Frequency-domain spectroscopic study of the PS I-CP43' supercomplex from the cyanobacterium Synechocystis PCC 6803 grown under iron stress conditions
Article Abstract:
Absorption, fluorescence excitation, emission, and hole-burning (HB) spectra are measured at liquid helium temperatures for the photosystem I PS I-CP43' supercomplexes of Synechocystis PCC 6803 grown under iron stress conditions and for respective trimeric PS I cores. The analysis has indicated that energy is likely transferred from the CP43' to the reaction center (RC) along a well-defined path and that the red antenna states of the PS I core are localized far away from that path, most likely on the B7-A32 and B37-B38 dimers in the vicinity of the PS I trimerization domain.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Ab initio ONIOM-molecular dynamics (MD) study in the deamination reaction by cytidine deaminase
Article Abstract:
The ONION-molecular dynamics (MD) method is applied to the hydrolytic deamination of cytidine by cytidine deaminase, which is an essential step of the activation process of the anticancer drug inside the human body. The results have showed that the neighboring amino acid residue has affected not only the geometry and energy of the substrate bust also the elementary step of the catalytic cycle and is a vital factor of the environmental effects to support the deamination reaction.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
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Role of fluorescence line-narrowing spectroscopy and related luminescence-based techniques in the elucidation of mechanisms of tumor initiation by polycyclic aromatic hydrocarbons and estrogens
Article Abstract:
Role of fluorescence line-narrowing spectroscopy and related luminescence-based techniques in the elucidation of mechanisms of tumor initiation by polycyclic aromatic hydrocarbons and estrogens are studied. The insights developed from the study enables to discover the estrogen metabolites that form depurinating DNA adducts and is predicted to be potential endogenous initiators of human cancer.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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