Počet záznamů: 1

The lamellar spacing in self-assembling bacteriochlorophyll aggregates is proportional to the length of the esterifying alcohol

  1. 1.
    0356394 - BC-A 2012 RIV NL eng J - Článek v odborném periodiku
    Pšenčík, J. - Torkkeli, M. - Župčanová, Anita - Vácha, František - Serimaa, R.E. - Tůma, R.
    The lamellar spacing in self-assembling bacteriochlorophyll aggregates is proportional to the length of the esterifying alcohol.
    Photosynthesis Research. Roč. 104, 2-3 (2010), s. 211-219 ISSN 0166-8595
    Grant CEP: GA ČR GA206/09/0375
    Výzkumný záměr: CEZ:AV0Z50510513
    Klíčová slova: Green photosynthetic bacteria * Chlorosome * Bacteriochlorophyll
    Kód oboru RIV: CE - Biochemie
    Impakt faktor: 2.410, rok: 2010

    Chlorosomes from green photosynthetic bacteria are large photosynthetic antennae containing self-assembling aggregates of bacteriochlorophyll c, d, or e. The pigments within chlorosomes are organized in curved lamellar structures. Aggregates with similar optical properties can be prepared in vitro, both in polar as well as non-polar solvents. In order to gain insight into their structure we examined hexane-induced aggregates of purified bacteriochlorophyll c by X-ray scattering. The bacteriochlorophyll c aggregates exhibit scattering features that are virtually identical to those of native chlorosomes demonstrating that the self-assembly of these pigments is fully encoded in their chemical structure. Thus, the hexane-induced aggregates constitute an excellent model to study the effects of chemical structure on assembly.Using bacteriochlorophyllides transesterified with different alcohols we have established a linear relationship between the esterifying alcohol length and the lamellar spacing.
    Trvalý link: http://hdl.handle.net/11104/0194924