LIGHT-HARVESTING COMPLEX II IN MONOCOMPONENT AND MIXED LIPID-PROTEIN MONOLAYERS

作者: Peter Kernen , Wiesław I. Gruszecki , Magdalena Matuła , Peter Wagner , Urs Ziegler

DOI: 10.1016/S0005-2736(98)00109-6

关键词:

摘要: Monomolecular layers at the air-water interface were formed directly with isolated largest light-harvesting pigment-protein complex of Photosystem II (LHC II) or out egg yolk lecithin (EYL) liposomes containing incorporated LHC II. Pure protein monolayers showed a mean area 1400 A2 per molecule interface. Monolayers deposited onto glass slides by means Langmuir-Blodgett (LB) technique. Chlorophyll fluorescence II-LB and EYL-LHC films proved energetic coupling chlorophyll b, thus indicating native conformation within monolayers. Scanning force microscopy (SFM) revealed ring-like structures in monocomponent as well mixed protein-lipid films. These results suggest that structural arrangement is favoured lipid environment but has itself strong tendency for rearrangement our system.

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