DOI > 10.5291/ILL-DATA.LTP-8-4

This proposal is publicly available since 10/15/2020

Title

High pressure studies on biological systems

Abstract

The effects of hydrostatic pressureon biological samples are poorly explored. The temperature influences the thermal energy as well as other thermodynamical parameters including the volume and the effects are difficult to separate. Pressure is a thermodynamical variable which has so far not been used extensively to probe biological samples. It provides, in particular, a well adapted tool for the study of protein folding and dynamic energy landscapes and makes it possible to characterise thermodynamically complex biological systems. It can open access to intermediate states, which cannot be reached by temperature variation. The lack of research using pressure is due to technical challenges and experimental difficulties, especially in combination with neutron scattering. Thus we will further develop the high pressure equipment present at the ILL and apply it for milestone experiments.

Experimental Report

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Data Citation

The recommended format for citing this dataset in a research publication is in the following format:

PETERS Judith; CARIO Anais; CZESLIK Claus; DEME Bruno; ERLKAMP Mirko; Bernhard Frick; GOLUB Maksym; GROBELNY Sebastian; JEBBAR Mohamed; LEHOFER Bernhard; LEME Mathieu; MARION Jeremie; MARTINEZ Nicolas; MICHOUD Gregoire; Phil Oger; PIAZZA Irina; PRASSL Ruth; SEYDEL Tilo; TEHEI Moeava; TRAPP Marcus; TROVASLET Marie and WINTER Roland. (2012). High pressure studies on biological systems. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.LTP-8-4

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Metadata

Experiment Parameters

  • Environment temperature

    300 K

Sample Parameters

  • Formula

    • Lipid membranes (DMPC, DOPC)
    • Natural membranes from Thermococcus barophilus
    • Acetylcholinesterase
    • 1,2-dimyristoyl-snglycero-3-phoshatidylcholine (DMPC)
    • Hen Egg white Lysozyme (from Sigma)
    • Polar Lipids
    • Lysozyme (C H N O S)/D2O
    • Kodakarensis cells
    • Yayanosii cells
    • E.coli cells
    • Egg yolk Very low density lipoprotein
    • Beta-Lactoglobulin (Sigma)
    • PSII membrane stacks
  • Consistence

    liquid; powder
  • Mass

    2000; 100; 200; 300
  • Size

    1ml (volume)
  • Container

    cylindrical pressure cell (built and tested at ILL)