IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v4y2013i1d10.1038_ncomms2726.html
   My bibliography  Save this article

An engineered dimeric protein pore that spans adjacent lipid bilayers

Author

Listed:
  • Shiksha Mantri

    (University of Oxford)

  • K. Tanuj Sapra

    (University of Oxford)

  • Stephen Cheley

    (University of Oxford
    Present address: Department of Pharmacology, Alberta Diabetes Institute, University of Alberta, Edmonton, Canada T6G 2E1)

  • Thomas H. Sharp

    (University of Oxford)

  • Hagan Bayley

    (University of Oxford)

Abstract

The bottom-up construction of artificial tissues is an underexplored area of synthetic biology. An important challenge is communication between constituent compartments of the engineered tissue, and between the engineered tissue and additional compartments, including extracellular fluids, further engineered tissue and living cells. Here we present a dimeric transmembrane pore that can span two adjacent lipid bilayers, and thereby allow aqueous compartments to communicate. Two heptameric staphylococcal α-hemolysin pores were covalently linked in an aligned cap-to-cap orientation. The structure of the dimer, (α7)2, was confirmed by biochemical analysis, transmission electron microscopy and single-channel electrical recording. We show that one of two β-barrels of (α7)2 can insert into the lipid bilayer of a small unilamellar vesicle, while the other spans a planar lipid bilayer. The (α7)2 pores spanning two bilayers were also observed by transmission electron microscopy.

Suggested Citation

  • Shiksha Mantri & K. Tanuj Sapra & Stephen Cheley & Thomas H. Sharp & Hagan Bayley, 2013. "An engineered dimeric protein pore that spans adjacent lipid bilayers," Nature Communications, Nature, vol. 4(1), pages 1-10, June.
  • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms2726
    DOI: 10.1038/ncomms2726
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms2726
    File Function: Abstract
    Download Restriction: no

    File URL: https://libkey.io/10.1038/ncomms2726?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Alexander Harjung & Alessandro Fracassi & Neal K. Devaraj, 2024. "Encoding extracellular modification of artificial cell membranes using engineered self-translocating proteins," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Swarup Dey & Adam Dorey & Leeza Abraham & Yongzheng Xing & Irene Zhang & Fei Zhang & Stefan Howorka & Hao Yan, 2022. "A reversibly gated protein-transporting membrane channel made of DNA," Nature Communications, Nature, vol. 13(1), pages 1-12, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms2726. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.