Structural highlights
Publication Abstract from PubMed
The crystal structure at 4.8 angstrom resolution of the reaction center-light harvesting 1 (RC-LH1) core complex from Rhodopseudomonas palustris shows the reaction center surrounded by an oval LH1 complex that consists of 15 pairs of transmembrane helical alpha- and beta-apoproteins and their coordinated bacteriochlorophylls. Complete closure of the RC by the LH1 is prevented by a single transmembrane helix, out of register with the array of inner LH1 alpha-apoproteins. This break, located next to the binding site in the reaction center for the secondary electron acceptor ubiquinone (UQB), may provide a portal through which UQB can transfer electrons to cytochrome b/c1.
Crystal structure of the RC-LH1 core complex from Rhodopseudomonas palustris.,Roszak AW, Howard TD, Southall J, Gardiner AT, Law CJ, Isaacs NW, Cogdell RJ Science. 2003 Dec 12;302(5652):1969-72. PMID:14671305[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Roszak AW, Howard TD, Southall J, Gardiner AT, Law CJ, Isaacs NW, Cogdell RJ. Crystal structure of the RC-LH1 core complex from Rhodopseudomonas palustris. Science. 2003 Dec 12;302(5652):1969-72. PMID:14671305 doi:http://dx.doi.org/10.1126/science.1088892
