1HUR

HUMAN ADP-RIBOSYLATION FACTOR 1 COMPLEXED WITH GDP, FULL LENGTH NON-MYRISTOYLATED


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.213 
  • R-Value Observed: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of the human ADP-ribosylation factor 1 complexed with GDP.

Amor, J.C.Harrison, D.H.Kahn, R.A.Ringe, D.

(1994) Nature 372: 704-708

  • DOI: 10.1038/372704a0
  • Primary Citation of Related Structures:  
    1HUR

  • PubMed Abstract: 
  • ADP-ribosylation factors (ARFs) are essential and ubiquitous in eukaryotes, being involved in vesicular transport and functioning as an activator of phospholipase D (refs 1, 2) and cholera toxin. The functions of ARF proteins in membrane traffic and ...

    ADP-ribosylation factors (ARFs) are essential and ubiquitous in eukaryotes, being involved in vesicular transport and functioning as an activator of phospholipase D (refs 1, 2) and cholera toxin. The functions of ARF proteins in membrane traffic and organelle integrity are intimately tied to its reversible association with membranes and specific interactions with membrane phospholipids. One common feature of these functions is their regulation by the binding and hydrolysis of GTP. Here we report the three-dimensional structure of full-length human ARF1 (M(r) 21,000) in its GDP-bound non-myristoylated form. The presence of a unique amino-terminal alpha-helix and loop, together with differences in Mg2+ ligation and the existence of a non-crystallographic dimer, set this structure apart from other GTP-binding proteins. These features provide a structural basis for the GTP-dependent modulation of membrane affinity, the lack of intrinsic GTPase activity, and the nature of effector binding surfaces.


    Organizational Affiliation

    Department of Biochemistry, Brandeis University, Waltham, Massachusetts 02254.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HUMAN ADP-RIBOSYLATION FACTOR 1AB180Homo sapiensMutation(s): 0 
Gene Names: HARF1ARF1
Find proteins for P84077 (Homo sapiens)
Explore P84077 
Go to UniProtKB:  P84077
NIH Common Fund Data Resources
PHAROS  P84077
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDP
Query on GDP

Download CCD File 
A, B
GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
 Ligand Interaction
MG
Query on MG

Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.213 
  • R-Value Observed: 0.213 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 121.01α = 90
b = 45.92β = 133.51
c = 91.78γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
XDSdata reduction
R-AXISdata reduction
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-07-10
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance