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Structure of the mitochondrial import gate reveals distinct preprotein paths

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Pore-forming proteins (PFPs), involved in host-pathogen interactions, are produced as soluble, generally monomeric, proteins. To convert from the soluble to the transmembrane form, PFPs assemble, in the vicinity of the target membrane, into ring-like struc ...

Elsevier2010

Intrinsic GTPase activity of a bacterial twin-arginine translocation proofreading chaperone induced by domain swapping

Julien Maillard

The bacterial twin-arginine translocation (Tat) system is a protein targeting pathway dedicated to the transport of folded proteins across the cytoplasmic membrane. Proteins transported on the Tat pathway are synthesised as precursors with N-terminal signa ...

2010

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Gamma-secretase, an integral membrane protein complex, catalyzes the intramembrane cleavage of the beta-amyloid precursor protein (APP) during the neuronal production of the amyloid beta-peptide. As such, the protease has emerged as a key target for develo ...

Elsevier2009

Identification of proteins in 3D maps of cells is a main challenge in structural cell biology. For light microscopy (LM) clonable reagents such as green fluorescent protein represented a real revolution and equivalent reagents for transmission electron mic ...

2008

Chemical approaches to microarrays and multifunctional protein labeling

India Christina Sielaff

With the human genome and many other eukaryotic and procaryotic genomes sequenced, the interest in life sciences is shifting towards the examination of the function, modification and regulation of the encoded proteins. Proteins are involved in virtually al ...

EPFL2006

Relations between structure and function of the mitochondrial ADP/ATP carrier

Import and export of metabolites through mitochondrial membranes are vital processes that are highly controlled and regulated at the level of the inner membrane. Proteins of the mitochondrial carrier family ( MCF ) are embedded in this membrane, and each m ...

Annual Reviews2006

Structural basis for lipid-mediated interactions between mitochondrial ADP/ATP carrier monomers

The oligomerization state of the ADP/ATP carrier is an important issue in understanding the mechanism underlying nucleotide exchange across the inner mitochondrial membrane. The first high resolution structure obtained in the presence of carboxyatractylosi ...

Elsevier2005

E1 empty set E4 protein of human papillomavirus type 16 associates with mitochondria

Peter Martin Beard

The human papillomavirus (HPV) E1 empty set E4 protein is the most abundantly expressed viral protein in HPV-infected epithelia. It possesses diverse activities, including the ability to bind to the cytokeratin network and to DEAD-box proteins, and in some ...

2004

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Characterizing the movement, interactions, and chem. microenvironment of a protein inside the living cell is crucial to a detailed understanding of its function. Most strategies aimed at realizing this objective are based on genetically fusing the protein ...

2003

The outer membrane protein OmpF from Escherichia coli is a member of a large family of b-barrel membrane proteins. Some, like OmpF, are pore-forming proteins while others are active transporters or enzymes. We have previously shown that the receptor-bindin ...

2002