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Probing Cage Relaxa...
Probing Cage Relaxation in Concentrated Protein Solutions by X-Ray Photon Correlation Spectroscopy
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- Chushkin, Yuriy (author)
- ESRF, The European Synchrotron, 71 Avenue des Martyrs, CS40220, 38043 Grenoble Cedex 9, France
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- Gulotta, Alessandro (author)
- Division of Physical Chemistry, Lund University, Naturvetarvägen 14, 22100 Lund, Sweden
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- Roosen-Runge, Felix (author)
- Malmö universitet,Institutionen för biomedicinsk vetenskap (BMV),Biofilms Research Center for Biointerfaces,Division of Physical Chemistry, Lund University, Naturvetarvägen 14, 22100 Lund, Sweden
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- Pal, Antara (author)
- Division of Physical Chemistry, Lund University, Naturvetarvägen 14, 22100 Lund, Sweden
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- Stradner, Anna (author)
- Division of Physical Chemistry, Lund University, Naturvetarvägen 14, 22100 Lund, Sweden; Lund Institute of advanced Neutron and X-ray Science LINXS, Lund University, Lund, Sweden
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- Schurtenberger, Peter (author)
- Division of Physical Chemistry, Lund University, Naturvetarvägen 14, 22100 Lund, Sweden; Lund Institute of advanced Neutron and X-ray Science LINXS, Lund University, Lund, Sweden
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(creator_code:org_t)
- 2022-11-29
- 2022
- English.
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In: Physical Review Letters. - : American Physical Society. - 0031-9007 .- 1079-7114. ; 129:23
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https://mau.diva-por... (primary) (Raw object)
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Abstract
Subject headings
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- Diffusion of proteins on length scales of their size is crucial for understanding the machinery of living cells. X-ray photon correlation spectroscopy (XPCS) is currently the only way to access long-time collective diffusion on these length scales, but radiation damage so far limits the use in biological systems. We apply a new approach to use XPCS to measure cage relaxation in crowded α-crystallin solutions. This allows us to correct for radiation effects, obtain missing information on long time diffusion, and support the fundamental analogy between protein and colloid dynamical arrest.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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