期刊
INORGANIC CHEMISTRY COMMUNICATIONS
卷 11, 期 8, 页码 935-938出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.inoche.2008.05.007
关键词
disulfide bond; methionine; oxytocin; platinum(II) complex
The electrospray mass spectrometry and NMR spectroscopy techniques reveal that the platinum(II)methionine complex [Pt(Met)Cl-2] binds to the disulfide bond between Cys1 and Cys6 residues of oxytocin (OT). The major adducts identified are [Pt(Met)(OT)]Cl-2 species where OT forms five- or six-membered chelates with Pt(II) center. The study suggests that even the oxidized disuffide in oligopeptide still shows a high affinity for platinum complexes, which may be associated with the ubiquity of sulfur-related side effects in platinum anticancer chemotherapy. (c) 2008 Elsevier B.V. All rights reserved.
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