Docking of photosystem I subunit C using a constrained geometric simulation |
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Authors: | Jolley Craig C Wells Stephen A Hespenheide Brandon M Thorpe Michael F Fromme Petra |
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Institution: | Department of Physics & Astronomy, The Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287, USA. |
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Abstract: | The elucidation of assembly pathways of multi-subunit protein complexes is a problem of great interest in structural biology and biomolecular modeling. In this study, we use a new computer algorithm for the simulation of large-scale motion in proteins to dock the subunit PsaC onto Photosystem I. We find that a complicated docking pathway involving multiple conformational changes can be quickly simulated by actively targeting only a few residues at a time to their target positions. Simulations for two possible docking scenarios are explored, and experimental approaches to distinguish between them are discussed. |
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