Electrostatics of photosynthetic reaction centers in membranes

被引:0
作者
Pennisi, Cristian P. [1 ]
Greenbaum, Elias [2 ]
Yoshida, Ken [1 ]
机构
[1] Aalborg Univ, Ctr Sensory Motor Interact, Aalborg, Denmark
[2] Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37831 USA
来源
2006 28TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-15 | 2006年
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中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Photosynthetic reaction centers are integral membrane complexes. They have potential application as molecular photovoltaic structures and have been used in diverse technological applications. A three-dimensional electrostatic model of the Photosystem I reaction center (PSI) embedded in a lipid membrane is presented. The potential is obtained by solving the Poisson-Boltzmann equation with the finite element method (FEM). Simulations showing the potential distribution in a vesicle containing PSI reaction centers under different conditions are presented. The results of the simulations are compared with previous findings and a possible application of PSI to provide light activation of voltage-gated ion channels is discussed.
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页码:4781 / +
页数:2
相关论文
共 12 条
[1]   ELECTRIC-POTENTIAL DISTRIBUTIONS AROUND DISCRETE CHARGES IN A DIELECTRIC MEMBRANE - ELECTROLYTE SOLUTION SYSTEM [J].
ARAKELIAN, VB ;
WALTHER, D ;
DONATH, E .
COLLOID AND POLYMER SCIENCE, 1993, 271 (03) :268-276
[2]   Electron transfer in photosystem I [J].
Brettel, K ;
Leibl, W .
BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS, 2001, 1507 (1-3) :100-114
[3]   Photosynthetic proteins for technological applications [J].
Giardi, MT ;
Pace, E .
TRENDS IN BIOTECHNOLOGY, 2005, 23 (05) :257-263
[4]   PHOTOVOLTAIC EFFECTS IN BIOMEMBRANES - REVERSE-ENGINEERING NATURALLY-OCCURRING MOLECULAR OPTOELECTRONIC DEVICES [J].
HONG, FT .
IEEE ENGINEERING IN MEDICINE AND BIOLOGY MAGAZINE, 1994, 13 (01) :75-93
[5]   MEMBRANE-POTENTIALS IN PHOTOSYNTHESIS [J].
JUNGE, W .
ANNUAL REVIEW OF PLANT PHYSIOLOGY AND PLANT MOLECULAR BIOLOGY, 1977, 28 :503-536
[6]   Molecular photovoltaics and the photoactivation of mammalian cells [J].
Kuritz, T ;
Lee, I ;
Owens, ET ;
Humayun, M ;
Greenbaum, E .
IEEE TRANSACTIONS ON NANOBIOSCIENCE, 2005, 4 (02) :196-200
[7]   Biomolecular electronics: Vectorial arrays of photosynthetic reaction centers [J].
Lee, I ;
Lee, JW ;
Greenbaum, E .
PHYSICAL REVIEW LETTERS, 1997, 79 (17) :3294-3297
[8]   Measurement of electrostatic potentials above oriented single photosynthetic reaction centers [J].
Lee, I ;
Lee, JW ;
Stubna, A ;
Greenbaum, E .
JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (11) :2439-2443
[9]   Electrogenic reduction of the primary electron donor P700 by plastocyanin in photosystem I complexes [J].
Mamedov, MD ;
Mamedova, AA ;
Chamorovsky, SK ;
Semenov, AY .
FEBS LETTERS, 2001, 500 (03) :172-176
[10]  
O'Shea P, 2004, BIOELECTROCHEM P & P, V6, P23