2010•Chemical CommunicationsOpen access

Direct observation of myoglobin structural dynamics from 100 picoseconds to 1 microsecond with picosecond X-ray solution scattering

Kyung Hwan Kim, Key Young Oang, Jeongho Kim, Jae Hyuk Lee, Young‐Min Kim, Hyotcherl Ihee

Abstract

Here we report structural dynamics of equine myoglobin (Mb) in response to the CO photodissociation visualized by picosecond time-resolved X-ray solution scattering. The data clearly reveal new structural dynamics that occur in the timescale of ∼360 picoseconds (ps) and ∼9 nanoseconds (ns), which have not been clearly detected in previous studies.

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Key concepts: Picosecond, Nanosecond, Microsecond, Myoglobin, Scattering, Dynamics (music), Photodissociation, X-ray