3T5D

Crystal structure of Septin 7 in complex with GDP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.318 
  • R-Value Work: 0.285 
  • R-Value Observed: 0.287 

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This is version 1.0 of the entry. See complete history


Literature

Structural and biochemical properties of Sept7, a unique septin required for filament formation.

Zent, E.Vetter, I.Wittinghofer, A.

(2011) Biol Chem 392: 791-797

  • DOI: 10.1515/BC.2011.082
  • Primary Citation of Related Structures:  
    3T5D

  • PubMed Abstract: 
  • Septins constitute a family of conserved guanine nucleotide binding proteins found in a wide range of organisms from fungi to mammals. Members of the family share a canonical G-domain with N- and C-terminal extensions. G-domains assemble into hetero-oligomeric complexes which form non-polarised filaments or rings ...

    Septins constitute a family of conserved guanine nucleotide binding proteins found in a wide range of organisms from fungi to mammals. Members of the family share a canonical G-domain with N- and C-terminal extensions. G-domains assemble into hetero-oligomeric complexes which form non-polarised filaments or rings. Linear filaments are formed between the G-domains using either the guanine nucleotide binding site (G interface) or N- and C-terminal extensions (NC interface). Sept7 is a unique among the 13 human septins in that it occupies the ends of hexameric building blocks which assemble into non-polarised filaments. To gain insight into its particular properties we performed structural and biochemical studies on Sept7. We solved the crystal structure of a Sept7 dimer in the GDP-bound state. The structure and biochemistry of Sept7 provide new insights into the dynamics of the G interface and outline the differences in the properties of Sept7 compared to the members of group 2 septins.


    Organizational Affiliation

    Structural Biology Group, Max Planck Institute of Molecular Physiology, Dortmund, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Septin-7A, B [auth C]274Homo sapiensMutation(s): 0 
Gene Names: SEPT7CDC10SEPTIN7
UniProt & NIH Common Fund Data Resources
Find proteins for Q16181 (Homo sapiens)
Explore Q16181 
Go to UniProtKB:  Q16181
PHAROS:  Q16181
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDP (Subject of Investigation/LOI)
Query on GDP

Download Ideal Coordinates CCD File 
C [auth A], D [auth C]GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.318 
  • R-Value Work: 0.285 
  • R-Value Observed: 0.287 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 82.363α = 90
b = 82.363β = 90
c = 210.598γ = 120
Software Package:
Software NamePurpose
PROdata collection
MOLREPphasing
REFMACrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-08-24
    Type: Initial release