Absorption spectral change of peripheral-light harvesting complexes 2 induced by magnesium protoporphyrin IX monomethyl ester association.

@article{Yue2015AbsorptionSC,
  title={Absorption spectral change of peripheral-light harvesting complexes 2 induced by magnesium protoporphyrin IX monomethyl ester association.},
  author={Huiying Yue and Chun-gui Zhao and Kai Li and Suping Yang},
  journal={Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy},
  year={2015},
  volume={137},
  pages={
          1153-7
        }
}
Several spectrally different types of peripheral light harvesting complexes (LH) have been reported in anoxygenic phototrophic bacteria in response to environmental changes. In this study, two spectral forms of LH2 (T-LH2 and U-LH2) were isolated from Rhodobacter azotoformans. The absorption of T-LH2 was extremely similar to the LH2 isolated from Rhodobacter sphaeroides. U-LH2 showed an extra peak at ∼423 nm in the carotenoid region. To explore the spectral origin of this absorption peak, the… Expand

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