University of Lincoln, UK

Molecular Machines

Danilo Roccatano

In my recent public talk at the Gravity Fields Festival 2016 I have shown different  models of molecular machines,  I have added some of them to this blog with the details on their construction.

The models have been generated using small script in awk language and represented using the program VMD (http://www.ks.uiuc.edu/Research/vmd/).

The Photosynthetic Apparatus of Rhodospirillum photometricum  

The photosynthetic apparatus of purple photosynthetic bacteria is particularly simple and it is located in a specialized membrane system that develops in the bacterial cytoplasm. They are composed by four integral membrane protein complexes: a peripheral LH2 antennae complexes that serve to collect light and transfer the absorbed energy to the second complex, the core-complex, which is constituted of an antenna complex (LH1) associated with the photochemical reaction centre (RC). The LH1 serves to funnel the light energy to the RC where a charge separation takes place catalysing the oxidation of a water…

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