2K5U

Solution structure of myirstoylated yeast ARF1 protein, GDP-bound

• PDB DOI: https://doi.org/10.2210/pdb2K5U/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Saccharomyces cerevisiae
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-06-30 Released: 2009-01-27 
• Deposition Author(s): Prestegard, J., Liu, Y.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 16 
• Selection Criteria: structures with the lowest energy 

Literature

Structure and Membrane Interaction of Myristoylated ARF1

Liu, Y., Kahn, R.A., Prestegard, J.H.

(2009) Structure 17: 79-87

• PubMed: 19141284 
• DOI: https://doi.org/10.1016/j.str.2008.10.020
• Primary Citation of Related Structures:  
  2K5U


• PubMed Abstract: 
  

  ADP-ribosylation factors (ARFs) are small (21 kDa), monomeric GTPases that are important regulators of membrane traffic. When membrane bound, they recruit soluble adaptors to membranes and trigger the assembly of coating complexes involved in cargo selection and vesicular budding. N-myristoylation is a conserved feature of all ARF proteins that is required for its biological functions, although the mechanism(s) by which the myristate acts in ARF functions is not fully understood. Here we present the structure of a myristoylated ARF1 protein, determined by solution NMR methods, and an assessment of the influence of myristoylation on association of ARF1.GDP and ARF1.GTP with lipid bilayers. A model in which myristoylation contributes to both the regulation of guanine nucleotide exchange and stable membrane association is supported.

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Organizational Affiliation: 

Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602-4712, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 21.07 kDa 
• Atom Count: 1,480 
• Modelled Residue Count: 181 
• Deposited Residue Count: 181 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ADP-ribosylation factor 1	A	181	Saccharomyces cerevisiae	Mutation(s): 0  Gene Names: ARF1 EC: 3.6.5.2
UniProt
Find proteins for P11076 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P11076  Go to UniProtKB:  P11076

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GDP	B [auth A]	GUANOSINE-5'-DIPHOSPHATE C10 H15 N5 O11 P2 QGWNDRXFNXRZMB-UUOKFMHZSA-N

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 16 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-01-27 
Deposition Author(s): Prestegard, J., Liu, Y.

Revision History  

• Version 1.0: 2009-01-27
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2022-03-16
  Changes: Data collection, Database references, Derived calculations