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A two-dimensional m...
A two-dimensional many-body system with competing interactions as a model for segregation of photosystems in thylakoids of green plants
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Rojdestvenski, I (författare)
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Ivanov, A G (författare)
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Cottam, M G (författare)
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visa fler...
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- Oquist, Gunnar, 1941- (författare)
- Umeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)
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visa färre...
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(creator_code:org_t)
- 2000
- 2000
- Engelska.
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Ingår i: European Biophysics Journal. - 0175-7571 .- 1432-1017. ; 29:3, s. 214-220
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- We address the segregation of photosystems I (PSI) and II (PSII) in thylakoid membranes by means of a molecular dynamics method. We assume a two-dimensional (in-plane) problem with PSI and PSII being represented by particles with different values of negative charge. The pair interactions between particles include a screened Coulomb repulsive part and am exponentially decaying attractive part. Our modeling results suggest that the system may have a complicated phase behavior, including a quasi-crystalline phase at low ionic screenmg, a disordered phase and: in addition, a possible "clotting" agglomerate phase at high screening where the photosystems tend to clot together. The relevance of the observed phenomena to the stacking of thylakoid membranes is discussed.
Nyckelord
- lipid-protein interactions
- photosystem I
- photosystem II
- thylakoid membranes
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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