... harvest light >1000 nm, use bacteriochlorophyll b rather than the more common bacteriochlorophyll a as their major photopigment, and assemble LH1 with an additional polypeptide subunit, LH1γ, encoded by multiple genes. To assign a role to γ, we deleted the four encoding genes in the model Blastochloris...

...-subunit LH1 ring in which each αβ heterodimer binds two bacteriochlorophylls and, unusually for currently reported complexes, two carotenoids rather than one. Although the extra carotenoids confer an advantage in terms of photoprotection and light harvesting, they could impede passage of quinones through...

... in GSB, while also pointing out some areas in need of further investigation. bacteriochlorophyll chlorophyll energy transfer light harvesting near-infrared spectroscopy time-resolved spectroscopy The two BChl molecules in LH1 monomers were extensively characterized prior to any high...

..., the electron-density maps do not support the existence of an additional Bchl (bacteriochlorophyll) molecule; rather the density is attributed to the N-termini of the α-polypeptide. 1 Present address: Ma Chung Research Center for Photosynthetic Pigments (MRCPP), Ma Chung University, Jl. Villa Puncak...

...: Plant Biochemistry Laboratory, Department of Plant Biology, The Royal Veterinary and Agricultural University, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark 6 7 1998 25 9 1998 28 10 1998 The Biochemical Society, London © 1999 1999 bacteriochlorophyll chlorophyll...