NO-bound myoglobin: structural diversity and dynamics of the NO ligand.
NO-bound myoglobin: structural diversity and dynamics of the NO ligand.
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NO 结合肌红蛋白:NO 配体的结构多样性和动力学。
DOI:
10.1021/ja039086x
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发表时间:
2004
影响因子:
15
通讯作者:
P. Kozlowski
中科院分区:
文献类型:
--
作者:
T. Żemojtel;M. Rini;K. Heyne;T. Dandekar;E. Nibbering;P. Kozlowski
We used femtosecond infrared polarization spectroscopy and density functional theory in a study on the key signaling molecule nitric oxide (NO) bound to myoglobin. Our results show that after photolysis, a substantial fraction of NO recombines within the first few picoseconds. We discovered that the diatomic ligand is severely tilted in the protein and present evidence that the Fe-NO moiety can sample a wide range of off-axis tilting and bending conformations.