WEB FOCUS

Protein transport and trafficking

In this focus

Carrier proteins are used to transport proteins across cellular membranes such as the plasma membrane, endoplasmic reticulum and nuclear envelope. Proteins are also trafficked between membrane-bound organelles inside membrane vesicles. Understanding these two processes has been a major focus of cell biology for several decades. Increasingly the focus is on a molecular description of the structure and mechanism of the complex protein components required to carry out these processes.

This web focus presents a selection of papers covering the latest advances in this area of research. We also present a Review article on protein transport across the endoplasmic reticulum and bacterial plasma membranes. We hope this collection of papers will interest a wide range of biologists engaged in different areas of research.

Image: Courtesy of John Heuser (Washington University) and Thomas Reese (National Institutes of Health)


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Current Research

NEWS AND VIEWS

Cell biology: Pore puzzle

John D. Aitchison & Richard W. Wozniak

Nature 450, 621–622 (29 November 2007) doi:10.1038/450621a


REVIEW

Protein translocation across the eukaryotic ER and bacterial plasma membranes

Tom A. Rapoport

Nature 450, 663–669 (29 November 2007) doi:10.1038/nature06384


ARTICLE

Determining the architectures of macromolecular assemblies

Frank Alber et al.

Nature 450, 683–694 (29 November 2007) doi:10.1038/nature06404


ARTICLE

The molecular architecture of the nuclear pore complex

Frank Alber et al.

Nature 450, 695–701 (29 November 2007) doi:10.1038/nature06405


ARTICLE

Shiga toxin induces tubular membrane invaginations for its uptake into cells

Winfried Römer et al.

Nature 450, 670–675 (29 November 2007) doi:10.1038/nature05996


ARTICLE

A dual–Ca2+-sensor model for neurotransmitter release in a central synapse

Thomas Sudhof

Nature 450, 676–682 (29 November 2007) doi:10.1038/nature06308


LETTER

How kinesin waits between steps

Teppei Mori, Ronald D. Vale & Michio Tomishige

Nature 450, 750–754 (29 November 2007) doi:10.1038/nature06346


LETTER

A SNARE-clathrin adaptor interaction reveals a new mode of cargo recognition for clathrin-coated vesicle transport

Sharon E. Miller, Brett M. Collins, Airlie J. McCoy, Margaret S. Robinson & David J. Owen

Nature 450, 570–574 (22 November 2007) doi:10.1038/nature06353


NEWS AND VIEWS

Microbiology: Pathogen drop-kick

Susanne Pfeffer

Nature 450, 361–362 (15 November 2007) doi:10.1038/450361a


ARTICLE

Legionella pneumophila proteins that regulate Rab1 membrane cycling

Alyssa Ingmundson, Anna Delprato, David G. Lambright & Craig R. Roy

Nature 450, 365–369 (15 November 2007) doi:10.1038/nature06336


NEWS AND VIEWS

Plant pathology: Deadly special deliveries

Nicholas J. Talbot

Nature 450, 41–43 (1 November 2007) doi:10.1038/450041a


LETTER

A translocation signal for delivery of oomycete effector proteins into host plant cells

Stephen C. Whisson et al.

Nature 450, 115–118 (1 November 2007) doi:10.1038/nature06203


LETTER

Functional architecture of the retromer cargo-recognition complex

Aitor Hierro et al.

Nature 449, 1063–1067 (25 October 2007) doi:10.1038/nature06216


LETTER

Architectural and mechanistic insights into an EHD ATPase involved in membrane remodelling

Oliver Daumke et al.

Nature 449, 923–927 (18 October 2007) doi:10.1038/nature06173


LETTER

Structural basis for selective recognition of ESCRT-III by the AAA ATPase Vps4

Takayuki Obita et al.

Nature 449, 735–739 (11 October 2007) doi:10.1038/nature06171


LETTER

ESCRT-III recognition by VPS4 ATPases

Melissa D. Stuchell-Brereton et al.

Nature 449, 740–744 (11 October 2007) doi:10.1038/nature06172


LETTER

Snapshots of nuclear pore complexes in action captured by cryo-electron tomography

Martin Beck, Vladan Lui, Friedrich Förster, Wolfgang Baumeister & Ohad Medalia

Nature 449, 611–615 (4 October 2007) doi:10.1038/nature06170


NEWS AND VIEWS

Cell biology: Taxi service for lipids

Anthony H. Futerman

Nature 449, 35–37 (6 September 2007) doi:10.1038/449035a


ARTICLE

Glycosphingolipid synthesis requires FAPP2 transfer of glucosylceramide

Giovanni D'Angelo et al.

Nature 449, 62–67 (6 September 2007) doi:10.1038/nature06097


ANALYSIS

Integrating molecular and network biology to decode endocytosis

Eva M. Schmid & Harvey T. McMahon

Nature 448, 883–888 (23 August 2007) doi:10.1038/nature06031


LETTER

Functional diversification of closely related ARF-GEFs in protein secretion and recycling

Sandra Richter et al.

Nature 448, 488–492 (26 July 2007) doi:10.1038/nature05967


LETTER

An ARF-GEF acting at the Golgi and in selective endocytosis in polarized plant cells

Ooi-kock Teh & Ian Moore

Nature 448, 493–496 (26 July 2007) doi:10.1038/nature06023


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Podcast

On this week's Nature Podcast, Michael Rout talks about how his team developed a new computational method to describe the architecture of the nuclear pore complex, the gateway to the nucleus. Click here to listen.


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Video

The gateway to the nucleus is described in detail in a coup for computational biology, published in two papers in Nature. The new computational method can illustrate the structure of large complexes containing many proteins, and is used to describe the structure of the nuclear pore complex — the largest protein complex in the cell. The researchers discuss their results here.


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