Crystal structure of plant photosystem I

Details Crystal structure of plant photosystem I Crystal structure of plant photosystem I

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003natur.426..630b&link_type=abstract

Nature, Volume 426, Issue 6967, pp. 630-635 (2003).

Computer Science

9

Scientific paper

Oxygenic photosynthesis is the principal producer of both oxygen and organic matter on Earth. The conversion of sunlight into chemical energy is driven by two multisubunit membrane protein complexes named photosystem I and II. We determined the crystal structure of the complete photosystem I (PSI) from a higher plant (Pisum sativum var. alaska) to 4.4Å resolution. Its intricate structure shows 12 core subunits, 4 different light-harvesting membrane proteins (LHCI) assembled in a half-moon shape on one side of the core, 45 transmembrane helices, 167 chlorophylls, 3 Fe-S clusters and 2 phylloquinones. About 20 chlorophylls are positioned in strategic locations in the cleft between LHCI and the core. This structure provides a framework for exploration not only of energy and electron transfer but also of the evolutionary forces that shaped the photosynthetic apparatus of terrestrial plants after the divergence of chloroplasts from marine cyanobacteria one billion years ago.

Affiliated with

Also associated with

No associations

Rating

Crystal structure of plant photosystem I does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Crystal structure of plant photosystem I, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crystal structure of plant photosystem I will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1549513