Concept

Thylakoïde

Publications associées (87)

Cadmium selenide nanocrystals for specific interactions with biomolecules

The goal of this work was to produce water-soluble fluorescent semiconductor nanocrystals suitable to interact specifically with biomolecules and thereby creating hybrid supramolecular structures composed of nanocrystals and proteins. Hydrophobic TOPO-coat ...

EPFL2005

On-line monitoring of Phaffia rhodozyma fed-batch process with in situ dispersive raman spectroscopy

Urs von Stockar, Ian William Marison, Christopher Cannizzaro, Martin Rhiel

Since the yeast Phaffia rhodozyma was first described some 35 yr ago, there has been significant interest in the development of com. processes to exploit its ability to produce carotenoids (.apprx.80% astaxanthin). However, the optimal conditions for carot ...

2003

Assessing the structure of membrane proteins: combining different methods gives the full picture

Henning Paul-Julius Stahlberg, Andreas Engel

The rotor stoichiometry of F-ATPases has been revealed by the combined approaches of X-ray diffraction (XRD), electron crystallography, and atomic force microscopy (AFM). XRD showed the rotor from the yeast mitochondrial F-ATPase to contain 10 subunits. AF ...

Canadian Science Publishing2002

Downstream processing of microcapsules: Quality control of capsule morphology, permeability and mechanical properties as a function of raw material endotoxin levels

Jutta Christine Wandrey, David Hunkeler

The large-scale prodn. of microcapsules with defined membrane thickness and permeabilities, both decoupled from the mech. resistance, is demonstrated. Specifically, a novel app., which controls the downstream part of the microencapsulation process has been ...

2002

Study of polyelectrolyte complex formation applying the synthetic boundary technique of analytical ultracentrifugation

Jutta Christine Wandrey, David Hunkeler

Polyelectrolyte complex membrane formation has been studied, online, using the synthetic boundary technique of an Optima XL-I anal. ultracentrifuge. This recent method, established by the first author, has now been evaluated concerning its sensitivity to m ...

2002

The GPI transamidase complex of Saccharomyces cerevisiae contains Gaa1p, Gpi8p, and Gpi16p

Patrick Fraering

Gpi8p and Gaa1p are essential components of the GPI transamidase that adds glycosylphosphatidylinositols (GPIs) to newly synthesized proteins. After solubilization in 1.5% digitonin and separation by blue native PAGE, Gpi8p is found in 430-650-kDa protein ...

American Society for Cell Biology2001

Bacterial Na+-ATP synthase has an undecameric rotor

Henning Paul-Julius Stahlberg, Andreas Engel

Synthesis of adenosine triphosphate (ATP) by the F1F0 ATP synthase involves a membrane-embedded rotary engine, the F-0 domain, which drives the extra-membranous catalytic F-1 domain. The F-0 domain consists of subunits a(1)b(2) and a cylindrical rotor asse ...

Wiley-Blackwell2001

Identification of the Escherichia coli K-12 Nramp orthologue (MntH) as a selective divalent metal ion transporter

Stewart Cole

The Escherichia coli mntH (formerly yfeP) gene encodes a putative membrane protein (MntH) highly similar to members of the eukaryotic Nramp family of divalent metal ion transporters. To determine the function of E. coli MntH, a null mutant was created and ...

2000

Demonstrating electron transfer and nanotechnology: A natural dye-sensitized nanocrystalline energy converter

A unique solar cell fabrication procedure has been developed using natural anthocyanin dyes extracted from berries. It can be reproduced with a minimum amount of resources in order to provide an interdisciplinary approach for lower-division undergraduate s ...

1998

The reaction center of the photounit of Rhodospirillum rubrum is anchored to the light-harvesting complex with four-fold rotational disorder

Horst Vogel, Henning Paul-Julius Stahlberg, Jacques Dubochet

The minimal photounit of the photosynthetic membranes of the purple non-sulfur bacterium Rhodospirillum rubrum, comprising the reaction center and the light-harvesting complex has been purified and crystd. in two dimensions in the presence of added phospho ...

1998

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