Nature Communications (Sep 2019)

Cryo-EM structures of lipopolysaccharide transporter LptB2FGC in lipopolysaccharide or AMP-PNP-bound states reveal its transport mechanism

  • Xiaodi Tang,
  • Shenghai Chang,
  • Qinghua Luo,
  • Zhengyu Zhang,
  • Wen Qiao,
  • Caihuang Xu,
  • Changbin Zhang,
  • Yang Niu,
  • Wenxian Yang,
  • Ting Wang,
  • Zhibo Zhang,
  • Xiaofeng Zhu,
  • Xiawei Wei,
  • Changjiang Dong,
  • Xing Zhang,
  • Haohao Dong

DOI
https://doi.org/10.1038/s41467-019-11977-1
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 12

Abstract

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Seven lipopolysaccharide (LPS) transport proteins (LptBFGCADE) mediate the transport of LPS from the inner to the outer membrane of Gram-negative bacteria. Here the authors provide mechanistic insights into LPS recognition and transportation by determining the cryo-EM structures of the inner membrane complex LptB2FGC bound to either LPS or AMP-PNP.