The LDL receptor-related protein can form homo-dimers in neuronal cells

Neurosci Lett. 2008 Sep 12;442(2):91-5. doi: 10.1016/j.neulet.2008.06.070. Epub 2008 Jun 28.

Abstract

The ability of the low density lipoprotein receptor-related protein (LRP) to form homo-dimers was studied in mouse neuroblastoma and human neuroglioma cells as well as in primary cortical cultures from adult mouse brain. Homo-dimerization of LRP light chain (LC) was shown by several methods including co-immunoprecipitation, fluorescence lifetime imaging microscopy, and bimolecular fluorescence complementation assay. The requirement of intact NPXY motifs of LRP LC for homo-dimerization was ruled out by co-immunoprecipitation assay.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Amino Acid Motifs
  • Animals
  • Cells, Cultured
  • Cerebral Cortex / cytology
  • Embryo, Mammalian
  • Endocytosis
  • Fluorescence Resonance Energy Transfer / methods
  • Green Fluorescent Proteins / genetics
  • Green Fluorescent Proteins / metabolism
  • Humans
  • Low Density Lipoprotein Receptor-Related Protein-1 / genetics
  • Low Density Lipoprotein Receptor-Related Protein-1 / metabolism*
  • Mice
  • Neurons / metabolism*
  • Protein Processing, Post-Translational
  • Sequence Homology, Amino Acid*
  • Transfection / methods

Substances

  • Low Density Lipoprotein Receptor-Related Protein-1
  • Green Fluorescent Proteins