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Cited by 255

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Structure of the Membrane Protein FhaC: A Member of the Omp85-TpsB Transporter Superfamily

Clantin, Bernard, Delattre, Anne-Sophie, Rucktooa, Prakash, Saint, Nathalie, Méli, Albano C., Locht, Camille, Jacob-Dubuisson, Françoise, Villeret, Vincent·2007·Science

Abstract

In Gram-negative bacteria and eukaryotic organelles, β-barrel proteins of the outer membrane protein 85–two-partner secretion B (Omp85-TpsB) superfamily are essential components of protein transport machineries. The TpsB transporter FhaC mediates the secretion of Bordetella pertussis filamentous hemagglutinin (FHA). We report the 3.15 Å crystal structure of FhaC. The transporter comprises a 16-stranded β barrel that is occluded by an N-terminal α helix and an extracellular loop and a periplasmic module composed of two aligned polypeptide-transport–associated (POTRA) domains. Functional data reveal that FHA binds to the POTRA 1 domain via its N-terminal domain and likely translocates the adhesin-repeated motifs in an extended hairpin conformation, with folding occurring at the cell surface. General features of the mechanism obtained here are likely to apply throughout the superfamily.

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Metadata

Authors
Clantin, B., Delattre, A.-S., Rucktooa, P., Saint, N., Méli, A. C., Locht, C., Jacob-Dubuisson, F., & Villeret, V.
Venue
Science
Published
2007-08-17
Volume
317
Issue
5840
Pages
957-961
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2059000517
Cited by
255
References
25
FWCI
13.40
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Structure of the Membrane Protein FhaC: A Member of the Omp85-TpsB Transporter Superfamily. https://app.cochat.ai/papers/10.1126/science.1143860
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Clantin, B., Delattre, A.-S., Rucktooa, P., Saint, N., Méli, A. C., Locht, C., Jacob-Dubuisson, F., & Villeret, V. (2007). Structure of the Membrane Protein FhaC: A Member of the Omp85-TpsB Transporter Superfamily. Science. https://doi.org/10.1126/science.1143860

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.