BB-norm+ner@ldeleger:BB-norm+ner-24584903 JSONTXT

{"project":"bionlp-ost-19-BB-norm-ner-test","denotations":[{"id":"T1","span":{"begin":0,"end":80},"obj":"Title"},{"id":"T2","span":{"begin":81,"end":1178},"obj":"Paragraph"}],"text":"On destabilization of the Fenna-Matthews-Olson complex of Chlorobaculum tepidum.\nThe Fenna-Matthews-Olson (FMO) complex from the green sulfur bacterium Chlorobaculum tepidum was studied with respect to its stability. We provide a critical assessment of published and recently measured optical spectra. FMO complexes were found to destabilize over time producing spectral shifts, with destabilized samples having significantly higher hole-burning efficiencies; indicating a remodeled protein energy landscape. Observed correlated peak shifts near 825 and 815 nm suggest possible correlated (protein) fluctuations. It is proposed that the value of 35 cm(-1) widely used for reorganization energy (E λ ), which has important implications for the contributions to the coherence rate (Kreisbeck and Kramer 3:2828-2833, 2012), in various modeling studies of two-dimensional electronic spectra is overestimated. We demonstrate that the value of E λ is most likely about 15-22 cm(-1) and suggest that spectra reported in the literature (often measured on different FMO samples) exhibit varied peak positions due to different purification/isolation procedures or destabilization effects. \n\n"}