Structure of plant photosystem I revealed by theoretical modeling

Craig Jolley, Adam Ben-Shem, Nathan Nelson, Petra Fromme*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Scopus citations


Photosystem (PS) I is a large membrane protein complex vital for oxygenic photosynthesis, one of the most important biological processes on the planet. We present an "atomic" model of higher plant PSI, based on theoretical modeling using the recent 4.4 Å x-ray crystal structure of PSI from pea. Because of the lack of information on the amino acid side chains in the x-ray structural model and the high cofactor content in this system, novel modeling techniques were developed. Our model reveals some important structural features of plant PSI that were not visible in the crystal structure, and our model sheds light on the evolutionary relationship between plant and cyanobacterial PSI.

Original languageEnglish
Pages (from-to)33627-33636
Number of pages10
JournalJournal of Biological Chemistry
Issue number39
StatePublished - 30 Sep 2005


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