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Related Experiment Videos

Arf and its many interactors.

Zhongzhen Nie1, Dianne S Hirsch, Paul A Randazzo

  • 1Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, Building 37, Room 4118, Bethesda, MD 20892, USA.

Current Opinion in Cell Biology
|August 2, 2003
PubMed
Summary
This summary is machine-generated.

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ADP-ribosylation factor (Arf) GTP-binding proteins control cell membrane traffic and actin remodeling. Their functions are mediated by effector proteins, with recent studies prompting a re-evaluation of Arf action mechanisms.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • ADP-ribosylation factor (Arf) GTP-binding proteins are key regulators of membrane traffic and actin remodeling.
  • Arf proteins function through complexes with effector proteins, similar to other GTP-binding proteins.

Purpose of the Study:

  • To explore the diverse range of Arf effector proteins.
  • To examine the functional relationships among Arf interactors.
  • To reconsider existing paradigms of Arf action.

Main Methods:

  • Literature review of Arf protein interactions.
  • Analysis of Arf effector protein families.
  • Functional relationship assessment of Arf interactors.

Main Results:

Related Experiment Videos

  • Arf proteins interact with at least three distinct effector types: structural proteins (vesicle coat proteins), lipid-metabolizing enzymes, and proteins with undefined functions.
  • Arf also interacts with guanine nucleotide exchange factors and GTPase-activating proteins.
  • Recent research highlights the functional interplay among these diverse Arf interactors.

Conclusions:

  • The established models of Arf function require revision based on the complexity of Arf-effector interactions.
  • Understanding the full spectrum of Arf interactors is crucial for elucidating Arf-mediated cellular processes.
  • Further investigation into the roles of less-defined Arf-binding proteins is warranted.