1MR3 image
Entry Detail
PDB ID:
1MR3
Title:
Saccharomyces cerevisiae ADP-ribosylation Factor 2 (ScArf2) complexed with GDP-3'P at 1.6A resolution
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2002-09-17
Release Date:
2002-11-20
Method Details:
Experimental Method:
Resolution:
1.60 Å
R-Value Free:
0.23
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
P 21 21 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:ADP-ribosylation factor 2
Chain IDs:A (auth: F)
Chain Length:181
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Primary Citation
Structures of yeast ARF2 and ARL1: distinct roles for the N terminus in the structure and function of ARF family GTPases.
J.Biol.Chem. 276 42477 42484 (2001)
PMID: 11535602 DOI: 10.1074/jbc.M106660200

Abstact

Structures were determined by x-ray crystallography for two members of the ADP-ribosylation factor (ARF) family of regulatory GTPases, yeast ARF1 and ARL1, and were compared with previously determined structures of human ARF1 and ARF6. These analyses revealed an overall conserved fold but differences in primary sequence and length, particularly in an N-terminal loop, lead to differences in nucleotide and divalent metal binding. Packing of hydrophobic residues is central to the interplay between the N-terminal alpha-helix, switch I, and the interswitch region, which along with differences in surface electrostatics provide explanations for the different biophysical and biochemical properties of ARF and ARF-like proteins.

Legend

Protein

Chemical

Disease

Primary Citation of related structures