Coherent two dimensional infrared spectroscopy of a cyclic decapeptide antamanide. A simulation study of the amide-I and A bands.
Coherent two dimensional infrared spectroscopy of a cyclic decapeptide antamanide. A simulation study of the amide-I and A bands.
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DOI:
10.1021/jp801493y
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发表时间:
2008-10-02
影响因子:
3.3
通讯作者:
Mukamel, Shaul
中科院分区:
文献类型:
--
作者:
Falvo, Cyril;Hayashi, Tomoyuki;Zhuang, Wei;Mukamel, Shaul
The two dimensional infrared photon echo spectrum of Antamanide (-1Val-2Pro-3Pro-4Ala-5Phe-6Phe-7Pro-8Pro-9Phe-10Pro-) in chloroform is calculated using an explicit solvent MD simulation combined with a DFT map for the effective vibrational Hamiltonian. Evidence for a strong intramolecular hydrogen bonding network is found. Comparison with experimental absorption allows to identify the dominant conformation. Multidimensional spectroscopy reveals intramolecular couplings and gives information on its dynamics. A two color amide-I and amide-A cross peak is predicted and analyzed in term of local structure.
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影响因子:
2.9
作者:
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通讯作者:
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