Nature Communications (Mar 2019)

Complex formation of APP with GABAB receptors links axonal trafficking to amyloidogenic processing

  • Margarita C. Dinamarca,
  • Adi Raveh,
  • Andy Schneider,
  • Thorsten Fritzius,
  • Simon Früh,
  • Pascal D. Rem,
  • Michal Stawarski,
  • Txomin Lalanne,
  • Rostislav Turecek,
  • Myeongjeong Choo,
  • Valérie Besseyrias,
  • Wolfgang Bildl,
  • Detlef Bentrop,
  • Matthias Staufenbiel,
  • Martin Gassmann,
  • Bernd Fakler,
  • Jochen Schwenk,
  • Bernhard Bettler

DOI
https://doi.org/10.1038/s41467-019-09164-3
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 17

Abstract

Read online

The mechanisms that control the presynaptic abundance of GABAB receptors (GBRs) remains unclear. This study shows that sequence-related epitopes in APP, AJAP-1 and PIANP bind with nanomolar affinities to the N-terminal sushi-domain of presynaptic GBRs, and that selective loss of APP impaired GBR-mediated presynaptic inhibition and axonal GBR expression