期刊
CHEMICAL PHYSICS LETTERS
卷 591, 期 -, 页码 137-141出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2013.11.026
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资金
- Japan Society of Promotion of Science [21241017]
- Grants-in-Aid for Scientific Research [25241010, 21241017, 24651057] Funding Source: KAKEN
X-ray absorption near edge structure (XANES) spectra for adenine-containing nucleotides, adenosine 5'-monophosphate (AMP) and adenosine 5'-triphosphate (ATP) in aqueous solutions at the nitrogen K-edge region were measured. The two intense peaks in XANES spectra are assigned to transitions of 1s electrons to the pi* orbitals of different types of N atoms with particular bonding characteristics. The difference between their spectra is ascribed to protonation of a particular N atom. Similarity observed in XANES spectra of guanosine 5'-monophosphate (GMP) and ATP is also interpreted as similar bonding characters of the N atoms in the nucleobase moiety. (C) 2013 Elsevier B.V. All rights reserved.
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