Light-harvesting features revealed by the structure of plant Photosystem I

被引:45
作者
Ben-Shem, A [1 ]
Frolow, F
Nelson, N
机构
[1] Tel Aviv Univ, George S Wise Fac Life Sci, Dept Biochem, IL-69978 Tel Aviv, Israel
[2] Tel Aviv Univ, George S Wise Fac Life Sci, Dept Mol Microbiol & Biotechnol, IL-69978 Tel Aviv, Israel
基金
以色列科学基金会;
关键词
evolution; light harvesting; LHC I; membrane protein complex; photosynthesis; Photosystem I; red chlorophylls; super-complex;
D O I
10.1023/B:PRES.0000036881.23512.42
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Oxygenic photosynthesis is driven by two multi-subunit membrane protein complexes, Photosystem I and Photosystem II. In plants and green algae, both complexes are composed of two moieties: a reaction center ( RC), where light-induced charge translocation occurs, and a peripheral antenna that absorbs light and funnels its energy to the reaction center. The peripheral antenna of PS I (LHC I) is composed of four gene products (Lhca 1-4) that are unique among the chlorophyll a/b binding proteins in their pronounced long-wavelength absorbance and in their assembly into dimers. The recently determined structure of plant Photosystem I provides the first relatively high-resolution structural model of a super-complex containing a reaction center and its peripheral antenna. We describe some of the structural features responsible for the unique properties of LHC I and discuss the advantages of the particular LHC I dimerization mode over monomeric or trimeric forms. In addition, we delineate some of the interactions between the peripheral antenna and the reaction center and discuss how they serve the purpose of dynamically altering the composition of LHC I in response to environmental pressure. Combining structural insight with spectroscopic data, we propose how altering LHC I composition may protect PS I from excessive light.
引用
收藏
页码:239 / 250
页数:12
相关论文
共 48 条
  • [31] GENERATION AND QUENCHING OF SINGLET MOLECULAR-OXYGEN BY AGGREGATED BACTERIOCHLOROPHYLL-D IN MODEL SYSTEMS AND CHLOROSOMES
    KRASNOVSKY, AA
    LOPEZ, J
    CHENG, P
    LIDDELL, PA
    BLANKENSHIP, RE
    MOORE, TA
    GUST, D
    [J]. PHOTOSYNTHESIS RESEARCH, 1994, 40 (02) : 191 - 198
  • [32] ATOMIC MODEL OF PLANT LIGHT-HARVESTING COMPLEX BY ELECTRON CRYSTALLOGRAPHY
    KUHLBRANDT, W
    WANG, DN
    FUJIYOSHI, Y
    [J]. NATURE, 1994, 367 (6464) : 614 - 621
  • [33] SINGLE CORE POLYPEPTIDE IN THE REACTION-CENTER OF THE PHOTOSYNTHETIC BACTERIUM HELIOBACILLUS-MOBILIS - STRUCTURAL IMPLICATIONS AND RELATIONS TO OTHER PHOTOSYSTEMS
    LIEBL, U
    MOCKENSTURMWILSON, M
    TROST, JT
    BRUNE, DC
    BLANKENSHIP, RE
    VERMAAS, W
    [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1993, 90 (15) : 7124 - 7128
  • [34] Crystal structure of spinach major light-harvesting complex at 2.72 Å resolution
    Liu, ZF
    Yan, HC
    Wang, KB
    Kuang, TY
    Zhang, JP
    Gui, LL
    An, XM
    Chang, WR
    [J]. NATURE, 2004, 428 (6980) : 287 - 292
  • [35] Time-resolved absorption and emission show that the CP43′ antenna ring of iron-stressed Synechocystis sp PCC6803 is efficiently coupled to the photosystem I reaction center core
    Melkozernov, AN
    Bibby, TS
    Lin, S
    Barber, J
    Blankenship, RE
    [J]. BIOCHEMISTRY, 2003, 42 (13) : 3893 - 3903
  • [36] The nature of a chlorophyll ligand in Lhca proteins determines the far red fluorescence emission typical of photosystem I
    Morosinotto, T
    Breton, J
    Bassi, R
    Croce, R
    [J]. JOURNAL OF BIOLOGICAL CHEMISTRY, 2003, 278 (49) : 49223 - 49229
  • [37] Mutation analysis of Lhca1 antenna complex - Low energy absorption forms originate from pigment-pigment interactions
    Morosinotto, T
    Castelletti, S
    Breton, J
    Bassi, R
    Croce, R
    [J]. JOURNAL OF BIOLOGICAL CHEMISTRY, 2002, 277 (39) : 36253 - 36261
  • [38] Adaptation to Fe-deficiency requires remodeling of the photosynthetic apparatus
    Moseley, JL
    Allinger, T
    Herzog, S
    Hoerth, P
    Wehinger, E
    Merchant, S
    Hippler, M
    [J]. EMBO JOURNAL, 2002, 21 (24) : 6709 - 6720
  • [39] Photosystem I reaction center: past and future
    Nelson, N
    Ben-Shem, A
    [J]. PHOTOSYNTHESIS RESEARCH, 2002, 73 (1-3) : 193 - 206
  • [40] LIPID-PROTEIN INTERACTIONS IN CRYSTALS OF PLANT LIGHT-HARVESTING COMPLEX
    NUSSBERGER, S
    DORR, K
    WANG, DN
    KUHLBRANDT, W
    [J]. JOURNAL OF MOLECULAR BIOLOGY, 1993, 234 (02) : 347 - 356