neuronal syntaxin from the squid Loligo pealei

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.34 Å
  • R-Value Free: 0.375 
  • R-Value Work: 0.309 
  • R-Value Observed: 0.313 

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This is version 1.2 of the entry. See complete history. 


Literature

Crystal structure of the Habc domain of neuronal syntaxin from the squid Loligo pealei reveals conformational plasticity at its C-terminus

Bracher, A., Weissenhorn, W.

(2004) BMC Struct Biol 4: 6-6

  • DOI: 10.1186/1472-6807-4-6
  • Primary Citation of Related Structures:  
    1S94

  • PubMed Abstract: 

    • Intracellular membrane fusion processes are mediated by the spatial and temporal control of SNARE complex assembly that results in the formation of a four-helical bundle, composed of one vesicle SNARE and three target membrane SNARE polypeptide chains. Syntaxins are essential t-SNAREs and are characterized by an N-terminal Habc domain, a flexible linker region, a coiled-coil or SNARE motif and a membrane anchor ...

    Intracellular membrane fusion processes are mediated by the spatial and temporal control of SNARE complex assembly that results in the formation of a four-helical bundle, composed of one vesicle SNARE and three target membrane SNARE polypeptide chains. Syntaxins are essential t-SNAREs and are characterized by an N-terminal Habc domain, a flexible linker region, a coiled-coil or SNARE motif and a membrane anchor. The N-terminal Habc domain fulfills important regulatory functions while the coiled-coil motif, present in all SNAREs, is sufficient for SNARE complex formation, which is thought to drive membrane fusion.

    Organizational Affiliation: 

    European Molecular Biology Laboratory, 6 rue Jules Horowitz, 38042 Grenoble, France. bracher@biochem.mpg.de



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
s-syntaxinA, B180Doryteuthis pealeiiMutation(s): 1 
Find proteins for O46345 (Doryteuthis pealeii)
Explore O46345 
Go to UniProtKB:  O46345
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.34 Å
  • R-Value Free: 0.375 
  • R-Value Work: 0.309 
  • R-Value Observed: 0.313 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.056α = 90
b = 73.056β = 90
c = 224.434γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-05-11
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Version format compliance