Nature Communications (Sep 2019)

The structural basis of lipid scrambling and inactivation in the endoplasmic reticulum scramblase TMEM16K

  • Simon R. Bushell,
  • Ashley C. W. Pike,
  • Maria E. Falzone,
  • Nils J. G. Rorsman,
  • Chau M. Ta,
  • Robin A. Corey,
  • Thomas D. Newport,
  • John C. Christianson,
  • Lara F. Scofano,
  • Chitra A. Shintre,
  • Annamaria Tessitore,
  • Amy Chu,
  • Qinrui Wang,
  • Leela Shrestha,
  • Shubhashish M. M. Mukhopadhyay,
  • James D. Love,
  • Nicola A. Burgess-Brown,
  • Rebecca Sitsapesan,
  • Phillip J. Stansfeld,
  • Juha T. Huiskonen,
  • Paolo Tammaro,
  • Alessio Accardi,
  • Elisabeth P. Carpenter

DOI
https://doi.org/10.1038/s41467-019-11753-1
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 16

Abstract

Read online

TMEM16K is a member of the TMEM16 family of integral membrane proteins that are either lipid scramblases or chloride channels. Here the authors combine cell biology, electrophysiology measurements, X-ray crystallography, cryo-EM and MD simulations to structurally characterize TMEM16K and show that it is an ER-resident lipid scramblase.