期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 9, 期 13, 页码 1611-1615出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b616173a
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A thorough absorption and circular dichroism study is performed in carbonmonoxy-myoglobin with a sub-picosecond visible pump, ultraviolet probe experiment. Differential absorption in the 220-360 nm range shows that the time-resolved response mainly comes from the heme and that aromatic amino acids do not contribute significantly. Time-resolved CD at 260 nm shows no dynamics and confirms this result. On the contrary, a strong CD dynamics is observed at 230 nm. This signal could originate from transient deformation of the alpha-helices in the protein.
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