Acyl-CoA binding domain containing 3 (ACBD3) recruits the protein phosphatase PPM1L to ER-Golgi membrane contact sites

FEBS Lett. 2012 Sep 21;586(19):3024-9. doi: 10.1016/j.febslet.2012.06.050. Epub 2012 Jul 10.

Abstract

The metal-dependent protein phosphatase family (PPM) governs a number of signaling pathways. PPM1L, originally identified as a negative regulator of stress-activated protein kinase signaling, was recently shown to be involved in the regulation of ceramide trafficking at ER-Golgi membrane contact sites. Here, we identified acyl-CoA binding domain containing 3 (ACBD3) as an interacting partner of PPM1L. We showed that this association, which recruits PPM1L to ER-Golgi membrane contact sites, is mediated by a GOLD (Golgi dynamics) domain in ACBD3. These results suggested that ACBD3 plays a pivotal role in ceramide transport regulation at the ER-Golgi interface.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adaptor Proteins, Signal Transducing / chemistry
  • Adaptor Proteins, Signal Transducing / genetics
  • Adaptor Proteins, Signal Transducing / metabolism*
  • Binding Sites
  • Endoplasmic Reticulum / metabolism*
  • Golgi Apparatus / metabolism*
  • HEK293 Cells
  • HeLa Cells
  • Humans
  • Membrane Proteins / chemistry
  • Membrane Proteins / genetics
  • Membrane Proteins / metabolism*
  • Models, Biological
  • Models, Molecular
  • Phosphoprotein Phosphatases / chemistry
  • Phosphoprotein Phosphatases / genetics
  • Phosphoprotein Phosphatases / metabolism*
  • Protein Interaction Domains and Motifs
  • Protein Serine-Threonine Kinases / chemistry
  • Protein Serine-Threonine Kinases / genetics
  • Protein Serine-Threonine Kinases / metabolism
  • Protein Transport
  • Recombinant Fusion Proteins / chemistry
  • Recombinant Fusion Proteins / genetics
  • Recombinant Fusion Proteins / metabolism
  • Signal Transduction
  • Two-Hybrid System Techniques
  • Vesicular Transport Proteins / chemistry
  • Vesicular Transport Proteins / genetics
  • Vesicular Transport Proteins / metabolism

Substances

  • ACBD3 protein, human
  • Adaptor Proteins, Signal Transducing
  • Membrane Proteins
  • Recombinant Fusion Proteins
  • VAPA protein, human
  • Vesicular Transport Proteins
  • CERT1 protein, human
  • Protein Serine-Threonine Kinases
  • PPM1L protein, human
  • Phosphoprotein Phosphatases