Ultrastructural modeling of small angle scattering from photosynthetic membranes.

ABSTRACT: The last decade has seen a range of studies using non-invasive neutron and X-ray techniques to probe the ultrastructure of a variety of photosynthetic membrane systems. A common denominator in this work is the lack of an explicitly formulated underlying structural model, ultimately leading to ambiguity in the data interpretation. Here we formulate and implement a full mathematical model of the scattering from a stacked double bilayer membrane system taking instrumental resolution and polydispersity into account. We validate our model by direct simulation of scattering patterns from 3D structural models. Most importantly, we demonstrate that the full scattering curves from three structurally typical cyanobacterial thylakoid membrane systems measured in vivo can all be described within this

SUBMITTER: Jakubauskas D 

PROVIDER: S-EPMC6920412 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature