Volume 52, Issue 30 pp. 7704-7708
Communication

Light-Regulated Stapled Peptides to Inhibit Protein–Protein Interactions Involved in Clathrin-Mediated Endocytosis

Dr. Laura Nevola

Dr. Laura Nevola

Institute for Research in Biomedicine (IRB Barcelona), C/Baldiri Reixac 10, 08028 Barcelona (Spain)

These authors contributed equally to this work.

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Andrés Martín-Quirós

Andrés Martín-Quirós

Institute for Bioengineering of Catalonia (IBEC), C/Baldiri Reixac 15-21, 08028 Barcelona (Spain)

These authors contributed equally to this work.

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Dr. Kay Eckelt

Dr. Kay Eckelt

Institute for Bioengineering of Catalonia (IBEC), C/Baldiri Reixac 15-21, 08028 Barcelona (Spain)

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Dr. Núria Camarero

Dr. Núria Camarero

Institute for Bioengineering of Catalonia (IBEC), C/Baldiri Reixac 15-21, 08028 Barcelona (Spain)

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Dr. Sébastien Tosi

Dr. Sébastien Tosi

Institute for Research in Biomedicine (IRB Barcelona), C/Baldiri Reixac 10, 08028 Barcelona (Spain)

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Dr. Artur Llobet

Dr. Artur Llobet

Bellvitge Biomedical Research Institute (IDIBELL) (Spain)

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Prof. Dr. Ernest Giralt

Corresponding Author

Prof. Dr. Ernest Giralt

Institute for Research in Biomedicine (IRB Barcelona), C/Baldiri Reixac 10, 08028 Barcelona (Spain)

University of Barcelona (Spain)

Ernest Giralt, Institute for Research in Biomedicine (IRB Barcelona), C/Baldiri Reixac 10, 08028 Barcelona (Spain)

Pau Gorostiza, Institute for Bioengineering of Catalonia (IBEC), C/Baldiri Reixac 15-21, 08028 Barcelona (Spain)

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Prof. Dr. Pau Gorostiza

Corresponding Author

Prof. Dr. Pau Gorostiza

Institute for Bioengineering of Catalonia (IBEC), C/Baldiri Reixac 15-21, 08028 Barcelona (Spain)

CIBER-BBN and ICREA (Spain)

Ernest Giralt, Institute for Research in Biomedicine (IRB Barcelona), C/Baldiri Reixac 10, 08028 Barcelona (Spain)

Pau Gorostiza, Institute for Bioengineering of Catalonia (IBEC), C/Baldiri Reixac 15-21, 08028 Barcelona (Spain)

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First published: 17 June 2013
Citations: 86

We are grateful to A. Adeva for help with peptide synthesis at the initial stages of the project, to A. Lladó and L. Bardia for technical support with cell imaging and useful discussions, and to CCiTUB Flow Cytometry Facility for technical support. We thank S. J. Royle for providing the LCa–mRFP plasmid, H. McMahon for the β-appendage plasmid, T. Kirchhausen for the BSC-1 cell line. We acknowledge financial support from the Human Frontier Science Program through a Career Development Award (CDA022/2006), from the European Research Council through the “Opticalbullet” Starting Grant (ERC-StG-210355/2007), from the European Commission through the “Focus” ICT-FET grant (FP7-ICT-2009-270483), from the Ministry of Education through grant CTQ2008-06160, and a FPU fellowship (to A.M.-Q.), and from the RecerCaixa and Marató de TV3 foundations.

Graphical Abstract

Control of membrane traffic: Photoswitchable inhibitors of protein–protein interactions were applied to photoregulate clathrin-mediated endocytosis (CME) in living cells. Traffic light (TL) peptides acting as “stop” and “go” signals for membrane traffic can be used to dissect the role of CME in receptor internalization and in cell growth, division, and differentiation.

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